HISTORY HAS IT that the four bright satellites of Jupiter were discovered independently by Galileo and the German astronomer Simon Mayer in the early seventeenth century. These initial glimpses of what we now call the Galilean moons of Jupiter are among the first great revelations to have accrued from pointing the newly invented telescope toward the heavens. Yet, were these men the first to observe Jupiter’s satellites? There have been persistent reports, particularly in the nineteenth century, that these moons can (...) be seen with the naked eye. (shrink)

In Seeing Things, Robert Hudson assesses a common way of arguing about observation reports called "robustness reasoning." Robustness reasoning claims that an observation report is more likely to be true if the report is produced by multiple, independent sources. Seeing Things argues that robustness reasoning lacks the special value it is often claimed to have. Hudson exposes key flaws in various popular philosophical defenses of robustness reasoning. This philosophical critique of robustness is extended by recounting five episodes in (...) the history of science (from experimental microbiology, atomic theory, astrophysics, and astronomy) where robustness reasoning is — or could be claimed to have been — used. Hudson goes on to show that none of these episodes do in fact exhibit robustness reasoning. In this way, the significance of robustness reasoning is rebutted on both philosophical and historical grounds. But the book does more than critique robustness reasoning. It also develops a better defense of the informative value of observation reports. The book concludes by relating insights into the failure of robustness reasoning to a popular approach to scientific realism called "(theoretical) preservationism." Hudson argues that those who defend this approach to realism commit similar errors to those who advocate robustness reasoning. In turn, a new form of realism is formulated and defended. Called "methodological preservationism," it recognizes the fundamental value of naked-eye observation to scientists — and the rest of us. (shrink)

In this paper, we discuss Babylonian observations of a “massing of the planets” reported in two Astronomical Diaries, BM 32562 and BM 46051. This extremely rare astronomical phenomenon was observed in Babylon between 20 and 30 March 185 BC shortly before sunrise when all five planets were simultaneously visible for about 10 to 15 min close to the horizon in the eastern morning sky. These two observational texts are not only interesting as records of an extremely rare planetary configuration, but (...) also because the observers appear to be confused by the presence of all planets simultaneously and mix them up in their reports, and the two reports of the same observations are so different that we are forced to conclude that they were carried out by two different observers. There is an additional astronomical event which makes this planetary configuration even more unique: the exact conjunction of the planets Mars and Jupiter in the afternoon of 25 March 185 BC. An exact conjunction, where two planets are so close together that they appear as one object in the sky, is also extremely rare. Although this exact conjunction between Mars and Jupiter occurred during the day so that it was not observable, it was correctly predicted by the Babylonian scholars: a remarkable achievement and a nice illustration of their astronomical craftsmanship. Finally, our study clearly exposes one of the limitations of Babylonian naked-eye astronomy. When first appearances of the planets Mercury, Mars and Saturn are expected around the same date, it is nearly impossible to correctly identify them because their expected positions are only approximately known while they have about the same visual magnitude so that they become visible at about the same altitude above the horizon. (shrink)

van Fraassen's constructivist empiricist account of theories makes an epistemic distinction between entities that can and cannot be observed with the naked eye. A belief about the correctness of a theoretical description of an entity that is observable with the naked eye can be warranted by a theory. In contrast, no theory can warrant a belief about the correctness of a description of an unobservable entity. I argue that we ought to instead adopt a view that takes account (...) of the fact that some entities that cannot be observed with the naked eye can nevertheless be observed on the basis of the same physical principle as those entities that can be. This suggests that there is a distinction different from van Fraassen's that might do the work van Fraassen intends his to do, but a distinction that is principled. Understanding why this is so suggests that his distinction is grounded merely in human chauvinism. (shrink)

ABSTRACTThe eyes reveal important social messages, such as emotions and whether a person is aroused and interested or bored and fatigued. A growing body of research has also shown that individuals with large pupils are generally evaluated positively by observers, while those with small pupils are perceived negatively. Here, we examined whether observed pupil size influences approach-avoidance tendencies. Participants performed an Approach-Avoidance Task using faces with large and small pupil sizes. Results showed that pupil size influences the accuracy of arm (...) movements. Specifically, individuals were less prone to approach a face with small pupils than a face with large pupils. Conversely, participants were less prone to avoid a face with large pupils than a face with small pupils. Collectively, these findings suggest that perceivers attend to a facial cue – pupil size – when interacting with others. (shrink)

ArgumentIn spring 1888, an anonymous critic raised severe doubts about Ernst Mach's and Peter Salcher's studies, published one year before, on the processes in the air caused by very rapid projectiles. Paraphrasing the experiments for the French popular science magazineLa Nature, the critic insinuated that the photographs upon which Mach and Salcher's argument were ostensibly based must have been of such low quality that they did not allow any well-founded conclusion. The critic did not deny the phenomena Mach and Salcher (...) had presented in their article; he denied that the photographs taken in the course of the experiments could permit any observation of the phenomena. I take the resulting quarrel as a window into the actors’ ideas on the requirements of “good observations” and the role of technical devices in this case. In particular I enquire how the various arguments relate to Lorraine Daston's and Peter Galison's framing of photography as an emblem of “mechanical objectivity.” We will see that in the case under debate, actors considered naked-eye observation, observation by telescope and photography mainly with regard to the challenges of the particular research object. (shrink)

The growth of strawberry will be stressed by biological or abiotic factors, which will cause a great threat to the yield and quality of strawberry, in which various strawberry diseased. However, the traditional identification methods have high misjudgment rate and poor real-time performance. In today's era of increasing demand for strawberry yield and quality, it is obvious that the traditional strawberry disease identification methods mainly rely on personal experience and naked eye observation and cannot meet the needs of (...) people for strawberry disease identification and control. Therefore, it is necessary to find a more effective method to identify strawberry diseases efficiently and provide corresponding disease description and control methods. In this paper, based on the deep convolution neural network technology, the recognition of strawberry common diseases was studied, as well as a new method based on deep convolution neural network strawberry disease recognition algorithm, through the normal training of strawberry image feature representation in different scenes, and then through the application of transfer learning method, the strawberry disease image features are added to the training set, and finally the features are classified and recognized to achieve the goal of disease recognition. Moreover, attention mechanism and central damage function are introduced into the classical convolutional neural network to solve the problem that the information loss of key feature areas in the existing classification methods of convolutional neural network affects the classification effect, and further improves the accuracy of convolutional neural network in image classification. (shrink)

It is no secret that scientists argue. They argue about theories. But even more, they argue about the evidence for theories. Is the evidence itself trustworthy? This is a bit surprising from the perspective of traditional empiricist accounts of scientific methodology according to which the evidence for scientific theories stems from observation, especially observation with the naked eye. These accounts portray the testing of scientific theories as a matter of comparing the predictions of the theory with the (...) data generated by these observations, which are taken to provide an objective link to reality. (shrink)

In the last number of the Classical Quarterly Dr. Holmes has asked if a trustworthy observer has ever seen with the naked eye a moon not more than 27 hours old in an atmosphere no clearer than that of Geneva. Hoping that I am a trustworthy observer, I will enumerate the cases where I have observed crescents of an age less than 27 hours. I have also constructed tables with which I find the moment when the moon becomes visible. (...) I believe the minimum for Heidelberg is 20 hours from February 1 to April 1, if the moon is at her perigee and the argument of latitude is between 60° and 120°. All times given here are mid-European time . I have never used a binocular. Heidelberg is 35 m. east of Greenwich, and 25 m. west of the mid-European meridian. (shrink)

I AM glad that Dr. Fotheringham in the interesting paper which appeared in the Classical Quarterly adhered to the view that ‘Caesar calculated the new moon for January 1 [45 B.C]…and that this calculation determined the inaugural day of the Julian calendar.’ As the object of my brief note, on which he commented, was merely to show that Groebe had failed to prove that the day in question was January 2, I have only a few questions to ask. But first, (...) in justice to Judeich, I ought to say that his calculations, which Dr. Fotheringham notices, were made with the help of the assistant-astronomer attached to the observatory of the University of Strassburg. While Dr. Fotheringham admits that I was right in maintaining that the new moon of January 2, 45 B.C. was not visible on the evening of that day, he holds that Groebe was ‘fairly entitled to say’ that the new moon of March 24, 58 B.C. , was visible on March 25. Dr. Fotheringham may be justified in saying that it ought ‘in normal [or abnormally fine ?] weather to have been visible that evening’; but, as I observed in my note, Groebe affirmed that in calculating the time of visibility of the crescent we should accept the mean of the Babylonian estimates, 36 hours—less, I should have added, in the early spring and the winter, more in the summer and autumn. Was he entitled to deduct 9 hours from the mean for an observation made not in the clear atmosphere of the East, but in Switzerland? Dr. Fotheringham tells us that ‘the shortest interval between a new moon and the observation of the moon by Schmidt's naked eye comes’ not, as Groebe said, to 29, but ‘to 25.7 hours.’ But forty-eight of Schmidt's forty-nine observations were made at Athens, where the atmosphere is clearer than in Switzerland. The great difference in visibility which a clear atmosphere makes must strike everyone who goes from this country or from Switzerland to the East or to Northern Africa. I realized it for the first time when I was exploring in Tunisia before the war. Has Dr. Fotheringham or any other trustworthy observer ever seen with the naked eye in an atmosphere no clearer than that of Geneva a moon not more than 27 hours old? If so, is it not remarkable that, as Dr. Fotheringham has said, ‘Hitherto it has been the practice to assume that [in the early spring or the winter and in favourable weather ?] the moon becomes visible on the first evening when she is more than 30 hours old at sunset’? (shrink)

Les transformations de l’habillement féminin dans la France de l’extrême fin du xviiie siècle suscitent une réaction du monde médical. Apparentant ces nouvelles tendances vestimentaires à un dévêtissement délétère, les médecins entreprennent de réguler les pratiques de leurs contemporaines à la mode et invoquent la préservation de la moralité, de la beauté et de la santé (individuelle et collective). L’étude à la fois resserrée et contextualisée d’un échantillon de textes médicaux met en lumière les conceptions genrées et les savoirs qui (...) les sous-tendent ainsi que les procédés d’écriture et les stratégies discursives qui les caractérisent. Allant de la dissuasion à la persuasion, ces discours témoignent de la mise en œuvre d’un regard qui dénude et érotise le corps féminin. Cet article éclaire un moment où le corps vêtu est perçu comme nu, et intéresse ainsi l’histoire des représentations de la nudité féminine. (shrink)

An argument is made that only through a detailed comparison of mutational mechanisms underlying the evolution of the genetic systems governing development, can the 'logic' of individual development be fully comprehended. To do this, it is essential to choose two or more genes (or their products) that interact in the establishment of a given function, and to compare the molecular basis of that interaction in closely related species. The rationale to this approach arises from observations of molecular co‐evolution between interacting (...) partners involved with given functions which have led to species specificity in the manner in which such functions are effected. Molecular coevolution reveals that divergence in sequence can be tolerated whilst biological functions are maintained, not because it is neutral and dispensable but because successful, compensatory changes can evolve in eukaryotic genomes that are in continuous states of flux. (shrink)

Laspro et al. (2024) contemplate the first whole eye transplant (WET) procedure in humans. They discuss the implications of such a procedure on the physical, social, and psychological well-being of...

Observing averted eye gaze results in the automatic allocation of attention to the gazed-at location. The role of the orientation of the face that produces the gaze cue was investigated. The eyes in the face could look left or right in a head-centred frame, but the face itself could be oriented 90 degrees clockwise or anticlockwise such that the eyes were gazing up or down. Significant cueing effects to targets presented to the left or right of the screen were found (...) in these head orientation conditions. This suggests that attention was directed to the side to which the eyes would have been looking towards, had the face been presented upright. This finding provides evidence that head orientation can affect gaze following, even when the head orientation alone is not a social cue. It also shows that the mechanism responsible for the allocation of attention following a gaze cue can be influenced by intrinsic object-based (i.e. head-centred) properties of the task-irrelevant cue. (shrink)

ABSTRACT This essay explores the ways in which theories and entities are culturally and intellectually embedded in historical and disciplinary contexts by looking at the development of a set of related theories of perception that emerged in response to contemporary Sceptical criticisms of the very possibility of doing empirical science. At the same time, it attempts to bring into focus a puzzle about precisely how (and how deeply) seeing itself is conditioned.

ABSTRACT This essay explores the ways in which theories and entities are culturally and intellectually embedded in historical and disciplinary contexts by looking at the development of a set of related theories of perception that emerged in response to contemporary Sceptical criticisms of the very possibility of doing empirical science. At the same time, it attempts to bring into focus a puzzle about precisely how (and how deeply) seeing itself is conditioned.

Name der Zeitschrift: Semiotica Jahrgang: 2017 Heft: 216 Seiten: 89-107.

The article reflects upon the observational practices and methods developed by the early exponents of ethology committed to naturalistic field study and explores how their approaches and techniques influenced a wider field of popular natural-history filmmaking and photography. In doing so, my focus is upon three aspects of ethological field studies: the socio-technical devices used by ethologists to bring birds closer to them, the distinctive observational and representational practices which they forged, and the analogies they used to codify behaviour. This (...) assemblage of elements included hides or screens from which to watch wild birds without disturbing them, optics to extend human vision, pens and paper to sketch and fix patterns of behaviour, watches to record timings, photography to capture action and freeze movement, and illustration and photographs to visualize behaviour. Carried through natural-history networks, the practices, methods and theories of ethologists like Huxley and Tinbergen influenced popular natural-history filmmaking and photography more broadly from the 1940s, driving a behavioural turn in these cultural practices. This popularization of the ‘ethological eye’ was further facilitated by the convergence of socio-technical devices, forms of observation and dramatization in the work of the early exponents of naturalistic field studies of birds and the popular filmmakers. (shrink)

Imagination has played a major role in theories of numerous aesthetic phenomena: it figures in accounts of the interpretation of art, of our emotional responses to art, and even of what art is, to name but a few topics. But imagination seemingly has a role to play also in aesthetic theorising itself, in particular in aesthetic thought experiments. Thought experiments in general pose an epistemic puzzle: how can a merely imagined scenario yield knowledge? In the paper, I have a look (...) at a special version of this puzzle that some thought experiments in aesthetics occasion. Many thought experiments in aesthetics—e.g. Kendall Walton’s guernica-experiment, or Arthur Danto’s imagined eight-hour long film of the title page of Tolstoy’s War and Peace—involve making judgements regarding the aesthetic properties of merely imagined works of art. But according to a widely accepted principle in aesthetics, one has to be acquainted with a work— seen it, heard it, and so on—in order to be able to judge its aesthetic qualities. But no one has ever seen Danto’s merely imagined film of Tolstoy’s book. So how are we in a position to judge its aesthetic properties? I propose a solution to the puzzle by elaborating on Tamar Gendler’s notion of “quasi-observation,” which she holds to be a common element of thought experimenting. As a coda, I also give a sketch of how aesthetic thought experiments are not only a tool for theorising about art, but often also figure in the production of art. (shrink)

The last chapter involves circumventing the difficulties raised in the previous chapter. The commitment to observation as a two-term relationship will be relaxed by adopting a special form of sensation--kinesthesis-proprioception--as the exemplary model. A more technical version of introspection--the concept of which is garnered from the experimental uses of introspection--is considered and the adaptability of experimental introspection to the requirement of a kinesthetic-proprioceptive model of observation is examined. The causal features of the former is used to reinforce positive (...) results from the examination. In the course of this discussion, it becomes clear that the defense of an observation model of introspection is strengthened once the failure to acknowledge introspection's causal features is repaired. ;As a result of adopting consciousness as distinctive of mental phenomena, a host of other problems with regarding introspection as a variety of sense observation arises. The paradigm for observation, sensation, involves a relationship between two disparate entities. Efforts to model introspection on sensation is deemed inadequate insofar as introspection does not also involve two entities. In presenting the various ways in which consciousness is supposed to be an obstacle to introspection in the third chapter, we find that they are all variations on a single theme: Consciousness undermines introspection as a form of observation by allowing the involvement of only a single entity. The first set of objections point to the absence of the introspecting subject. The second set of objections deny the presence of an introspected object. ;The second chapter is devoted to an investigation of introspection's supposed failure to produce descriptions of the mental on par with the descriptions of the physical yielded by sensation. The failure is attributed to the alleged conflict between characterizing mental phenomena as private and referring to such phenomena, a conflict expressed by Wittgenstein's private language argument. Efforts are made to reinstate descriptions of the mental. These efforts involve abandoning privacy as characteristic of the mental in favor of consciousness and incorporating behavior into the concept of the mental. The causal relations in which mental phenomena participate are employed to cement consciousness and behavior into a unified concept of the mental. ;The first chapter consists of an examination of Locke's theory of introspection. The traditional understanding of introspection as a variety of observation does not include causal features. However, in this thesis, we discover that Locke, one of the precursors of this traditional view, does give introspection a causal role. For what Locke does is model introspection upon sensation . The parallels that Locke draws between introspection and sensation are traced. Furthermore, it is shown that a proper perspective on various alternative accounts of Locke's notion of introspection can be gained only within the context of introspection's causal role. ;The basic problem discussed in this thesis is to determine whether introspection is a variety of observation. This involves investigating whether there are any features of the concepts of introspection or observation which militate against subsuming the former under the latter. The investigation proceeds by way of the presentation of a theory of introspection conceived as a type of observation followed by a defense of this theory against criticism. (shrink)

In recent years, many studies have shown that perceiving other individuals’ direct gaze has robust effects on various attentional and cognitive processes. However, considerably less attention has been devoted to investigating the affective effects triggered by eye contact. This article reviews research concerning the effects of others’ gaze direction on observers’ affective responses. The review focuses on studies in which affective reactions have been investigated in well-controlled laboratory experiments, and in which contextual factors possibly influencing perceivers’ affects have been controlled. (...) Two important themes emerged from this review. First, explicit affective evaluations of seeing another’s direct versus averted gaze have resulted in rather inconsistent findings; some studies report more positive subjective feelings to direct compared to averted gaze, whereas others report the opposite pattern. These contradictory findings may be related, for example, to differences between studies in terms of the capability of direct-gaze stimuli to elicit feelings of self-involvement. Second, studies relying on various implicit measures have reported more consistent results; they indicate that direct gaze increases affective arousal, and more importantly, that eye contact automatically evokes a positively valenced affective reaction. Based on the review, possible psychological mechanisms for the positive affective reactions elicited by eye contact are described. (shrink)

The colors we perceive are the outcome of an attempt to meaningfully order the spectral information from the environment. These colors are not the result of a straightforward mapping of a physical property to a sensation, but arise from an interaction between our environment and our visual system. Thus, although one may infer from a surface’ reflectance characteristics that it will be perceived as “colored,” true colors only arise by virtue of the interaction of the reflected light with the eye (...) (and brain) of an observer. (shrink)

The sixteenth century could be understand as a period of renaissance of interest in nature and as a period of development of natural history as a discipline. The spreading of the printing press was connected to the preparation of new editions of Classical texts and to the act of correcting and commenting on these texts. This forced scholars to confront texts with living nature and to subject it to more careful investigation. The discovery of America uncovered new horizons and brought (...) new natural products, which were exotic and unknown to Classical tradition. The aim of this study is to compare strategies and categories, which were used in describing plants of the Old and the New World. Attention will be paid to the first reactions to the new flora, to the methods of naming and describing plants, to the ways of gaining knowledge about plants from local sources or by means of one’s own observation. The confrontation with novelty puts naturalists in the Old World and in the New World in a similar situation. It reveals the limits of traditional knowledge based on Classical authorities. A closer investigation, however, brings to light not only the sometimes unexpected similarities, but also the differences which were due to the radical otherness of American plants. (shrink)

BackgroundPsychological support was provided by the Eye Movement Desensitization and Reprocessing Integrative Group Treatment Protocol within the hospitals in the Northern Italy in favor of healthcare workers during the COVID-19 pandemic. This study aimed at evaluating the effectiveness of treatment in terms of symptomatology reduction related to peri- and post-traumatic stress; clinical improvement over time; and the maintenance of the achieved outcome over time.MethodsThe population was composed of healthcare workers who spontaneously requested psychological intervention in both the first and the (...) second emergency waves. Statistical analyses were carried out to highlight the differences in Impact of Event-Revised and Post-Traumatic Growth Inventory before and after the group intervention.ResultsIn both the first and the second waves, pre-treatment values are higher than post-treatment values for all dimensions of the IES-R. The results show that there are no significant differences between the first and the second wave with regard to the treatment effect. Healthcare workers maintained positive changes over time despite their prolonged exposure to an emergency and the possibility of retraumatization at the onset of a new emergency phase, irrespective of their working place. Healthcare workers who were treated in the first wave showed at the beginning of the second emergency wave less vulnerability and more resilience than those who were treated only in the second wave.Pre-treatment scores of healthcare workers affected by COVID-19 are discussed.ConclusionCOVID-19 had a significant impact on the well-being of healthcare workers who were working in hospitals. Psychological support in case of emergency is needed. (shrink)

People often make use of a spatial “mental time line” to represent events in time. We investigated whether the eyes follow such a mental time line during online language comprehension of sentences that refer to the past, present, and future. Participants' eye movements were measured on a blank screen while they listened to these sentences. Saccade direction revealed that the future is mapped higher up in space than the past. Moreover, fewer saccades were made when two events are simultaneously taking (...) place at the present moment compared to two events that are happening in different points in time. This is the first evidence that oculomotor correlates reflect mental looking along an abstract invisible time line during online language comprehension about time. Our results support the idea that observing eye movements is likely to “detect” invisible spatial scaffoldings which are involved in cognitively processing abstract meaning, even when the abstract meaning lacks an explicit spatial correlate. Theoretical implications of these findings are discussed. (shrink)

In the last decade, we have observed a continuous increase of interest in eye movement research. According to a recent investigation, eye movements are discussed in over one million publications. The number of publications with eye movement in the title or abstract has been steadily increasing over the years, with over 1,200 papers published alone in 2013. The last decade has also witnessed the emergence of many new sub-disciplines in the field of neuroscience and cognition - one of them is (...) neuroaesthetics, which refers to the [neuro-]science of aesthetic perception of art.The title and contents of our book have been inspired by a very influential research article. It is one of the most cited scientific papers of all time, published in 1959 by a team of neurophysiologists and engineers, Lettvin, McCulloch and Pitts who are considered to be the founders of modern cybernetics. Their article, "What the Frog's Eye Tells the Frog's Brain," refers to the role of internal cortical models in the communication or interfacing of the information in the outside world with the practical contextual task of the viewer. It shows how eye movements are the modality of this communication. The same duality between eye movements and internal models plays a fundamental role in humans. When we look, for example, at art, it explains those neurological processes involved in neuroaesthetics. Our book undertakes this innovative approach to neuroaesthetics. It explains this duality and discusses the communication between the artist and the viewer's aesthetic perception. It is structured into five chapters.Chapter One discusses the neurology of aesthetics, the idea of art as a form of communication, and explains perception as an active matching between a "top" (the viewer's mind) and a "down" (the viewer's sensorial machinery). It goes deep into the philosophical quandary of what beauty is in terms of art. Chapter Two is about eye movements and the scanpath theory of vision perception. It discusses the role of visual attention for controlling active vision, the meaning of mental binding and the analysis of eye movements as the key to understanding aesthetic processes. Chapter Three introduces Claude Shannon's information theory using it as a matrix into which to embed the top down active vision scanpath theory. The authors explain the main concept of neuroaesthetics as a form of communication mediated by the sequence of eye fixations. Chapter Four discusses art critique: The role of the viewer's training and expectation, the dilemma of the aesthetics of art versus non-art and how all of this affects the viewing mode. Finally, Chapter Five treats the intimacy of the artistic process, showing the unique implementation of the communicative experience between the artist and the viewer - the relation between a pictorial representation defined by the artist and modes of AWE generated in the viewer during active looking. (shrink)

We know that reading involves coordination between textual characteristics and visual attention, but research linking eye movements during reading and comprehension assessed after reading is surprisingly limited, especially for reading long connected texts. We tested two competing possibilities: (a) the weak association hypothesis: Links between eye movements and comprehension are weak and short‐lived, versus (b) the strong association hypothesis: The two are robustly linked, even after a delay. Using a predictive modeling approach, we trained regression models to predict comprehension scores (...) from global eye movement features, using participant‐level cross‐validation to ensure that the models generalize across participants. We used data from three studies in which readers (Ns = 104, 130, 147) answered multiple‐choice comprehension questions ~30 min after reading a 6,500‐word text, or after reading up to eight 1,000‐word texts. The models generated accurate predictions of participants' text comprehension scores (correlations between observed and predicted comprehension: 0.384, 0.362, 0.372, ps <.001), in line with the strong association hypothesis. We found that making more, but shorter fixations, consistently predicted comprehension across all studies. Furthermore, models trained on one study's data could successfully predict comprehension on the others, suggesting generalizability across studies. Collectively, these findings suggest that there is a robust link between eye movements and subsequent comprehension of a long connected text, thereby connecting theories of low‐level eye movements with those of higher order text processing during reading. (shrink)

Semantic studies on diagrammatic notations (Barwise & Etchemendy, ; Shimojima, ; Stenning & Lemon, ) have revealed that the “non-deductive,” “emergent,” or “perceptual” effects of diagrams (Chandrasekaran, Kurup, Banerjee, Josephson, & Winkler, ; Kulpa, ; Larkin & Simon, ; Lindsay, ) are all rooted in the exploitation of spatial constraints on graphical structures. Thus, theoretically, this process is a key factor in inference with diagrams, explaining the frequently observed reduction of inferential load. The purpose of this study was to examine (...) the empirical basis for this theoretical suggestion, focusing on the reality of the constraint-exploitation strategy in actual practices of diagrammatic reasoning. Eye movements were recorded while participants used simple position diagrams to solve three- or four-term transitive inference problems. Our experiments revealed that the participants could exploit spatial constraints on graphical structures even when (a) they were not in the position of actually manipulating diagrams, (b) the semantic rule for the provided diagrams did not match their preferences, and (c) the constraint-exploitation strategy invited a partly adverse effect. These findings indicate that the hypothesized process is in fact robust, with the potential to broadly account for the inferential advantage of diagrams. (shrink)

The laboratory creation scene in Branagh’s film is brilliant….Even more frenzied and overwrought than Whale’s, Branagh’s creation scene is filmed with dozens of quick cuts, each shot full of movement across the frame. Victor races along his attic hall, cape flying before he discards it to appear bare-chested and vigorous. While pulleys move, bottles clank, and blue volts of electricity rise in glass Tesla tubes, the naked body on the gurney is raised into a copper vat. Electric eels dispense (...) their powerful shocks, a brown sac-like bellows "breathes" air or heat, and finally Victor stares close-up at the Creature’s eyes. The eyes are seen through a porthole in the vat: this, our first glimpse of the monster occurs nearly an hour into the film. "Live, live, live, live...." Victor chants, then "YES!" (much in the old Colin Clive mode) as it opens its eyes briefly. Nothing more occurs, though, and Victor walks away in despair; but, like us, he is brought suddenly to attention by a sharp and surprising snap of the monster’s fingers, which we also see close-up through a porthole (in a clear allusion to the Karloff monster’s birth scene). The next sequence drives home the fact that this is a real birth scene, as the vat is smashed open (the "water breaks") and Victor lifts out his huge new "baby," smacking its chest to clear its lungs. We watch an extended scene of birth struggle while Victor works to "deliver" his huge, naked, and hairless "baby" by lifting it out of the slime. Giving birth is not only very hard labor here; it’s messy, too. (shrink)

The focus of Through Your Eyes: Religious Alterity and the Early Modern Western Imaginations is the (mostly Western) understanding, representation and self-critical appropriation of the "religious other" between the sixteenth and eighteenth centuries. Mutually constitutive processes of selfing/othering are observed through the lenses of creedal Jews, a bhakti Brahmin, a widely translated Morisco historian, a collector of Western and Eastern singularia, Christian missionaries in Asia, critical converts, toleration theorists, and freethinkers: in other words, people dwelling in an 'in-between' space which (...) undermines any binary conception of the Self and the Other. The genesis of the volume was in exchanges between eight international scholars and the two editors, intellectual historian Giovanni Tarantino and anthropologist Paola von Wyss-Giacosa, who share an interest in comparatism, debates over toleration, and history of emotions. (shrink)

Dozens of records attest to the fact that during the mid-seventeenth century politicized public nudity or “going naked as a sign” as it was known to early modernsubjects proliferated. This practice captured so much popular attention that Sir Charles Sedley along with other royalist libertines notoriously stripped in front of 1,000 spectators in 1663 and delivered a mock sermon in a grotesque parody of religious sectarians. I examine Quaker approaches to signification, focusing on their deployment of incarnational signs to (...) advance a revolutionary challenge to the empty reified signs of a burgeoning secular and commercial culture. Although both men and women went naked as a sign, the creative potential of women’s bodies, I argue, constituted a doubly-threatening specter to observers. In the midst of a period that witnessed what James Holstun has characterized as “the sundering of human life from providential history,” women openly exposed their bodies in order to visually underscore their creative potential and to call attention to the sacred and incalculable promise of life itself. (shrink)

Spontaneous eye blink rate has been linked to attention and memory, specifically working memory. sEBR is also related to striatal dopamine activity with schizophrenia and Parkinson’s disease showing increases and decreases, respectively, in sEBR. A weakness of past studies of sEBR and WM is that correlations have been reported using blink rates taken at baseline either before or after performance of the tasks used to assess WM. The goal of the present study was to understand how fluctuations in sEBR during (...) different phases of a visual WM task predict task accuracy. In two experiments, with recordings of sEBR collected inside and outside of a magnetic resonance imaging bore, we observed sEBR to be positively correlated with WM task accuracy during the WM delay period. We also found task-related modulation of sEBR, including higher sEBR during the delay period compared to rest, and lower sEBR during task phases that place demands on visual attention. These results provide further evidence that sEBR could be an important predictor of WM task performance with the changes during the delay period suggesting a role in WM maintenance. The relationship of sEBR to DA activity and WM maintenance is discussed. (shrink)

Face perception and emotion categorization are widely investigated under laboratory conditions that are devoid of real social interaction. Using mobile eye-tracking glasses in a standardized diagnostic setting while applying the Autism Diagnostic Observation Schedule, we had the opportunity to record gaze behavior of children and adolescents with and without Autism Spectrum Conditions during social interaction. The objective was to investigate differences in eye-gaze behavior between three groups of children and adolescents either with ASC or with unconfirmed diagnosis of ASC (...) or with neurotypical development during social interaction with an adult interviewer in a diagnostic standard situation using the ADOS-2. In a case control study, we used mobile eye-tracking glasses in an ecologically valid and highly standardized diagnostic interview to investigate suspected cases of ASC. After completion of the ASC diagnostic gold standard including the ADOS-2, the participants were assigned to two groups based on their diagnosis and compared with a matched group of neurotypically developed controls. The primary outcome measure is the percentage of total dwell times assessed for different areas of interest with regard to the face and body of a diagnostic interviewer and the surrounding space. Overall, 65 children and adolescents within an age range of 8.3–17.9 years were included in the study. The data revealed significant group differences, especially in the central-face area. Previous investigations under laboratory conditions gave preferential attention to the eye region during face perception to describe differences between ASC and NTD. In this study – using an ecologically valid setting within a standard diagnostic procedure – the results indicate that neurotypically developed controls seem to process faces and facial expressions in a holistic manner originating from the central-face region. Conversely, participants on the Autism Spectrum seem to avoid the central-face region and show unsystematic gaze behavior, not using the preferred landing position in the central-face region as the Archimedean point of face perception. This study uses a new approach, and it will be important to replicate these preliminary findings in future research. (shrink)

Why do Humean eyes matter? The subject of David Hume’s eyes and face leads us into some unexpected curiosities connected with events in his life and written works. We outline the scholars’ propensity to describe the face of their favourite philosopher and spread upon it their personal reading of his life and writings. We ask questions about portraits, their resemblance to the original as a standard of beauty. We survey eighteenth-century physiognomy, and the humourous paradox of the “fat philosopher,” both (...) clumsy and refined. We inquire into Hume’s use of physiognomy, his views on corpulence and his own vacant look. We observe the role of Ramsay’s portraits in the 1766 dispute between Rousseau and Hume. We outline the role the eyes play in the body of his written work. We finally recall that the picture which he deemed the “best likeness” has now disappeared. Yet, there remains something still engraved. (shrink)

The nodes of controversy detected by the commentators on “Once More into the Breach” center on the meanings of words and the strategies for classifying observations rather than on empirical facts. This rejoinder explains why I continue to believe that: (1) consequences are not a useful criterion for classifying emotions, (2) the utility of the concept of basic emotions remains ambiguous, and (3) psychologists should spend more time probing the conditions that contribute to robust phenomena rather than trying to affirm (...) the validity of popular emotional words that fail to specify the agent, the incentive, or the local setting. (shrink)

Given a subject so imbued with contention and conflicting theoretical stances, it is remarkable that automated instruments ever came to replace the human eye as sensitive arbiters of color specification. Yet, dramatic shifts in assumptions and practice did occur in the first half of the twentieth century. How and why was confidence transferred from careful observers to mechanized devices when the property being measured – color – had become so closely identified with human physiology and psychology? A fertile perspective on (...) the problem is via the history of science and technology, paying particular attention to social groups and disciplinary identity to determine how those factors affected their communities’ cognitive territory. There were both common and discordant threads motivating the various technical groups that took on the problems of measuring light and color from the late nineteenth century onwards, and leading them towards the development of appropriate instruments for themselves. The transition from visual to photoelectric methods could be portrayed as a natural evolution, replacing the eye by an alternative roviding more sensitivity and convenience – indeed, this is the conventional positivist view propounded by technical histories. However, the adoption of new measurement technologies seldom is simple, and frequently has a significant cultural component. Beneath this slide towards automation lay a raft of implicit assumptions about objectivity, the nature of the observer, the role of instruments, and the trade-offs between standardization and descriptive power. While espousing rational arguments for a physical detector of color, its proponents weighted their views with tacit considerations. The reassignment of trust from the eye to automated instruments was influenced as much by the historical context as by intellectual factors. I will argue that several distinct aspects were involved, which include the reductive view of color provided by the trichromatic theory; the impetus provided by its association with photometry; the expanding mood for a quantitative and objective approach to scientific observation; and, the pressures for commercial standardization. As suggested by these factors, there was another shift of authority at play: from one technical specialism to another. The regularization of color involved appropriation of the subject by a particular set of social interests: communities of physicists and engineers espousing a ‘physicalist’ interpretation, rather than psychologists and physiologists for whom color was conceived as a more complex phenomenon. Moreover, the sources for automated color measurement, and instrumentation for measuring color, were primarily from the industrial sphere rather than from academic science. To understand these shifts, then, this chapter explores differing views of the importance of observers, machines and automation. (shrink)

Social attention is thought to require detecting the eyes of others and following their gaze. To be effective, observers must also be able to infer the person's thoughts and feelings about what he or she is looking at, but this has only rarely been investigated in laboratory studies. In this study, participants' eye movements were recorded while they chose which of four patterns they preferred. New observers were subsequently able to reliably guess the preference response by watching a replay of (...) the fixations. Moreover, when asked to mislead the person guessing, participants changed their looking behavior and guessing success was reduced. In a second experiment, naïve participants could also guess the preference of the original observers but were unable to identify trials which were lies. These results confirm that people can spontaneously use the gaze of others to infer their judgments, but also that these inferences are open to deception. (shrink)

Eye behavior is increasingly used as an indicator of internal versus external focus of attention both in research and application. However, available findings are partly inconsistent, which might be attributed to the different nature of the employed types of internal and external cognition tasks. The present study, therefore, investigated how consistently different eye parameters respond to internal versus external attentional focus across three task modalities: numerical, verbal, and visuo‐spatial. Three eye parameters robustly differentiated between internal and external attentional focus across (...) all tasks. Blinks, pupil diameter variance, and fixation disparity variance were consistently increased during internally directed attention. We also observed substantial attentional focus effects on other parameters (pupil diameter, fixation disparity, saccades, and microsaccades), but they were moderated by task type. Single‐trial analysis of our data using machine learning techniques further confirmed our results: Classifying the focus of attention by means of eye tracking works well across participants, but generalizing across tasks proves to be challenging. Based on the effects of task type on eye parameters, we discuss what eye parameters are best suited as indicators of internal versus external attentional focus in different settings. (shrink)

Humans often behave more prosocially when being observed in person and even in response to subtle eye cues, purportedly to manage their reputation. Previous research on this phenomenon has employed the “watching eyes paradigm,” in which adults displayed greater prosocial behavior in the presence of images of eyes versus inanimate objects. However, the robustness of the effect of eyes on prosocial behavior has recently been called into question. Therefore, the first goal of the present study was to attempt to replicate (...) this effect. Additionally, it remains unclear whether the watching-eyes effect is driven specifically by reputation management or whether any cues indexing human presence more generally also have a similar effect. To address these questions, the current study compared prosocial behavior in the presence of eyes versus inanimate objects as well as other human features. The study was conducted as a field experiment at a children’s museum. Each week, the donation signs were changed to show eyes, noses, mouths, or chairs. Total donation amount and number of patrons per week were recorded. Participants donated more when they were exposed to eyes than to inanimate objects. We thus replicated the previously reported watching-eyes effect. Moreover, more money was donated when individuals were exposed to eyes than to more general cues of human presence. The current findings suggest that eyes play a special role in promoting cooperation in humans, likely by serving as cues of monitoring and thus eliciting reputation management behavior. (shrink)

For over a century, drawing from observation, at least at the introductory level, has been integral to many secondary and most post-secondary art school programs in Europe and North America. Its place in such programs is understood to develop an ability to see and interpret on a flat surface the real, three-dimensional world; this skill, in turn, provides support to related mental processes such as memory, visualization, and imagination. Where an artist looks when drawing from observation may not (...) be arbitrary and can be observed, quantified, and analyzed. Our interest in examining the first few minutes of the drawing process takes its lead from the novice’s question, "Where should I begin?" Attempting to understand these first few minutes led to a collaborative study between art educators and cognitive-perceptual psychologists: the former interested in implications for practical pedagogy, the latter in applying expertise in eye movement and scientific methodology in service of a specific real-world question. The stated purpose of the study notwithstanding, contrasting histories and practices in art and science provided contexts for discussion beyond the collection and interpretation of data. This article seeks to report upon and further that discussion. (shrink)