This paper is about two requirements on wish reports whose interaction motivates a novel semantics for these ascriptions. The first requirement concerns the ambiguities that arise when determiner phrases, such as definite descriptions, interact with ‘wish’. More specifically, several theorists have recently argued that attitude ascriptions featuring counterfactual attitude verbs license interpretations on which the determiner phrase is interpreted relative to the subject’s beliefs. The second requirement involves the fact that desire reports in general require decision-theoretic notions for their analysis. (...) The current study is motivated by the fact that no existing account captures both of these aspects of wishing. I develop a semantics for wish reports that makes available belief-relative readings but also allows decision-theoretic notions to play a role in shaping the truth conditions of these ascriptions. The general idea is that we can analyze wishing in terms of a two-dimensional notion of expected utility. (shrink)

I want to differentiate between two very different ways of organizing pictorial elements at a very abstract level: -/- (2D) two-dimensionally: pictorial elements are organized and grouped according to their outline shape on the picture surface and (3D) three-dimensionally: pictorial elements are organized and grouped according to their position in the depicted space. -/- Suppose you need to depict seven identical spheres. On the most general level, there are two ways of doing this: you can arrange the seven spheres (...) in space and then choose a vantage point in this space from which you want to depict them. Or you can arrange seven circles (the outline shapes of the seven spheres) on the two-dimensional surface of the picture. The former method is an instance of three-dimensional pictorial organization, whereas the latter one is an instance of two-dimensional pictorial organization. (shrink)

Two models are developed for updating opinions in social networks under situations where certain beliefs might be considered to be competing. These two models represent different attitudes of people towards the perceived conflict between beliefs. In both models agents have a degree of tolerance, which represents the extent to which the agent takes into account the differing beliefs of other agents, and a degree of conflict, which represents the extent to which two beliefs are considered to be competing. Computer (...) simulations are used to determine how the opinion dynamics are affected by the inclusion of conflict. Results show that conflict can enhance the formation of consensus within the network in certain circumstances according to one of the models. (shrink)

Two models are developed for updating opinions in social networks under situations where certain beliefs might be considered to be competing. These two models represent different attitudes of people towards the perceived conflict between beliefs. In both models agents have a degree of tolerance, which represents the extent to which the agent takes into account the differing beliefs of other agents, and a degree of conflict, which represents the extent to which two beliefs are considered to be competing. Computer (...) simulations are used to determine how the opinion dynamics are affected by the inclusion of conflict. Results show that conflict can enhance the formation of consensus within the network in certain circumstances according to one of the models. (shrink)

Several authors have characterized a striking phenomenon of perceptual learning in visual discrimination tasks. This learning process is selective for the stimulus characteristics and location in the visual field. Since the human visual system exploits symmetry for object recognition we were interested in exploring how it learns to use preattentive symmetry cues for discriminating simple, meaningless, forms. In this study, similar to previous studies of perceptual learning, we asked whether the effects of practice acquired in the discrimination of pairs of (...) shape with a specific orientation of the symmetry axis would transfer to the discrimination of shapes with different orientation of symmetry axis, or to shapes presented in different areas of the visual field. We found that there was no learning transfer between forms with very different axes of symmetry (90° apart). Interestingly, however, we found a transfer of learning effect to horizontally oriented symmetry axis from a condition with an axis of symmetry differing by 45°. Also it appears that some subjects took a longer time to learn than the typical fast learning paradigm would predict. Data showed that when observers practice discrimination of meaningless symmetric forms, consistent improvement in the performance occurs. This improvement is lasting over days, and it tends to be specific for the area of the visual field trained. We will discuss results from some of the observers whose learning was not fast, but who actually improved with more practice and with large time intervals (1 day) between training sessions. (shrink)

For John Locke, the first step in an investigation of perception should be reflection. Locke's use of the term "perception" is somewhat broad. This chapter first presents a background to Locke's theory, and then describes the general psychophysical principle that governs his approach to sensation and two exceptions to that principle. Next, the chapter elucidates some of the subtleties of Locke's account of the visual perception of shape, subtleties that end up supporting an orthodox interpretation of his answer to (...) the Molyneux question. Some remarks on Locke's account of time perception are then presented. These remarks explain Locke's reasons for thinking that we get the idea of succession and duration from reflection, though he believes that we get ideas of our measures of duration from sensation. Locke infers that we may treat the perception of motion as a useful proxy for thinking about the succession of ideas in our minds. (shrink)

When experiencing personal distress, people usually expect their romantic partner to be supportive. However, when put in a situation to provide support, people may at times be struggling with issues of their own. This interdependent nature of dyadic coping interactions as well as potential spillover effects is mirrored in the state-of-the-art research method to behaviorally assess couple’s dyadic coping processes. This paradigm typically includes two videotaped 8-min dyadic coping conversations in which partners swap roles as sharer and support provider. Little (...) is known about how such dyadic coping interactions may feed back into one another, impacting the motivation and ability to be a responsive support provider. In three behavioral studies, we examined how sharers’ experiences may spill over to affect their own support provision in a subsequent dyadic coping interaction. We hypothesized that the extent to which sharers perceive their partner as responsive to their self-disclosure increases the quality of their own subsequent support provision, whereas sharers’ lingering negative affect reduces the quality of their own subsequent support provision. In line with our first hypothesis, perceived partner responsiveness predicted the provision of higher-quality support, though primarily as perceived by the partner. Sharers who perceived their partner to have been more responsive were somewhat more likely to subsequently engage in positive dyadic coping and were rated as more responsive by their partners. Negative dyadic coping behavior was unaffected. Evidence for our second hypothesis was mixed. While lingering negative affect did not affect positive dyadic coping behavior or perceived support, it did increase the chances of negative dyadic coping behavior. However, given the very low occurrences of negative affect and negative dyadic coping, these findings should be interpreted with caution. Taken together, these findings suggest that support interactions may feed back into one another, highlighting the complex and interdependent nature of dyadic coping. The strongest and most consistent findings concerned the spillover effect of perceived partner responsiveness on subsequent perceived support quality, speaking to the key role of believing that one’s partner is responsive to one’s needs in promoting healthy relationship functioning. (shrink)

Psychology and philosophy have long reflected on the role of perspective in vision. Since the dawn of modern vision science—roughly, since Helmholtz in the late 1800s—scientific explanations in vision have focused on understanding the computations that transform the sensed retinal image into percepts of the three-dimensional environment. The standard view in the science is that distal properties—viewpoint-independent properties of the environment (object shape) and viewpoint-dependent relational properties (3D orientation relative to the viewer)–are perceptually represented and that properties of the (...) proximal stimulus (in vision, the retinal image) are not. This view is woven into the nature of scientific explanation in perceptual psychology, and has guided impressive advances over the past 150 years. A recently published article suggests that in shape-perception, the standard view must be revised. It argues, on the basis of new empirical data, that a new entity—perspectival shape—should be introduced into scientific explanations of shape perception. Specifically, the article’s centrally advertised claim is that, in addition to distal shape, perspectival shape is perceived. We argue that this claim rests on a series of mistakes. Problems in experimental design entail that the article provides no empirical support for any claims regarding either perspective or the perception of shape. There are further problems in scientific reasoning and conceptual development. Detailing these criticisms and explaining how science treats these issues is meant to clarify method and theory, and to improve exchanges between the science and philosophy of perception. (shrink)

Action is a means of acquiring perceptual information about the environment. Turning around, for example, alters your spatial relations to surrounding objects and, hence, which of their properties you visually perceive. Moving your hand over an object’s surface enables you to feel its shape, temperature, and texture. Sniffing and walking around a room enables you to track down the source of an unpleasant smell. Active or passive movements of the body can also generate useful sources of perceptual information (Gibson (...) 1966, 1979). The pattern of optic flow in the retinal image produced by forward locomotion, for example, contains information about the direction in which you are heading, while motion parallax is a “cue” used by the visual system to estimate the relative distances of objects in your field of view. In these uncontroversial ways and others, perception is instrumentally dependent on action. According to an explanatory framework that Susan Hurley (1998) dubs the “Input-Output Picture”, the dependence of perception on action is purely instrumental: "Movement can alter sensory inputs and so result in different perceptions… changes in output are merely a means to changes in input, on which perception depends directly" (1998: 342). -/- The action-based theories of perception, reviewed in this entry, challenge the Input-Output Picture. They maintain that perception can also depend in a noninstrumental or constitutive way on action (or, more generally, on capacities for object-directed motor control). This position has taken many different forms in the history of philosophy and psychology. Most action-based theories of perception in the last 300 years, however, have looked to action in order to explain how vision, in particular, acquires either all or some of its spatial representational content. Accordingly, these are the theories on which we shall focus here. -/- We begin in Section 1 by discussing George Berkeley’s Towards a New Theory of Vision (1709), the historical locus classicus of action-based theories of perception, and one of the most influential texts on vision ever written. Berkeley argues that the basic or “proper” deliverance of vision is not an arrangement of voluminous objects in three-dimensional space, but rather a two-dimensional manifold of light and color. We then turn to a discussion of Lotze, Helmholtz, and the local sign doctrine. The “local signs” were felt cues for the mind to know what sort of spatial content to imbue visual experience with. For Lotze, these cues were “inflowing” kinaesthetic feelings that result from actually moving the eyes, while, for Helmholtz, they were “outflowing” motor commands sent to move the eyes. -/- In Section 2, we discuss sensorimotor contingency theories, which became prominent in the 20thcentury. These views maintain that an ability to predict the sensory consequences of self-initiated actions is necessary for perception. Among the motivations for this family of theories is the problem of visual direction constancy—why do objects appear to be stationary even though the locations on the retina to which they reflect light change with every eye movement?—as well as experiments on adaptation to optical rearrangement devices (ORDs) and sensory substitution. -/- Section 3 examines two other important 20th century theories. According to what we shall call the motor component theory, efference copies generated in the oculomotor system and/or proprioceptive feedback from eye-movements are used together with incoming sensory inputs to determine the spatial attributes of perceived objects. Efferent readiness theories, by contrast, look to the particular ways in which perceptual states prepare the observer to move and act in relation to the environment. The modest readiness theory, as we shall call it, claims that the way an object’s spatial attributes are represented in visual experience can be modulated by one or another form of covert action planning. The bold readiness theory argues for the stronger claim that perception just is covert readiness for action. -/- In Section 4, we move to the disposition theory, most influentially articulated by Gareth Evans (1982, 1985), but more recently defended by Rick Grush (2000, 2007). Evans’ theory is, at its core, very similar to the bold efferent readiness theory. There are some notable differences, though. Evans’ account is more finely articulated in some philosophical respects. It also does not posit a reduction of perception to behavioral dispositions, but rather posits that certain complicated relations between perceptual input and behavioral provide spatial content. Grush proposes a very specific theory that is like Evans’ in that it does not posit a reduction, but unlike Evans’ view, does not put behavioral dispositions and sensory input on an undifferentiated footing. (shrink)

Evolution and geometry generate complexity in similar ways. Evolution drives natural selection while geometry may capture the logic of this selection and express it visually, in terms of specific generic properties representing some kind of advantage. Geometry is ideally suited for expressing the logic of evolutionary selection for symmetry, which is found in the shape curves of vein systems and other natural objects such as leaves, cell membranes, or tunnel systems built by ants. The topology and geometry of symmetry (...) is controlled by numerical parameters, which act in analogy with a biological organism’s DNA. The introductory part of this paper reviews findings from experiments illustrating the critical role of two-dimensional (2D) design parameters, affine geometry and shape symmetry for visual or tactile shape sensation and perception-based decision making in populations of experts and non-experts. It will be shown that 2D fractal symmetry, referred to herein as the “symmetry of things in a thing”, results from principles very similar to those of affine projection. Results from experiments on aesthetic and visual preference judgments in response to 2D fractal trees with varying degrees of asymmetry are presented. In a first experiment (psychophysical scaling procedure), non-expert observers had to rate (on a scale from 0 to 10) the perceived beauty of a random series of 2D fractal trees with varying degrees of fractal symmetry. In a second experiment (two-alternative forced choice procedure), they had to express their preference for one of two shapes from the series. The shape pairs were presented successively in random order. Results show that the smallest possible fractal deviation from “symmetry of things in a thing” significantly reduces the perceived attractiveness of such shapes. The potential of future studies where different levels of complexity of fractal patterns are weighed against different degrees of symmetry is pointed out in the conclusion. (shrink)

It has been proposed that inferring personal authorship for an event gives rise to intentional binding, a perceptual illusion in which one’s action and inferred effect seem closer in time than they otherwise would . Using a novel, naturalistic paradigm, we conducted two experiments to test this hypothesis and examine the relationship between binding and self-reported authorship. In both experiments, an important authorship indicator – consistency between one’s action and a subsequent event – was manipulated, and its effects on binding (...) and self-reported authorship were measured. Results showed that action-event consistency enhanced both binding and self-reported authorship, supporting the hypothesis that binding arises from an inference of authorship. At the same time, evidence for a dissociation emerged, with consistency having a more robust effect on self-reports than on binding. Taken together, these results suggest that binding and self-reports reveal different aspects of the sense of authorship. (shrink)

This article seeks the origin, in the theories of Ibn al-Haytham (Alhazen), Descartes, and Berkeley, of two-stage theories of spatial perception, which hold that visual perception involves both an immediate representation of the proximal stimulus in a two-dimensional ‘‘sensory core’’ and also a subsequent perception of the three dimensional world. The works of Ibn al-Haytham, Descartes, and Berkeley already frame the major theoretical options that guided visual theory into the twentieth century. The field of visual perception was the first area (...) of what we now call psychology to apply mathematics, through geometrical models as used by Euclid, Ptolemy, Ibn al-Haytham, and Descartes (among others). The article shows that Kepler’s discovery of the retinal image, which revolutionized visual anatomy and entailed fundamental changes in visual physiology, did not alter the basic structure of theories of spatial vision. These changes in visual physiology are advanced especially in Descartes' Dioptrics and his L'Homme. Berkeley develops a radically empirist theory vision, according to which visual perception of depth is learned through associative processes that rely on the sense of touch. But Descartes and Berkeley share the assertion that there is a two-dimensional sensory core that is in principle available to consciousness. They also share the observation that we don't usually perceived this core, but find depth and distance to be phenomenally immediate, a point they struggle to accommodate theoretically. If our interpretation is correct, it was not a change in the theory of the psychology of vision that engendered the idea of a sensory core, but rather the introduction of the theory into a new metaphysical context. (shrink)

continent. 1.3 (2011): 208-212. … intervals of destructuring paradoxically carry the momentum for the ongoing process by which thought and perception are brought into relation toward transformative action. —Brian Massumi, Parables for the Virtual: Movement, Affect, Sensation 1 Facing a blank canvas or blank page is a moment of pure potential, one that can be enervating or paralyzing. It causes a pause, a hesitation, in anticipation of the moment of inception—even of one that never comes. The implication is that the (...) blank is yours in that moment, and it calls on you to act on it, to think into it, to create on it. Each blank canvas gives you time, of an undefined length, to transform that canvas’ inherent potential into a work. This two-dimensional plane of potential can be projected into a space, which the body can then occupy. When you “destructure” a space in the same way, prepare it to be a blank, much as you build a canvas, you allow your entire body to enter the space of potential, and you rest in anticipation of work, like the hand poised above the page. Artists have found that the deliberate creation of that space of potential through sealing the space and painting it white, thereby erasing details and distractions, can be such a transformative experience as to help define their whole practice. The cessation of distraction, the absence of indicator that a “blanked” workspace provides allows for a new presence of mind, it gives them the room, literally, to move into their work, and from there to move their work into the world. The workspace for the artist, the studio, is often perceived as a lab-like condensation of the gallery or museum, the traditional and idealized white cube. Similarly, with the blank page, a concrete relation between space and time comes forward as the intentional simplification of the architecture changes behavior and perception within the space. The work of “blanking” the studio space is a meditative reduction, an erasure, and in a way, an attempt at drawing away from the world beyond the studio - the sealed space is meant to recede from reality, to become abstracted by its willed lack of details and distractions. Within that space the time for a new beginning is made more present, more attainable, and the focus it fosters becomes another tool to aid creation. At the formative moment of his artistic practice, Tom Friedman used the blank of his studio, saturated in white, sealed off from the world, to fight velocity. He describes how he projected his vision of the end goal, the museum - a place he believes to be defined by slow contemplation - onto his own studio experience. He then sat and reflected on common objects, one by one, framed by the blank box he had created. The domestic objects he brought into the space to study foreshadow his mature works, where often the quotidian object has a single additional element – his intense labor. Friedman makes discrete objects through absurdly intense and focused labor, epitomized, perhaps by his 1,000 hours of Staring , made from 1992-97: Tom Friedman. 1000 Hours of Staring (1992-1997) His labor, to use his own words, is his way to “bring all of who you are to the experience.” Friedman shares his labor, allows the slow, deliberate pace of his work born in the studio to penetrate the museum. Nothing seems effortless, or a gesture, the labor is apparent, displayed, and tangible. He gives us the labor, the personal investment in the physical that saved art for him, that divorced the work from the language he cites as a factor of alienation. When we see his work we do not see words, we see acts, we see objects. He has forced the studio as workspace into the exhibition space, as he stuffs hundreds of more hours of labor into his shows with each new piece, filling the space with material and labor, material and labor – his involvement, his investment, is his gift to us as the viewers, as he introduces the laborious and contemplative pace he feels belongs to the museum. He saves us also from the alienation of language, which first drove him into the sealed studio and away from the discourse of his school. He presents us with his real, the object which stands in stark contrast to the white slate of the studio, the sealed white box he started from, where his individual, self-contained objects begin and end, completed through the intensity of isolation, first of the individual artist, and then of the material he chooses to slowly, slowly, slowly work: Tom Friedman. Untitled (1992) In his in-depth analysis of galleries as a blank white cube, Brian O’Doherty emphasizes the religious connotations implied in the strict laws of the exhibition space and the valuation, aesthetics and elements of control he feels it imposes upon the work. Like Friedman, he recognizes the power of the restricted space – indicating the “perceptual fields of force” – that act on any object introduced into it. Going beyond Friedman’s assessment of the space as highly utilitarian for focusing his perception, O’Doherty emphasizes the rejection of the physical body of the artist or observer, saying that the cube allows for only observation - eyes and mind. He later parallels the picture frame as a psychological container for the artist with the room as the same for the observer. In both cases, this is an emphasis on the alienating nature of the relationship – just as the artist is kept out of the frame by the picture, in the gallery the art forces the body of the spectator out, calling for a self-referential purity. Patrick Ireland. White Cube (1998) O’Doherty makes a point of saying that the installation shot of the gallery without figures is “one of the icons of our visual culture.” In recent years, however, installation shots have begun to include figures, in some cases they are essential to understanding the scale and even the nature of the work, specifically with work that captures the experience of the space and the way that it varies from a white cube. The work of Olafur Eliasson is a case in point, as the Danish artist uses elements of scientific and natural phenomena to alter perception within the controlled gallery environment, tweaking and redirecting O’Doherty’s “perceptual fields of force” to make points about the act of seeing, or seeing yourself seeing, to quote the artist. This indicates a shift in the role of the artwork, not to exclude the body and stand discretely and self-sufficiently, but to include it, to manipulate it and to make the observer aware of the nature of that manipulation and the work’s ability to manipulate. Olafur Eliasson. 360º room for all colours (2002) So though in O’Doherty’s analysis, the intense blankness of the gallery pushed the observer out in favor of the artwork’s isolation, artists can replicate this inhumane sterility in their own workspace to focus their work on the influence of the gallery right from inception. This can be interpreted as an almost opposite understanding of the purpose of sealing and whitewashing the workspace as stated by Friedman. He sought a refuge from the critical language of the art school, and a space that, like the museum, gave him a protracted sense of time, and, he felt, welcomed him in, “to bring all of who you are,” as opposed to O’Doherty’s feeling that the museum was asking you, at least in body, to leave, and allow the work to take on its own life. Friedman does not seem to imply the tension with the cube and critical stance that O’Doherty prioritizes. Where Friedman finds a refuge, O’Doherty defines an opponent. In a third position, Robert Irwin describes his sealed studio space as “the world.” Though he made the same effort as Friedman to seal out all influences and distractions, he implies that he is in dialogue with the world through his own concentration and perception. This is reminiscent of the nature of the monad, as interpreted by Deleuze, a unity that envelops a multiplicity, a sealed container that contains the universe. He went through the same ritual described by Friedman, sealing up the space, painting it white, and then forcing himself to remain inside, staring at his own work, training his concentration relentlessly. But he found that the room became the distraction: …he became aware that a thin crack along the wall a few yards away from the canvas likewise exerted its presence; that when he plastered that crack over and repainted the wall, the canvas itself presented an entirely new aspect.2 The context was in a relentless dialogue with the work, and trying to neutralize that dialogue, to mute the conversation between space and object, became part of his ritual as he “fixed” his space each day in the hope of total concentration on the work. Ultimately, Irwin shaped the trajectory of his art by relinquishing the studio, establishing a post-studio practice, where the work is conceived and created out in the world, in dialogue with the world and reflective of the conditions it finds surrounding it. The white cube failed to ever achieve neutrality, his heightened concentration prevented him from ever neutralizing the space, so, instead of continuing to try to maintain the charade of a perfect blank, he acknowledged the unstoppable voice of place and turned all his efforts onto the object and the world, as a constant dialogue. Some artists push their studio space far from purity, domesticating it like a lair or a living room, and others destroy it, fill it with chaos or detritus, blacken or clutter it so as never to be starting from a blank, and thereby try to avoid the anxiety of facing that void. Similarly artists may never prepare a white canvas, a clean page, a marble block, or other form that is intentionally lacking, in order to try to escape the dialogue with emptiness. But Irwin, like O’Doherty, found an opponent in the white cube, and he learned not to fight it, rather he ended the conflict by making it an ally, an interlocutor, a collaborator. We can vainly strive to start from nothing, to find the lull, the clearing, and to always consider what we do in balance with the empty set. Somehow that intangible cloud of hazy nothingness, that softness of a lapse continually offers a place to bounce off of, to react to, to wrestle with, to rest with, in tension, or a place to begin. Robert Irwin. Excursus: Homage to the Square3 (1998) NOTES 1 Massumi. Parables for the Virtual: Movement, Affect, Sensation. p271. 2 MOMA, NY. Eliasson, 360 ? Room for All Colours . Installation. 2002. (shrink)

The paper addresses the capabilities and limitations of extrafoveal processing during a categorical visual search. Previous research has established that a target could be identified from the very first or without any saccade, suggesting that extrafoveal perception is necessarily involved. However, the limits in complexity defining the processed information are still not clear. We performed four experiments with a gradual increase of stimuli complexity to determine the role of extrafoveal processing in searching for the categorically defined geometric shape. The (...) series of experiments demonstrated a significant role of extrafoveal processing while searching for simple two‐dimensional shapes and its gradual decrease in a condition with more complicated three‐dimensional shapes. The factors of objects’ spatial orientation and distractor homogeneity significantly influenced both reaction time and the number of saccades required to identify a categorically defined target. An analysis of the individual p‐value distributions revealed pronounced individual differences in using extrafoveal analysis and allowed examination of the performance of each particular participant. The condition with the forced prohibition of eye movements enabled us to investigate the efficacy of covert attention in the condition with complicated shapes. Our results indicate that both foveal and extrafoveal processing are simultaneously involved during a categorical search, and the specificity of their interaction is determined by the spatial orientation of objects, type of distractors, the prohibition to use overt attention, and individual characteristics of the participants. (shrink)

What role does language play during attention allocation in perceiving and remembering events? We recorded adults‟ eye movements as they studied animated motion events for a later recognition task. We compared native speakers of two languages that use different means of expressing motion (Greek and English). In Experiment 1, eye movements revealed that, when event encoding was made difficult by requiring a concurrent task that did not involve language (tapping), participants spent extra time studying what their language treats as the (...) details of the event. This „linguistic encoding‟ effect was eliminated both when event encoding was made easier (no concurrent task) and when the concurrent task required the use of language (counting aloud). In Experiment 2, under conditions of a delayed concurrent task of counting aloud, participants used language covertly just prior to engaging in the additional task. Together, the results indicate that language can be optionally recruited for encoding events, especially under conditions of high cognitive load. Yet, these effects are malleable and flexible and do not appear to shape core biases in event perception and memory. (shrink)

Twelve subjects provided shape and orientation judgments for a set of projectively equivalent, variously rotated rectangles under three viewing conditions—monoptic, dichoptic, and binocular—with and without the presence of a pattern mask. In the absence of the mask, partial constancy was exhibited under the first two conditions and near perfect constancy under the binocular condition. Orientation was discriminated. Presence of the mask produced projective shape matching and diminished orientation discrimination. It is argued that the site of masking was postchiasmal, (...) and the results are related to previous work with pattern masking of projectively equivalent ellipses. (shrink)

Arguably the most foundational principle in perception research is that our experience of the world goes beyond the retinal image; we perceive the distal environment itself, not the proximal stimulation it causes. Shape may be the paradigm case of such “unconscious inference”: When a coin is rotated in depth, we infer the circular object it truly is, discarding the perspectival ellipse projected on our eyes. But is this really the fate of such perspectival shapes? Or does a tilted coin (...) retain an elliptical appearance even when we know it’s circular? This question has generated heated debate from Locke and Hume to the present; but whereas extant arguments rely primarily on introspection, this problem is also open to empirical test. If tilted coins bear a representational similarity to elliptical objects, then a circular coin should, when rotated, impair search for a distal ellipse. Here, nine experiments demonstrate that this is so, suggesting that perspectival shapes persist in the mind far longer than traditionally assumed. Subjects saw search arrays of three-dimensional “coins,” and simply had to locate a distally elliptical coin. Surprisingly, rotated circular coins slowed search for elliptical targets, even when subjects clearly knew the rotated coins were circular. This pattern arose with static and dynamic cues, couldn’t be explained by strategic responding or unfamiliarity, generalized across shape classes, and occurred even with sustained viewing. Finally, these effects extended beyond artificial displays to real-world objects viewed in naturalistic, full-cue conditions. We conclude that objects have a remarkably persistent dual character: their objective shape “out there,” and their perspectival shape “from here.”. (shrink)

The aim of this chapter is to take a closer look at medieval discussions concerning the phenomenon of ‘perceiving as,’ and the psychological mechanisms that lie behind it. In contemporary philosophical literature this notion is usually used to refer to conceptual aspects of perception. For instance, when I perceive a black birdlike shape as a crow, I may be said to perceive the particular sensible thing x as an instance of a universal crowness φ, that is, as belonging to (...) a natural kind and falling under the concept of ‘crow’. In this sense, perceiving x as φ requires mastering the concept φ. However, I use the term ‘perceiving as’ in a wider sense and concentrate on various kinds of non-conceptual sensory processes, which can be understood as forms of ‘perceiving as’. Even though conceptual perception requires intellectual powers, medieval discussions on cognitive psychology can be understood properly only by taking into account the complex forms of perception that fall short of being truly intellectual, but are nevertheless over and above the simple sensation of sensible qualities of external things. The borderline between simple sensation and conceptual perception is unclear, and quite a lot is going on in the grey area between the two. Instead of presupposing any modern notion of ‘perceiving as’ and applying it to medieval discussions, my purpose is the opposite: to look at medieval discussions and see if they can be used to broaden modern discussions by including also non-conceptual varieties of perception. I shall begin the analysis in section two by specifying various types of cogni- tive processes that were discussed by medieval authors and can be considered as forms of ‘perceiving as’. The bulk of the historical work will be done in sec- tion three, where I focus on medieval discussions on three interrelated cogni- tive functions – perceiving different sensible qualities as a synthetic whole, incidental perception of one sensible quality through another, and the possi- bility of perceiving substances and recognising individuals. The reader should bear in mind that I shall use ideas from several medieval authors without pay- ing much attention to the differences between their theories of perception. Although occasionally radical, these differences are not highly relevant in the context of the present chapter. In section four, I propose two theoretical mod- els that can be used for analysing medieval views concerning these psychologi- cal phenomena. Finally, I conclude the chapter by making some remarks on the potential impacts of reading medieval views in relation to the concept of ‘perceiving as’. (shrink)

It is well established that the temporal proximity of two events is a fundamental cue to causality. Recent research with adults has shown that this relation is bidirectional: events that are believed to be causally related are perceived as occurring closer together in time—the so‐called temporal binding effect. Here, we examined the developmental origins of temporal binding. Participants predicted when an event that was either caused by a button press, or preceded by a non‐causal signal, would occur. We demonstrate (...) for the first time that children as young as 4 years are susceptible to temporal binding. Binding occurred both when the button press was executed via intentional action, and when a machine caused it. These results suggest binding is a fundamental, early developing property of perception and grounded in causal knowledge. (shrink)

Visualizing and mental imagery are thought to be cognitive states by all sides of the imagery debate. Yet the phenomenology of those states has distinctly visual ingredients. This has potential consequences for the hypothesis that vision is cognitively impenetrable, the ability of visual processes to ground perceptual warrant and justification, and the distinction between cognitive and perceptual phenomenology. I explore those consequences by describing two forms of visual ambiguity that involve visualizing: the ability to visually experience a picture surface as (...) flat after it has caused volumetric nonconceptual contents, and the ability to use a surface initially perceived as flat to visualize three-dimensional scenes. In both cases, the visual processes which extract viewer-centered volumetric shapes have to rely solely on monocular depth cues in the absence of parallax and stereopsis. Those processes can be cognitively penetrated by acts of visualizing, including ones that draw on conceptual information about kinds. However, the penetrability of the visual processes does not weaken their ability to provide perceptual warrant and justification for beliefs. The reason is that picture perceptions—whether they are stimulus -driven or based on acts of visualizing—are different to object perceptions both phenomenologically and in terms of their functional roles as states. Thus, although the penetrability of the visual processes does mean that subjects can have visual experiences with contradictory contents, perceptual belief is adopted at most towards one set of contents, and questions of warrant and justification are raised only for those contents. A rule-proving exception is provided by trompe-l’oeils. (shrink)

A number of popular arguments for dualism start from a premise about an epistemic gap between physical truths about truths about consciousness, and infer an ontological gap between physical processes and consciousness. Arguments of this sort include the conceivability argument, the knowledge argument, the explanatory-gap argument, and the property dualism argument. Such arguments are often resisted on the grounds that epistemic premises do not entail ontological conclusion. My view is that one can legitimately infer ontological conclusions from epistemic premises, if (...) one is very careful about how one reasons. To do so, the best way is to reason first from epistemic premises to modal conclusions , and from there to ontological conclusions. Here, the crucial issue is the link between the epistemic and modal domains. How can one reason from theses about what is knowable or conceivable to theses about what is necessary or possible? To bridge the epistemic and modal domains, the framework of two-dimensional semantics can play a central role. I have used this framework in earlier work to mount an argument against materialism. Here, I want to revisit the argument, laying it out in a more explicit and careful form, and responding to a number of objections. In what follows I will concentrate mostly on the conceivability argument. I think that very similar considerations apply to the other arguments mentioned above, however. In the final section of the paper, I show how this analysis might yield a unified treatment of a number of anti-materialist arguments. (shrink)

Objective performance measures are vastly used in sport psychology despite their inherent limitations (e.g., unaccounted baseline differences). Founded on the nature of group goals in team sports, we aimed at developing the Perceived Performance in Team Sports Questionnaire (PPTSQ) to capture the team members’ perception of their team’s performance. Accordingly, three dimensions were hypothesized:effort investment, skills execution, andperceived outcome. To measure these dimensions, items were generated to address the players’ perception of their team performance as a whole. Four samples (...) of athletes were used to test the psychometric properties of the PPTSQ: professional (n= 231), collegiate (n= 222), professional—retest (n= 89), and mixed professional–collegiate (n= 139). Exploratory and confirmatory factor analyses were used to estimate construct and content validities. These procedures revealed a better data fit to a two-dimensional model that consists of effort investment and perceived outcome. The reliability analyses for the PPTSQ provide satisfactory evidence that the questionnaire is a reliable measure of perceived performance in team sport. Adequate internal consistency emerged for both dimensions (0.75 < ω < 0.89). Furthermore, a high correlation was obtained for temporal stability. Concurrent validity was addressed by correlating the PPTSQ scores with the Group Environment Questionnaire and the Team Assessment Diagnostic Instrument. Correlational analysis between the PPTSQ and an objective measure of performance was used to test its predictive validity. The correlations strongly support the concurrent and predictive validities of the PPTSQ. We conclude that our perceived performance questionnaire can address various objective measures shortcomings (e.g., considering base-rate biases) resulting in a more meaningful team performance metric. Implication of the PPTSQ for sport psychology research and applied work enhancement are discussed in detail. (shrink)

We explain the general significance of integer-based descriptors for natural shapes and show that the evolution of two such descriptors, called mechanical descriptors (the number _N_(_t_) of static balance points and the Morse–Smale graph associated with the scalar distance function measured from the center of mass) appear to capture (unlike classical geophysical shape descriptors) one of our most fundamental intuitions about natural abrasion: shapes get monotonically _simplified_ in this process. Thus mechanical descriptors help to establish a correlation between subjective (...) and objective descriptors of perceived objects. (shrink)

D’Arcy Thompson’s drawings showing coordinated differences between the shape of an individual of one species and the shape of an individual of another have been reproduced and discussed countless times. However, while they have been widely regarded as inspirational, their interpretation in causal terms has proved difficult, and there is as yet no consensus on this matter. Here, I approach these Thompsonian transformations from a particular angle, namely their dimensional insufficiency. I argue that this problem must be solved (...) before the issue of causality can be considered. This approach leads to the conclusion that Thompsonian transformations—or “morphological transformations”—have not taken place in evolution, and logically can never do so, because they involve the direct conversion of the adult form of one species into that of another. In contrast, “developmental transformations” do occur in the short term, within the lifetime of a single individual. And “evolutionary transformations” occur in the long term, in a context that can be described, following Scott Gilbert, as five-dimensional. I argue that these two kinds of transformation—developmental and evolutionary—have different causal agencies. I consider the possible nature of these agencies and, related to that, the way in which Thompson’s work connects with Darwinian evolutionary theory. (shrink)

Two-dimensional approaches to semantics, broadly understood, recognize two "dimensions" of the meaning or content of linguistic items. On these approaches, expressions and their utterances are associated with two different sorts of semantic values, which play different explanatory roles. Typically, one semantic value is associated with reference and ordinary truth-conditions, while the other is associated with the way that reference and truth-conditions depend on the external world. The second sort of semantic value is often held to play a distinctive role in (...) analyzing matters of cognitive significance and/or context-dependence. (shrink)

Graeme Forbes (2011) raises some problems for two-dimensional semantic theories. The problems concern nested environments: linguistic environments where sentences are nested under both modal and epistemic operators. Closely related problems involving nested environments have been raised by Scott Soames (2005) and Josh Dever (2007). Soames goes so far as to say that nested environments pose the “chief technical problem” for strong two-dimensionalism. We call the problem of handling nested environments within two-dimensional semantics “the nesting problem”. We show that the two-dimensional (...) semantics for attitude ascriptions developed in Chalmers (2011a) has no trouble accommodating certain forms of the nesting problem that involve factive verbs such as “know” or “establish”. A certain form of the nesting problem involving apriority and necessity operators does raise an interesting puzzle, but we show how a generalized version of the nesting problem arises independently of two-dimensional semantics—it arises, in fact, for anyone who accepts the contingent a priori. We, then, provide a two-dimensional treatment of the apriority operator that fits the two-dimensional treatment of attitude verbs and apply it to the generalized nesting problem. We conclude that two-dimensionalism is not seriously threatened by cases involving the nesting of epistemic and modal operators. (shrink)

In a backward masking paradigm Epstein, Hatfield, and Muise (1977) found that presentation of a frontoparallel pattern mask caused the perceived shape of elliptical figures which were rotated in depth to conform to a projective shape function. The current study extended the masking function by examining the effect of a mask which was partially or wholly cotemporal with the target. The study also assessed the functional equivalence of the masking treatment and the conventional treatment for minimizing depth (...) information. Reports of perceived shape and perceived orientation were obtained under three conditions: binocular without mask, binocular with mask, monocular without mask. Under the first condition, perceived shape conformed to objective shape and perceived orientation was proportional to objective orientation. Under the latter two conditions, perceived shape was in very close agreement to projective shape and the two functions did not differ. Orientation was underestimated greatly under both conditions. We concluded that the effect of the mask on perceived shape is mediated by its effect on encoding of orientation information, although an additional effect on the subsequent stage of shape-slant integration cannot be excluded. (shrink)

The shape of hooks is of a taxonomic significance for cestoda. In order to characterize shape through numbers, a mathermatical model of drawings in two-dimensional space is proposed. This model is a synthetic one: first, it uses a large number of points on the edge of a hook-drawing as data; secondly, it enables to draw a specific hook by means of a computer after the parameters have been extracted from the data. The method does not use landmarks and (...) therefore avoids the difficulty of locating them. The ensuing discussion concerns description in common parlanceversus mathermatical language, the genesis of hooks and description in three-dimensional space. (shrink)

Convergence research is driven by specific and compelling problems and requires deep integration across disciplines. The potential of convergence research is widely recognized, but questions remain about how to design, facilitate, and assess such research. Here we analyze a seven-year, twelve-million-dollar convergence project on sustainable climate risk management to answer two questions. First, what is the impact of a project-level emphasis on the values that motivate and tie convergence research to the compelling problems? Second, how does participation in convergence projects (...) shape the research of postdoctoral scholars who are still in the process of establishing themselves professionally? We use an interview-based approach to characterize what the project specifically enabled in each participant’s research. We find that (a) the project pushed participants’ research into better alignment with the motivating concept of convergence research and that this effect was stronger for postdoctoral scholars than for more senior faculty. (b) Postdocs’ self-assessed understanding of key project themes, however, appears unconnected to metrics of project participation, raising questions about training and integration. Regarding values, (c) the project enabled heightened attention to values in the research of a large minority of participants. (d) Participants strongly believe in the importance of explicitly reflecting on values that motivate and pervade scientific research, but they question their own understanding of how to put value-focused science into practice. This mismatch of perceived importance with poor understanding highlights an unmet need in the practice of convergence science. (shrink)

This paper offers a two dimensional variation of Standard Deontic Logic SDL, which we call 2SDL. Using 2SDL we can show that we can overcome many of the difficulties that SDL has in representing linguistic sets of Contrary-to-Duties (known as paradoxes) including the Chisholm, Ross, Good Samaritan and Forrester paradoxes. We note that many dimensional logics have been around since 1947, and so 2SDL could have been presented already in the 1970s. Better late than never! As a detailed case study (...) illustrating the power of 2SDL, we examine the system DL of Deontic Logic of Andrew Jones and Ingmar Pörn offered in 1985 to solve the Chisholm paradox of Contrary to Duties. The critical examination is done using logics and methods available in 1985 and solutions are proposed using what was available in 1985. (shrink)

Little is known about people’s perceived benefits and risks of sports, despite their role in shaping people’s intentions to engage in them. Here, we developed and tested a scale to measure perceived physical, emotional, cognitive, and social benefits as well as aggression-related risks of karate and football. Additionally, we compared these perceptions within and between these two sports, as well as among undergraduates with current/former participation in different types of physical activity. After a literature review, we created a (...) 5-factor scale with 20 items administered to 184 undergraduates, along with questions about physical activity participation. After removing five items, confirmatory factor analyses supported the factor structure of the scale. Factor loadings and reliability indices were acceptable, though less than desirable results were found concerning the average variance extracted of all benefits dimensions and the reliability of the social benefits dimension. Analyses of variance showed that: physical benefits were seen as the salient outcomes of karate and football, though martial artists perceived karate’s physical, emotional, and social benefits to the same extent; in comparison to football, karate was perceived to bring more emotional and cognitive benefits and to entail less aggressiveness risks; karate and football perceptions varied as a function of participant’s involvement in physical activity. This study presents a promising instrument to gather information on people’s perceptions about karate and football, which can be used to foster people’s engagement in them. (shrink)

Principles of chance deference face two kinds of problems. In the first place, they face difficulties with a priori knowable contingencies. In the second place, they face difficulties in cases where you've lost track of the time. I provide a principle of chance deference which handles these problem cases. This principle has a surprising consequence for Adam Elga's Sleeping Beauty Puzzle.

Visual attentional processes have been an important topic in psychological research for years. Over the last few decades, new methods have been developed, aiming to explore the characteristics of the focus of attention in more detail. Studies that applied the “Attention-Window Task” quantified the maximum extent of the “Attention Window” along its horizontal, vertical, and diagonal meridians, when subjects were required to perceive two peripheral stimuli simultaneously. In three experiments using the AWT, we investigated the effects of cue validity, stimulus-onset (...) asynchrony, and target stimuli complexity on the size and shape of the AW. Results showed that the AW was greater under valid cue conditions compared to invalid conditions, when the locations of cue and target stimuli differed. Furthermore, the AW decreased when the SOA between the cue and targets was reduced and also when the task complexity was higher and more objects within the target stimuli had to be classified. Overall, it can be stated that the AWT with its possible task changes and adjustments can be considered as a potential standard tool to measure the maximum spread and shape of the spatial AW. (shrink)

Why is two-dimensional semantics important? One can think of it as the most recent act in a drama involving three of the central concepts of philosophy: meaning, reason, and modality. First, Kant linked reason and modality, by suggesting that what is necessary is knowable a priori, and vice versa. Second, Frege linked reason and meaning, by proposing an aspect of meaning (sense) that is constitutively tied to cognitive signi?cance. Third, Carnap linked meaning and modality, by proposing an aspect of meaning (...) (intension) that is constitutively tied to possibility and necessity. (shrink)

Two-dimensional semantics is a framework that helps us better understand some of the most fundamental issues in philosophy: those having to do with the relationship between the meaning of words, the way the world is, and our knowledge of the meaning of words. This selection of new essays by some of the world's leading authorities in this field sheds fresh light both on foundational issues regarding two-dimensional semantics and on its specific applications. Contributors: Richard Breheny, Alex Byrne, David Chalmers, Martin (...) Davies, Gareth Evans, Manuel Garcia-Carpintero, Josep Maci`, Martine Nida-Rumelin, Christopher Peacocke, James Pryor, Francois Recanati, Scott Soames, Cara Spencer, Robert Stalnaker, Kai-Yee Wong, Stephen Yablo. (shrink)

This paper offers a two dimensional variation of Standard Deontic Logic SDL, which we call 2SDL. Using 2SDL we can show that we can overcome many of the difficulties that SDL has in representing linguistic sets of Contrary-to-Duties (known as paradoxes) including the Chisholm, Ross, Good Samaritan and Forrester paradoxes. We note that many dimensional logics have been around since 1947, and so 2SDL could have been presented already in the 1970s. Better late than never! As a detailed case study (...) illustrating the power of 2SDL, we examine the system DL of Deontic Logic of Andrew Jones and Ingmar Pörn offered in 1985 to solve the Chisholm paradox of Contrary to Duties. The critical examination is done using logics and methods available in 1985 and solutions are proposed using what was available in 1985. (shrink)

The business case for social responsibility is one of the most widely studied topics in the business and society literature that focuses on large firms. This attention is understandable because large firms have an obligation to shareholders who, as commonly assumed, seek to maximize returns on their investments, in turn, pressing corporate managers to show that firms’ expenditures in social engagement would pay off. Small firms, on the other hand, rarely face such pressures, yet the BCSR logic is increasingly applied (...) to small firms as well. Our primary objective in this paper is to examine whether and how much do small firm owners’ perceptions of BCSR affect the firm’s social engagement. In finding a fine-grained answer to those questions, we consider BCSR as a two-dimensional construct consisting of tangible and intangible benefits, and also integrate the BCSR perspective with the slack resource perspective to offer a motivation-capacity lens to examine firm’s social engagement. Drawing on a multi-industry sample of 478 small firms in the US, we find that while small firm owners’ perceptions about potential tangible benefits of social engagement are not related to the firm’s social engagement, perceptions about potential intangible are positively related. Firm's financial performance is also positively related to its social engagement, but there is no interaction between potential benefits and financial performance. This study contributes to an improved understanding about small firms’ social engagement, which still remains an understudied area. Our results are in line with studies which argue that firms’ social engagement is a response to institutional factors. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Studies in Plato's Two-Level ModelIan MuellerHolger Thesleff. Studies in Plato's Two-Level Model. Helsinki: Societas Scientarum Fennica, 1999. Pp. vi + 143. N. P.After some 30 years of incisive intervention in Platonic scholarship, Holger Thesleff here offers us "an attempt to elaborate and ground more firmly some basic theses which I have propounded in various contexts before," (1) a rather modest description of what he also describes as an (...) attempt to contribute toward "a more general agreement on how to read and interpret Plato" (5). The richness of this book makes it impossible to describe in any detail, and I shall content myself with indicating some of what I take to be its principal points of view.Thesleff"s concern for agreement arises from his perception of the vastly discrepant schools of Plato interpretation, of which the most important for him might be labeled esotericist, analytic, and "literary." The last, which can hardly be called a school at all, includes a variety of scholars who downplay "literal" interpretation and emphasize such things as "dramatic artistry, the structure of the dialogues, the characterization of settings and persons, shifts of style, allusions, play, and irony" (3). Thesleff's sympathies clearly lie with these people, perhaps to an extent which, as I shall suggest, will limit the effectiveness of his attempt to move toward a consensus.As the title indicates Thesleff builds his reading around what he calls Plato's two-level model. This two-level model is not, as one might suppose, what has been called Plato's two worlds view, the belief in a world of pure being beyond the perceived world we inhabit. Indeed, it is not a doctrine or set of doctrines at all. Rather "it is an intuitive 'vision' which offers only crude basic patterns and frames for the structures of Plato's thinking, feelings, intuitions, and intentions, from his youth to his old age, and for our understanding of them" (123). Clearly one cannot expect a full and precise articulation of this vision. Thesleff proceeds by discussing in terms of their role in the earlier dialogues ten hierarchic pairs which form part of Plato's vision: divine/human, soul/body, leading/being led (particularly important in the conduct of a Socratic discussion), truth/appearance, knowledge/opinion, intellect/senses, defined/undefined, stability/change, one/many, same/different. These hierarchic or asymmetric pairs are contrasted by Thesleff with what he calls polar opposites like large/small and light/dark. He also stresses that the hierarchic pairs of Plato's two-level model involve no separation (chorismos), but rather a communion (koinônia).As the words "from his youth to his old age" in the quotation of the previous paragraph indicate, Thesleff is a "unitarian" in his approach to Plato. His Plato is not a philosopher whose positions changed through time as a result of reasoned argument. What many scholars take to be doctrines later given up, e.g., the view that learning is being reminded (anamnêsis), are "thought experiments," which are not followed up, thought experiments made within the context of the unchanging two-level vision.Although Thesleff is a unitarian in the sense I have indicated, he does believe that a kind of order of composition can be constructed for the dialogues. I say "kind of" because Thesleff's chronology involves assumptions of revisions over time, multiple authorship, and even dialogues "written down" by people other than Plato. The resulting chronology is complex, and I here only indicate it in rough form in a way which [End Page 272] brings out what I take to be its major points. Leaving out of account those Socratic" dialogues which Thesleff takes to be latish and the posthumously completed Laws, we can say that a series of late dialogues starts with the Parmenides and includes the Timaeus, Critias, Sophist, Politicus, and Philebus. All other dialogues, including the Theaetetus, were written prior to the Parmenides with the exception of the Republic, which Thesleff proposes is in its ultimate shape a late work, representing "only and purely Plato's 'own' and personal philosophy" (115). As for the other late dialogues, which have played an important... (shrink)

This paper offers a two dimensional variation of Standard Deontic Logic SDL, which we call 2SDL. Using 2SDL we can show that we can overcome many of the difficulties that SDL has in representing linguistic sets of Contrary-to-Duties (known as paradoxes) including the Chisholm, Ross, Good Samaritan and Forrester paradoxes. We note that many dimensional logics have been around since 1947, and so 2SDL could have been presented already in the 1970s. Better late than never! As a detailed case study (...) illustrating the power of 2SDL, we examine the system DL of Deontic Logic of Andrew Jones and Ingmar Pörn offered in 1985 to solve the Chisholm paradox of Contrary to Duties. The critical examination is done using logics and methods available in 1985 and solutions are proposed using what was available in 1985. (shrink)

In this article, I analyze the particular perception of the world Baptists start to learn during their conversion which I call the three-dimensional perception of reality. This concept refers to the ability to incorporate narratives from the Bible into everyday life events and interpret both personal stories and world events accordingly, thereby making the Bible ever relevant. Based on ethnographic fieldwork, I show how events from the believers' daily lives are perceived and explained in the light of biblical stories. (...) Regardless of the fact that the two are separated in time and in space, the biblical story is still seen as a proto-event to the current one. No matter how diverse the believers' experiences, they are capable of finding an equivalent episode in the Bible. The scripture, therefore, is ever present in the believers' lives, as a source of meaning and interpretation. (shrink)

This book deals with philosophical aspects regarding the perception of spatial relationships in two and three-dimensional art. It provides a structural understanding of how art is perceived within the space created by the artwork, and employs a mapping sentence and partial order mereology to model perceptual structure. It reviews the writing of philosophers such as Paul Crowther and art theorists such as Krauss to establish the need for this research. The ontological model established Paul Crowther is used to guide (...) an interactive account of his ontology in the interpretations of the perceptual process of three-dimensional abstract art to allow the formulation of a more comprehensive philosophical account. The book uniquely combines structuralist and post-structuralist approaches to artistic perception and understanding with a conceptual structure from facet theory, which is clarified with the help of a mapping sentence and partial order mereology. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Two Books on Thomas HobbesPerez ZagorinQuentin Skinner, Reason and Rhetoric in the Philosophy of Hobbes (Cambridge: Cambridge University Press, 1996), xvi, 477p.The Correspondence of Thomas Hobbes, ed. Noel Malcolm, 2 vols. (Oxford: Clarendon Press, 1994), lxxxv, 1008p.The literature on Hobbes in English and other European languages has grown so large in the past two decades that it has become almost unmanageable by students of the philosopher. No one who (...) is interested in Hobbes, however, can afford to overlook the two books that are reviewed here, the first, Quentin Skinner’s study of the relationship of Hobbes to rhetoric, and the second, Noel Malcolm’s edition of Hobbes’s correspondence.Skinner is well known not only as a leading British Hobbes scholar and historian of early modern political thought but likewise for his ideas concerning the correct method of studying the history of political philosophy. In a view akin to R. G. Collingwood’s he maintains that there are no permanent or perennial questions in political philosophy and that a historical approach based on a thorough comprehension of context is the only way to grasp what political philosophers are doing and saying when they write their texts. In implementing this prescription, he argues that to understand a historical text it is necessary to reconstruct its author’s intentions and the meaning of his ideas by ascertaining the linguistic conventions and usages and the intellectual currents and back-ground that form its context. He offers the present study both as an exem-plification of this method and as a new interpretation of the principles of Hobbes’s political philosophy which takes rhetoric as its focal theme. His aim, he tells us, is to situate Hobbes’s theory and practice of civil science within its intellectual context and to depict the philosopher less as the author of a philosophical system than as a contributor to a series of debates about the moral sciences within Renaissance culture. Our judgment of the success of his work will accordingly depend on whether or not we are satisfied that rhetoric possessed for Hobbes and his philosophy the crucial significance that Skinner claims for it [End Page 361].In recent years a number of scholars have discussed Hobbes’s attitude to rhetoric, and there have been at least two books on the subject. 1 Commensurate, however, with its ambitious goal of proffering a new interpretation of Hobbes’s work on politics, Skinner’s treatment of his involvement with rhetoric is much richer and far more learned than preceding studies. By rhetoric most people nowadays mean no more than a writer’s literary strategy, but this is not what Skinner intends by the term. He deals with rhetoric precisely as Hobbes would have understood it and in the sense it bore in the ancient world and the Renaissance, when it signified a major discipline of knowledge concerned with the various figures of speech and devices of language that constituted an art of persuasion and eloquence indispensable in the education of the orator, the statesman, the writer, and the gentleman.Skinner perceives Hobbes’s mind as formed in the early years of his career by his classical education and immersion in the literary-rhetorical culture of English Renaissance humanism derived from Greco-Roman antiquity and ancient authors on rhetoric like Aristotle, Cicero, and Quintilian. Starting from this point, he pictures Hobbes’s intellectual evolution as consisting of three successive stages: a humanist, a scientific, and a scientific-humanist. In the first, as a late Renaissance intellectual, Hobbes’s initial interest in politics as a civil science was shaped by his involvement in the humanistic disciplines of rhetoric, history, poetry, and moral and political philosophy. The result was the publication in 1629 of his English translation of Thucydides’ History, with the observations contained in his introduction. In the second stage he turned against the literary-rhetorical character of Renaissance culture and its approach to politics. This shift, which occurred in the 1630s, was caused by his discovery of the geometrical method, his pursuit of his scientific interests through his association with Sir Charles Cavendish and his friends, and his introduction to the Parisian scientific circle of Marin... (shrink)

This study is situated within the newly emerging interest in the concept of grace as a legitimate topic for empirical enquiry, and draws on the theoretical framework provided by the SIFT approach to biblical hermeneutics, an approach rooted in reader-perspective hermeneutical theory and in Jungian psychological type theory. Data were draw from two one-day workshops with Anglican Readers (lay ministers). On each occasion the participants were invited to divide into three separate groups according to their preferences for sensing or intuition (...) (the two perceiving functions) and within these groups to explore the messages of grace in Matthew 6: 25–30 (Jesus’ invitation to look at the birds and to consider the lilies). The rich data gathered from these workshops generated insights into contemporary theologies of grace and also confirmed the hypothesis that biblical interpretation is shaped by the reader’s psychological type preference for sensing or for intuition. (shrink)

Two-dimensional (2D) semantics is a formal framework that is used to characterize the meaning of certain linguistic expressions and the entailment relations among sentences containing them. 2D semantics has also been applied to thought contents. In contrast with standard possible worlds semantics, 2D semantics assigns extensions and truth-values to expressions relative to two possible world parameters, rather than just one. So a 2D semantic framework provides finer-grained semantic values than those available within standard possible world semantics, while using the same (...) basic model-theoretic resources. The 2D framework itself is just a formal tool. To develop a semantic theory for someone’s language, a proponent of 2D semantics must do three things: (i) explain what exactly the two possible world parameters represent, (ii) explain the rules for assigning 2D semantic values to a person’s words and sentences, and (iii) explain how 2D semantic values help in understanding the meanings of the person’s words and sentences. (shrink)