This book has been conceived from a series of speeches which took place during the Filmforum Festival of Udine and Gorizia whose main theme was the use of moving images in the space of contemporary art. The aim of this publication is to create a scientific framework of some of the most important artistic experiences: from the use of archive images to the newest participatory practices. The book consists of essays selected during the Filmforum Festival and the MAGIS International Film (...) Studies Spring School and texts from invited researchers. It examines the ways in which the transient qualities of time have been used in contemporary moving images production and in their display. (shrink)

Evidence has accumulated that rod activation under mesopic and scotopic light levels alters visual perception and performance. Here we review the most recent developments in the measurement of rod and cone contributions to mesopic color perception and temporal processing, with a focus on data measured using the four-primary photostimulator method that independently controls rod and cone excitations. We discuss the findings in the context of rod inputs to the three primary retinogeniculate pathways to understand rod contributions to mesopic (...) class='Hi'>vision. Additionally, we present evidence that hue perception is possible under scotopic, pure rod-mediated conditions that involves cortical mechanisms. (shrink)

Conceptual metaphor theory (CMT) has become prominent in metaphor scholarship because of its explanation of the relations between people's metaphoric thoughts and their use of metaphoric discourse. Our aim in this article is to explore the temporal characteristics of how conceptual metaphors shape verbal metaphor use. We argue that cognitive linguistics and psycholinguistics mostly adopt simplistic, and psychologically implausible, views of how conceptual metaphors are activated and then constrain people's comprehension of metaphoric language. But more contemporary ideas on how (...) cognitive processing unfolds over time in human experience provide better models of how conceptual metaphors shape verbal metaphor use. The implications of this newer vision of CMT are discussed, particularly in regard to methods for studying how conceptual metaphors support interpretation of linguistic metaphor. (shrink)

This book surveys the ways in which languages of different types refer to past, present, and future events and how these referents are related to the knowledge and attitudes of discourse participants. The book is the culmination of fifteen years of research by the author. Four major language types are examined in-depth: tense-based English, tense-aspect-based Polish, aspect-based Chinese, and mood-based Kalaallisut. Each contributes to a series of logical representation languages, which together define a common logical language that is argued to (...) underlie all language types. The four types differ in whether they choose to grammaticalize discourse reference to times (tense), events (aspect), and/or attitudes (mood), and how non-grammaticalized elements are inferred. The common logical language is a dynamic update logic, building on DRT and Centering Theory, but with a novel architecture—e.g. the distinction between focal vs. peripheral attention plays a key role, parallel to focal vs. peripheral vision. (shrink)

Eldred offers a remedy to the consequences of ancient Greek misconceptions of time that are also entrenched in today’s mathematized physics. Here time is spatialized as the one-dimensionally linear ‘arrow of time’ for the sake of predicting and controlling movement. But such spatialized time distorts the phenomenon of time itself. An alternative, hermeneutic-phenomenological path begins with a pre-spatial concept of time that is genuinely three-dimensional. This paves the way for recasting who we are as humans in belonging, first of all, (...) to the free openness of 3D-temporality. This belonging enables temporally 3D-vision of the psyche that empowers us to see movement at all and reconcile its inherent contradictoriness. We are then also able to conceive ourselves no longer merely as internally cogitating, self-conscious subjects, but as engaged existentially in temporally 3D-interplay, mutually estimating and esteeming who we are. This unpredictable interplay is constrained, however, by being played out in the sociating medium of thingified value, the accumulative movement of thingified value having gained the upper hand in dictating our life-movements as well as our interplay with the earth. (shrink)

The goal of perception is to infer the most plausible source of sensory stimulation. Unisensory perception of temporal order, however, appears to require no inference, since the order of events can be uniquely determined from the order in which sensory signals arrive. Here we demonstrate a novel perceptual illusion that casts doubt on this intuition: in three studies (N=607) the experienced event timings are determined by causality in real-time. Adult observers viewed a simple three-item sequence ACB, which is typically (...) remembered as ABC (Bechlivanidis & Lagnado, 2016), in line with principles of causality. When asked to indicate the time at which events B and C occurred, points of subjective simultaneity shifted so that the assumed cause B appeared earlier and the assumed effect C later, despite full attention and repeated viewings. This first demonstration of causality reversing perceived temporal order cannot be explained by post-perceptual distortion, lapsed attention, or saccades. (shrink)

Visual experience is often characterised as being essentially spatial, and auditory experience essentially temporal. But this contrast, which is based upon the temporal structure of the objects of sensory experience rather than the experiences to which they give rise, is somewhat superficial. By carefully examining the various sources of temporal variation in the chemical senses we can more clearly identify the temporal profile of the resulting smell and taste (aka flavour) experiences. This in turn suggests that (...) at least some of the objects of olfactory experience have significant temporal structure, including interactions between odorants and the body’s own sensory systems. This can help to inform our understanding not only of the metaphysics of olfaction, but the temporal structure of sensory processing and experience in other sense-modalities, including vision and audition. (shrink)

Building on Bernard Williams’ thesis about the intertwining of history and political philosophy, the essay explores how the problem of the history of dēmokratia after the late-eighteenth and over the nineteenth-century in Britain constituted a primary and critical field in which the philosophical meaning of democracy was debated. Configuring a new temporal perspective grounded in the relationship between ancient and modern democracy, historiographical works by John Gillies, William Mitford, and George Grote put forth an understanding of the concept as (...) a battlefield, involving several conflicting meanings, narratives and historical forces. This historiographical tradition highlighted the tensions underpinning the definition of democracy in the long-term temporal frame linking antiquity and modernity. So even more than contemporary philosophical and political writings, historical understanding constituted a unique concept of democracy that both concentrated and dispersed meaning; it was not just one vision of democracy, among others, but one that acquired the paradoxical power to forge some semantic stability and coherence over time, and to accentuate the threat of the concept’s break up into distinct political premises and historical moments that constituted it. (shrink)

As cognitive science, including especially cognitive neuroscience, closes in on the first realistic models of the human mind, philosophical puzzles and problems that have been conveniently postponed or ignored for generations are beginning to haunt the efforts of the scientists, confounding their vision and leading them down hopeless paths of theory. I will illustrate this claim with a brief look at several temporal phenomena which appear anomalous only because of a cognitive illusion: an illusion about the point of (...) view of the observerix. Since there is no point in the brain where "it all comes together," several compelling oversimplifications of traditional theorizing must be abandoned. (shrink)

Visual systems first evolved not to enable animals to perceive the world, but to provide distal sensory control of their movements. Conscious sight is a relatively recent invention, but its emergence has enabled organisms such as humans and other primates to carry out complex cognitive operations on a detailed perceptual representation of the world. The two streams of visual processing that have been identified in the primate cerebral cortex are a reflection of these two functions of vision. The dorsal (...) 'action' stream projecting from early visual areas to the posterior parietal cortex mediates the visual control of skilled motor acts. The ventral 'perceptual' stream projecting from early visual areas to the temporal lobe provides a perceptual experience of the world beyond our bodies. Both streams work together in the production of adaptive behavior. (shrink)

What is the most important reason for using Computer Vision methods in humanities research? In this article, I argue that the use of numerical representation and data analysis methods offers a new language for describing cultural artifacts, experiences and dynamics. The human languages such as English or Russian that developed rather recently in human evolution are not good at capturing analog properties of human sensorial and cultural experiences. These limitations become particularly worrying if we want to compare thousands, millions (...) or billions of artifacts—i.e. to study contemporary media and cultures at their new twenty-first century scale. When we instead use numerical measurements of image properties standard in Computer Vision, we can better capture details of a single artifact as well as visual differences between a number of artifacts–even if they are very small. The examples of visual dimensions that numbers can capture better then languages include color, shape, texture, contours, composition, and visual characteristics of represented faces, bodies and objects. The methods of finding structures and relationships in large numerical datasets developed in statistics and machine learning allow us to extend this analysis to very big datasets of cultural objects. Equally importantly, numerical image features used in Computer Vision also give us a new language to represent gradual and continuous temporal changes—something which natural languages are also bad at. This applies to both single artworks such as a film or a dance piece and also to changes in visual characteristics in millions of artifacts over decades or centuries. (shrink)

Este artículo presenta un acercamiento al cuento “El Aleph” de Jorge Luis Borges a partir del tema de los universos paralelos desde dos perspectivas, el concepto matemático de transinfinito y la observación de lo cotidiano. Siguiendo la jerarquía del multiverso de Max Tegmark, se propone extender su contenido filosófico definiendo cómo “El Aleph” argumenta la idea de multiverso. Por un lado, el cuento de Borges es capaz de reflejar el estado espacio-temporal abigarrado de otros universos simultáneos que coexisten con (...) el propio y, por otro lado, puede comprimir toda esa complejidad en su mínima representación, el punto. Este colapso de lo complejo a lo simple en el cuento de Borges demuestra que la percepción de otras realidades, de otros universos, yace en la aparente insignificancia de lo cotidiano. (shrink)

Resumen: Este artículo presenta un acercamiento al cuento “El Aleph” de Jorge Luis Borges a partir del tema de los universos paralelos desde dos perspectivas, el concepto matemático de transinfinito y la observación de lo cotidiano. Siguiendo la jerarquía del multiverso de Max Tegmark, se propone extender su contenido filosófico definiendo cómo “El Aleph” argumenta la idea de multiverso. Por un lado, el cuento de Borges es capaz de reflejar el estado espacio-temporal abigarrado de otros universos simultáneos que coexisten (...) con el propio y, por otro lado, puede comprimir toda esa complejidad en su mínima representación, el punto. Este colapso de lo complejo a lo simple en el cuento de Borges demuestra que la percepción de otras realidades, de otros universos, yace en la aparente insignificancia de lo cotidiano.: This article presents an approach to the short story “The Aleph” by Jorge Luis Borges based on the parallel universes subject from two perspectives, the mathematical concept of transfinite, and the everyday life observation. Following Max Tegmark’s hierarchy of the multiverse, it is set out to extend its philosophical content by defining how “The Aleph” argues the idea of the multiverse. On the one hand, this short story is capable of reflecting the motley spatio-temporal state of other simultaneous coexisting universes and, on the other hand, it can compress all its complexity into the simplest figure for its representation, the point. This collapse from the complex to the simple in Borges’ short story shows that the perception of other realities, of other universes, lies in the apparent insignificance of the everyday life. (shrink)

For over a decade now we live under an economic crisis, its metastases, and its effects. Since the turn of the century, we live under recurring security crises and state attempts to prevent them. This article examines the temporal horizons of the strategies the neoliberal state employs to combat the spectre of crisis in its two quintessential fields of action: the economy and security. It notes a pronounced contrast: whereas security strategy is pre-emptive, economic strategy is reactive. These two (...) opposite strategies aim to the same result: to cancel the future. Security strategy seeks to pre-emptively neutralise the possibility of non-liberal politics, canceling the possibility of political change. By not intervening proactively, economic strategy seeks to guarantee that the economy will remain as it is, averting economic change. This attempt of the state to cancel the future is symptomatic of a malaise affecting the capitalist class. Having fully conquered social resistance, the capitalist class tries to render the moment of its triumph permanent, fixing society in an eternal present. For the first time in its history, the capitalist class has neither vision nor appetite for the future. This signals its hegemonic implosion. (shrink)

Conventional imagers and almost all vision processes use and rely on theories that are based on the principle of static image-frames. A frame is a 2D matrix that represents the spatial locations of intensities of a scene projected on the imager. The notion of a frame itself is so embedded in machine vision, that it is usually taken for granted that this is how biological systems store light information. This paper presents a biosinpired event-based image formation principle, which (...) output data rely on an asynchronous acquisition process. The generated information is stored in temporal volumes, which size and information depend only on the dynamic content of observed scenes. Practical analysis of such information will shows that the processing of visual information can only be based on a semiotic process. The paper also provides a general definition of the notion of visual features as the interpretation of signs according to different possible readings of the codified visual signal. (shrink)

O’Regan and Noë’s sensorimotor approach rejects the old-fashioned view that perceptual experience in humans depends solely on the activation of internal representations. Reflecting a wealth of empirical work, for example active vision, the approach suggests that perceiving is, instead, a matter of bodily exploration of the outside environment. To this end, the approach says the perceiver must deploy knowledge of sensorimotor contingencies, the ways sense input changes with movement by the perceiver or object perceived. Clark has observed that the (...) approach faces a challenge accounting for the experience of temporal duration, since event-like properties cannot be characterised by reference to the sensory consequences of possible movements. This paper argues that the account can best be shored up by emphasising, more than Noë does, the dependence of perceptual experience, in general, on temporally extended, organismic interaction with the outside environment. The paper argues, moreover, that an ‘extensionalist’ account of temporal experience could help make sense of object experience, which is itself, plausibly, an experience of temporal duration. (shrink)

This work considers the ways in which, throughout human history, maps have defined our limits as much as charted our exploration. These images act as a kind of ghost vision – a spectral overlay of the world created and accessed as data sets, satellite imagery, and geopolitical mapping, merged in an algorithmically generated 3D mesh. This brings with it a view of the world in which complementary and competing navigational vectors collage and collide. Yet, for all its apparent hyper-modern (...) otherness, its novelty and dexterity is still oriented around and contingent upon the temporal and electromagnetic limits of our biological inheritance. (shrink)

In this paper, building on these previous works, we propose to go deeper into the understanding of crowd behavior by proposing an approach which integrates ontologi- cal models of crowd behavior and dedicated computer vision algorithms, with the aim of recognizing some targeted complex events happening in the playground from the observation of the spectator crowd behavior. In order to do that, we first propose an ontology encoding available knowledge on spectator crowd behavior, built as a spe- cialization of (...) the DOLCE foundational ontology, which allows the representation of categories belonging both to the physical and to the social realms. We then propose a simplified and tractable version of such ontology in a new temporal extension of a description logic, which is used for temporally coupling events happening on the play- ground and spectator crowd behavior. At last, computer vision algorithms provide the input information concerning what is observed on the stands and ontological reasoning delivers the output necessary to perform complex event recognition. (shrink)

GY, an extensively studied human hemianope, is aware of salient visual events in his cortically blind field but does not call this ''vision.'' To learn whether he has low-level conscious visual sensations or whether instead he has gained conscious knowledge about, or access to, visual information that does not produce a conscious phenomenal sensation, we attempted to image process a stimulus s presented to the impaired field so that when the transformed stimulus T(s) was presented to the normal hemifield (...) it would cause a sensation similar to that caused by s in the impaired field. While degradation of contrast, spatio-temporal filtering, contrast reversal, and addition of smear and random blobs all failed to match the response to a flashed bar sf, moving textures of low contrast were accepted to match the response to a moving contrast-defined bar, sm. Orientation and motion direction discrimination of the perceptually matched stimuli [sm and T(sm)] was closely similar. We suggest that the existence of a satisfactory match indicates that GY has phenomenal vision. (shrink)

Is security seen? Is security seen in images of peace and safety, or is it perceived in the troubled images of the horrors of violence and suffering? Vision has played a crucial role in shaping the modern Western preoccupation with, and prioritisation of security. Historically, security has been visually represented in a variety of ways, typically involving the depiction of its absence. In Medieval and Early Modern Europe especially, security and insecurity were presented as coterminous insofar as each represented (...) separate conditions – their shared boundary envisioned in representations of the temporal threshold separating human mortality from divine salvation. This ocular demonstration of thresholds has been heightened by the ‘war on terror’ conducted by neo-liberal states since 2003. Neoliberalism operates as a discourse of constant global circulations premised on a perpetual anticipation and pre-emption of insecurity. In the neoliberal scheme, security and insecurity are no longer coterminous, but mutually sustaining in perpetuity. In that sense, neoliberal security is ‘sight unseen’ - an uncanny presence that is not there. In the reiterated troubled images of horror amplified by the seemingly endless 'war on terror', neoliberal security operates as a terrifying visual reflex: we cannot see it but in new horrors. (shrink)

American democracy faces severe challenges today, as everyday life gathers pace, national borders become increasingly porous, and commodity culture becomes more dominant. Democracy and Vision assembles a cast of prominent political theorists to consider the problems confronting political life by reviewing, assessing, and expanding on the ideas of one of the most influential political thinkers of the past forty years, Sheldon Wolin. The book consists of three sections linked by the underlying theme of Wolin's monumental effort to define ''the (...) political'' and the conditions of democratic life. In the first, Nicholas Xenos, George Kateb, Fred Dallmayr, and Charles Taylor focus, in particular, on whether mass political participation, sustainable in times of upheaval as what Wolin aptly termed ''fugitive democracy,'' can be buoyed by political institutions during periods of stability. In the second section, Wendy Brown, Aryeh Botwinick, Melissa A. Orlie, and Anne Norton examine the relevance of Wolin's ideas to current debates about, for example, social diversity and the commercialization of culture. In the last, Stephen K. White, Kirstie M. McClure, Michael J. Shapiro, and J. Peter Euben address globalization and temporality in relation to Wolin's narrative of decline, asking, among other things, whether citizenship today must incorporate a cosmopolitan dimension. These essays--and an introduction by William Connolly that lucidly outlines Wolin's thought and the deep uncertainty about political theory in the 1960s that did much to inspire his work--offer unprecedented insights into Wolin's lament that modernity has meant the loss of the political. (shrink)

The aporias of time that Paul Ricœur identifies in the conclusion to his three-volume Time and Narrative offer a fecund starting-point from which to consider how the poetics of narrativity figures in a philosophy of the will. By setting the poetics of narrativity against the aporetics of temporality, Ricoeur highlights the narrative art’s operative power in drawing together incidents and events in answer to time’s dispersion across the present, the past, and the future. In turn, the confession of the limits (...) of narrative opens the way to a broader consideration of the idea of the unity of history in the absence of a meta-historical plot. This idea calls for a reflection on the ethical and political imperative of making freedom a reality for all. By taking the theory of freedom’s actualization as a touchstone, I argue that the vision of a reconciled humanity that for Ricœur is the intended object of the poetics of the will acquires the force of a directive idea. The capacity to refashion the real from within thus proves to be decisive for drawing out the connection between the aporetics of temporality, the poetics of narrativity, and Ricœur’s philosophical anthropology. (shrink)

Since it was first published in 2011, ‘A Manifesto for Education’ by Gert Biesta and Karl Anders Säfström has received numerous enthusiastic reviews and been hailed as providing ‘an alternative vision for education’. Such enthusiasm, however, is perhaps not purely attributable to the substance of the text but also to the form that it adopts. In this regard, I attempt to explore what the authors refer to as the ironic usage of this genre of writing in relation to its (...) message. The authors diagnose a problem in education related to the modern understanding of time, and they suggest an alternative ‘non-temporality’ in which we ‘stay in the tension between “what is” and “what is not” ’. While I appreciate the Manifesto's attempt to offer criticism based on the link between freedom and temporality in education, I take issue with aspects of their analysis. I discuss temporality and freedom through a reading of Martin Heidegger in which the concept of time in education is understood in terms of human freedom as possibility. (shrink)

This paper engages with debates around transformations in the production and circulation of images and the changes in modes of perception that these offer. Paul Virilio has argued that technological developments have produced a shift in the site of meaning‐production from the material reference space of the image to the time of visual contact by the viewer. I consider what significance these temporalities have in relation to social difference, and I develop debates around the performative to consider how the viewer (...) is constituted in visual performativity. This focus on time and performativity opens up questions of how vision may constitute the agency, intention and responsibility of the viewer. Drawing on an example of visual irony in advertising, I explore how the temporal suspension of meanings allows for a suspension of the terms of intent and responsibility. This visual performative accesses and reworks the terms of social difference and privilege in what I have called ‘retroactive intentionality’. (shrink)

Background: Continuous viewing of ambiguous patterns is characterized by wavering perception that alternates between two or more equally valid visual solutions. However, when such patterns are viewed intermittently, either by repetitive presentation or by periodic closing of the eyes, perception can become locked or "frozen" in one configuration for several minutes at a time. One aspect of this stabilization is the possible existence of a perceptual memory that persists during periods in which the ambiguous stimulus is absent. Here, we use (...) a novel paradgim of temporally interleaved ambiguous stimuli to explore the nature of this memory, with particular regard to its potential impact on perceptual organization. Results: We found that the persistence of a perceptual configuration was robust to interposed visual patterns and, further, that at least three ambiguous patterns, when interleaved in time, could undergo parallel, stable time courses. Then, using an interleaved presentation paradigm, we established that the occasional reversal in one pattern could be coupled with that of its interleaved counterpart, and that this coupling was a function of the structural similarity between the patterns. Conclusions: We postulate that the stabilization observed with repetitive presentation of ambiguous patterns can be at least partially accounted for by processes that retain a recent perceptual interpretation, and we speculate that such memory may be important in natural vision. We further propose tha the interleaved paradigm introduced here may be of great value to gauge aspects of stimulus similarity that appeal to particular mechanisms of perceptual organization. (shrink)

Our visual system can process information at both conscious and unconscious levels. Understanding the factors that control whether a stimulus reaches our awareness, and the fate of those stimuli that remain at an unconscious level, are the major challenges of brain science in the new millennium. Since its publication in 1984, Visual Masking has established itself as a classic text in the field of cognitive psychology. In the years since, there have been considerable advances in the cognitive neurosciences, and a (...) growth of interest in the topic of consciousness, and the time is ripe for a new edition of this text. Where most current approaches to the study of visual consciousness adopt a 'steady-state' view, the approach presented in this book explores its dynamic properties. This new edition uses the technique of visual masking to explore temporal aspects of conscious and unconscious processes down to a resolution in the millisecond range. The 'time slices' through conscious and unconscious vision revealed by the visual masking technique can shed light on both normal and abnormal operations in the brain. The main focus of this book is on the microgenesis of visual form and pattern perception - microgenesis referring to the processes occurring in the visual system from the time of stimulus presentation on the retinae to the time, a few hundred milliseconds later, of its registration at conscious or unconscious perceptual and behavioural levels. The book takes a highly integrative approach by presenting microgenesis within a broad context encompassing visuo-temporal phenomena, attention, and consciousness. (shrink)

Michel Weber, The Threefold Root of Temporality. Elements of Whiteheadian Organic Metaphysics, Louvain-la-Neuve, Éditions Chromatika, 2021 ; 978-2-930517-76-6, pdf 978-2-930517-77-3 ; 120 pp. ; 16 € -/- The question of the nature of time is as old as philosophy itself. Before philosophy, time was not problematized, it was a pure common-sensical matter. There were various experiences of time, and, accordingly, different words to name it. Whitehead’s solution of the temporal conundrum lies in the concept of “creative advance of nature” (...) that is systematically elucidated only in Process and Reality (1929) To understand the creative advance of nature, one needs to interpret the togetherness of its three aspects —creativity qua concrescence, efficacy qua transition, vision qua initial subjective aim—, and this provides us with the core meaning of time: (i) genuine novelty appears in the World, (ii) past events are, so to speak, ontologically memorized, and (iii) there is an upward trend in terms of “intensity” of events. These three complementary requirements refresh in their own way the Greek triple understanding of time: time is “aiôn,” lived duration (outside physical time) and destiny, but it is also “chronos,” causal time, and “kairos,” timeliness or the appropriate moment for action. -/- Michel Weber is Director of the Centre for Philosophical Practice (Brussels) and Adjunct Professor at the Department of Educational Foundations of the University of Saskatchewan. His current research program mainly addresses the Ayurvedic understanding of the anchoring of the mind in the body and of the expression of the body in the mind. (shrink)

This paper asks how to account for vulnerable integrity in the temporal dynamism of human lives without relying on a subtractive vision of integral human nature, borrowing from presumed past or future rationality and maturity, or depending on an external attribution of dignity. Illustrating the challenges with vignettes from the author’s life, it argues inductively that human integrity includes morally inviolable vulnerability to others with whom we are in interdependent relationship and without whom we cannot develop or maintain (...) our selves. Others reside at the core of our integrity, for better and for worse, and we reside at theirs. Augustine’s accounts of memory, time, and the narrative self; Whiteheadian process thought’s understanding of continuity through change; and feminist theories of narrative all provide theological and philosophical justifications for this vision of integrity. John Wall’s and Johan Brännmark’s non-foundational approaches to integrity and human rights lead us to the same conclusion without entailing theological anthropological claims, ensuring its relevance in a pluralist culture. (shrink)

Messianism is an integral component of Abrahamic faiths. Yet the emergence of the Messiah is counterbalanced by the Antichrist. Apocalyptic visions of the future in Judaism, Christianity, and Islam...

In information theory there is a fundamental principle, usually referred to as the informational “uncertainty principle”, which expresses a limitation of any information processing system (or agent) in terms of a relation between the system's response property and its inherent processing capacity. From this principle, it can be argued that a salutary strategy for dealing with conflicting information processing requirements is to adopt various complementary processes (or channels). Donald M. MacKay had attempted to relate the informational uncertainty principle to spatial (...) and temporal response properties of neurons in the mammalian visual cortex, and suggested that the spatial and the temporal aspects of such neurons are complementary. I attempt to extend his efforts and to show that the informational uncertainty principle may indeed underlie many complementary relations exhibited in human perception and cognition, such as the relation between the two principal processing streams in vision and the relation between parallel and serial processes in cognition. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:BOOK REVIEWS 265 concluding chapter (pp. 150-52), Dr. Clair deals with "Comment lire l'oeuvre du P. Thomassin," providing much guidance to anyone who wishes to avail himself of the rich resources in Thomassin's writings. From the point of view of the history of philosophy, the most interesting aspects of Thomassin's thought seem to be (1) his "Cartesianism," that is, the extent to which he early imbibed Descartes' new ideas, (...) and played a role in the fusion of the views of Augustine, B6rulle, and Descartes that developed in the Oratory, (2) his attempt to find a viable theory of the nature of Grace somewhere between Arnauld and Malebranche, and (3) his efforts to formulate a philosophy of history within an Augustinian theology; a philosophy of history that would make historical research and understanding of genuine philosophical and religious value to man. Dr. Clair's too brief discussions indicate that Thomassin was definitely influenced by reading Descartes, but also that Thomassin was much too eclectic to be a Cartesian. With regard to the problem of Grace, where the Cartesian Arnauld fought with the semi-Cartesian Malebranche, Thomassin tried deftly to maintain an Augustinian position that was not quite as rigid as that of the Jansenists, nor as moderate as that of Malebranche (though Arnauld tried to use Thomassin's erudition and authority in his battles with Malebranche). Unfortunately Dr. Clair does not try to evaluate whether Thomassin really found a coherent and theologically acceptable middle-ground between the two antagonists. On the subject of the philosophy of history, Thomassin's views seem most interesting (at least to this reviewer). The short text that Dr. Clair includes on the difference of history from science reveals Thomassin trying to show that the investigation and comprehension of temporal particulars can have significant value for man's understanding of man and that there can be genuine certainty about past facts. Thomassin was writing in the period when modern historical method and outlook were born, when historical study changed from chronicles and ammunition in theological and political disputes to a basic way of understanding human nature. Those concerned with the role of Bayle, Hume, Gibbon, and Vico in developing an historical methodology and a rationale for art historical approach to human problems might well profit from considering Thomassin's writings in this area, and the influence they had on modern historiography and philosophies of history. Dr. Clair's short work certainly helps in filling a lacuna in our picture of the seventeenth century. It also makes one wish he had done more, and had provided a "complete" study of Thomassin's thought and influence. That, perhaps, is one of the major purposes of this new series, in that it will lead scholars to looking into the more hidden portions of the period, and will lead them to filling out in more detail and depth the history of the rise and fall of modern philosophy. It is to be hoped that future volumes in this series will continue to whet our appetites for further investigations, and will transform more of the names we run across into figures about whom we have some information and from whom we can still learn something. RICHARD H. POPKIN University of California, San Diego Berkeley's Theory of Vision..4 Critical Examination of Bishop Berkeley's Essay towards a New Theory of Vision. By D. M. Armstrong. (Melbourne: University Press; London and N. Y.: Cambridge University Press, 1960. Pp. viii + 106. $4.50). Berkeley's brilliant though disconcerting Essay has been rather neglected for some time, except for the able studies of C. M. Turbayne of Rochester University (N. Y.). Armstrong's book is welcome for that reason, also for its freshness, clearness, and rich brevity. A1- 266 HISTORY OF PHILOSOPHY though a slim volume, it is packed with close yet lucid argumentation, conducted throughout with good manners, and throughout exploratory, clarifying problems, exposing logical and empirical difficulties, not grandly telling us what the truth is but leaving us in a better position to carry on the exploration ourselves. It is an exemplary piece of philosophical discussion. He clears his ground by noting that the Essay, so far as... (shrink)

Slavoj Žižek proposed an ethic of respect for the fantasy space of another. Under "fantasy" Jacques Lacan borrowed from Claude Lévi-Strauss the notion of a "private myth." But this fantasy is, Žižek says, illusionary, fragile, and helpless. Fantasy is the way everyone, each in a particular way, conceals the impasse of his desire. Psychoanalytic practice can be criticized as a radical destitution of the fundamental fantasy of the patient. The author argues that what Žižek analyzes as fantasy is a misfire (...) of vision, and could only be recognized in a subject where visions are possible. But visions-the visions of visionaries and seers, and the visions of youth-have to be envisioned dynamically in their activity of formulating, shaping, and intensifying one's insights and one's feelings. Žižek assumes that the forces mobilized by drive, which takes hold of an organ and compulsively makes it repeat the same failed gesture, aim at the excessive and monstrous paroxysm of pleasure in pain, which is jouissance. The author argues that that jouissance can never appear as something possible in the organism, not because it would be a death drive for a finite and temporal organism, but because it is a by-product and not a goal. (shrink)

This new edition uses the technique of visual masking to explore temporal aspects of conscious and unconscious processes down to a resolution in the...

In light of the summer 2020 protests and their subsequent backlash, questions about the prospective timeline for achieving a racially just society have taken on renewed significance. This article investigates Du Bois’s writings between 1920 and 1940 as a lens through which to examine the temporality of social change. I argue that Du Bois’s turn to the role of white unreason explains the dual temporality of his political vision and the dual strategies that ensue. According to Du Bois, white (...) supremacy is upheld not only by ignorance, but also by white unreason, reproduced through generations of institutional conditioning. Du Bois therefore turns to propaganda for transforming white unreason, thereby making a racially just society possible. But because the transformation of white unreason through propaganda is a slow process, Du Bois argues that Black Americans must ensure their survival through voluntary self-segregation. By presenting us with a framework of social change, Du Bois models how advocates of racial justice might navigate defeat without devolving into defeatism. (shrink)

The aim of this article is to clarify how Husserl applies his formal ontology to the constitution of immanent temporality. By doing so, my objective is to unravel the relationships between the phases of this temporality that make up a unit—that is, the relationship between protentions and retentions and a proto-impression that gives rise to the temporal moment “now” in an experience of the immanent consciousness. In connection with this reconstruction, I will attempt to clarify Husserl’s definition of time (...) as a “one-dimensional orthoid multiplicity,” the roots of which lie in Riemann’s work. I interpret Husserl’s description as a model for the description of the phenomenon of time. Its nature as a model seems to unfold with the problem of the time diagram. Which diagram best represents the constitution of immanent temporality? Larrabee has discussed this issue, and I propose that the best interpretation of the diagram is to consider it as applying to a spherical surface rather than a flat one. This interpretation allows us to account for the multiple relationships among presentations, memories, and other presentifications in an empirically appropriate manner while at the same time providing us with another vision of Husserl’s consciousness, which allows us to reconsider the relationship between subjectivity and objectivity. (shrink)

Each of our sensory modalities—vision, touch, taste, etc.—works on a slightly different timescale, with differing temporal resolutions and processing lag. This raises the question of how, or indeed whether, these sensory streams are co-ordinated or ‘bound’ into a coherent multisensory experience of the perceptual ‘now’. In this paper I evaluate one account of how temporal binding is achieved: the temporal windows hypothesis, concluding that, in its simplest form, this hypothesis is inadequate to capture a variety of (...) multisensory phenomena. Rather, the evidence suggests the existence of a more complex temporal structure in which multiple overlapping windows support distinct functional mechanisms. To aid in the precise formulation of such views, I propose a taxonomy of temporal window types and their characteristics that in turn suggests promising avenues for future empirical and philosophical research. I conclude by examining some philosophical implications of multi-window models for the metaphysics of perception and perceptual experience more generally. (shrink)

The processes of constructing meaning in digital database environments entail a paradigm shift from previous models of audio-visual communication. Media emerging from the Electro-mechanical era (film/TV/video) present fixed spatio-temporal linearity and material conditions which objectify and render passive viewer and process. The problematic aspects of cinematic communication were addressed by Latin American filmmakers of the “Third Cinema” movement. Their concerns and approach presaged and assisted an understanding of the radical redefinition of audio-visual communication possible with digital databases. The conceptual (...) and aesthetic aspirations of “Third Cinema” artists such as Julio Garcia Espinosa and Fernando Solanas were ultimately contradictory to linear media and find their fitting medium in digital modular construction. The materiality of database expression lacks an intrinsic temporal or spatial state and permits a more dynamic and multidirectional set of power relationships between author/s, piece, viewer/s. Other important referents for contextualising database art are modern art practitioners that rejected linear representational space and fractured the centrality of authorship. The author's own work, “...two, three, many Guevaras,” an exploratory database environment, embraces the redefinition of process as artistic expression, the empowerment of interacting generative forces, and serves to illustrate the revolutionary potential of the new media. (shrink)

The aim of this essay is to give a high-level overview of Irenaeus’s beatific vision, and to suggest that for him, the beatific vision has a temporal dimension (now and future) and a dimension of degree (lesser now, greater in the future). His beatific vision is witnessed as it intersects with at least four main ideas in his writing—the Trinity, anthropology, resurrection, and his eschatology. Irenaeus famously held that ‘the glory of God is living man, and (...) the life of man is the vision of God’ (AH 4.20.7), which speaks to the reality of seeing God in the present, but he could also look forward in anticipation to beholding the face of God in the resurrected body in the new creation. What made the latter possible is the gradual beholding of God in the present that makes one prepared to see God’s glory in the future. Additionally, the visio Dei is Trinitarian. We behold God in Christ, since God the Father is invisible, and it is the Holy Spirit who prepares us incrementally to see God. (shrink)

Asymmetric distribution of function between the cerebral hemispheres has been widely investigated in the auditory modality. The current approach borrows heavily from visual local–global research in an attempt to determine whether, as in vision, local–global auditory processing is lateralised. In vision, lateralised local–global processing likely relies on spatial frequency information. Drawing analogies between visual spatial frequency and auditory dimensions, two sets of auditory stimuli were developed. In the high–low stimulus set we manipulate frequency information, and in the fast–slow (...) stimulus set we manipulate temporal information. The fast–slow stimuli additionally mimic visual hierarchical stimulus structure, in which the arrangement of local patterns determines the global pattern. Unlike previous auditory stimuli, the current stimulus sets contain the experimental flexibility of visual local–global hierarchical stimuli allowing independent manipulation of structural levels. Previous findings of frequency and temporal range priming were replicated. Additionally, by presenting stimuli monaurally, we found that priming of frequency ranges (but not temporal ranges) was found to vary by ear, supporting the contention that the hemispheres asymmetrically retain traces of prior frequency processing. These results contribute to the extensive literature revealing cerebral asymmetries for the processing of frequency information, and extend those results to the realm of priming. (shrink)

Empirical and theoretical foundations for the study of the temporal dynamics of mechanisms contributing to unconscious and conscious processing of visual information; from computational, psychological, neuropsychological, and neurophysiological perspectives.

The characteristic temporal relationship between actions and their sensory outcomes allows us to distinguish self- from externally generated sensory events. However, the complex sensory environment can cause transient delays between action and outcome calling for flexible recalibration of predicted sensorimotor timing. Since the neural underpinnings of this process are largely unknown this study investigated the involvement of the cerebellum by means of cerebellar transcranial direct current stimulation. While receiving anodal, cathodal, dual-hemisphere or sham ctDCS, in an adaptation phase, participants (...) were exposed to constant delays of 150 ms between actively or passively generated button presses and visual sensory outcomes. Recalibration in the same and in another sensory modality was assessed in a subsequent test phase during which variable delays between button press and visual or auditory outcome had to be detected. Results indicated that temporal recalibration occurred in audition after anodal ctDCS while it was absent in vision. As the adaptation modality was visual, effects in audition suggest that recalibration occurred on a supra-modal level. In active conditions, anodal ctDCS improved sensorimotor recalibration at the delay level closest to the adaptation delay, suggesting a precise cerebellar-dependent temporal recalibration mechanism. In passive conditions, the facilitation of inter-sensory recalibration by anodal ctDCS was overall stronger and tuned to larger delays. These findings point to a role of the cerebellum in supra-modal temporal recalibration across sensorimotor and perceptual domains, but the differential manifestation of the effect across delay levels in active and passive conditions points to differences in the underlying mechanisms depending on the availability of action-based predictions. Furthermore, these results suggest that anodal ctDCS can be a promising tool for facilitating effects of temporal recalibration in sensorimotor and inter-sensory contexts. (shrink)

In this essay, I draw on Henri Bergson and Maurice Merleau-Ponty to interrogate what philosophy is and how it can continue to think. Though my answer is not reducible to the views of either philosopher, what joins them is an attempt to elaborate philosophy as a different way of seeing. In this light, I propose a view of philosophy as prosthesis—as a means and a way for seeing differently. Rather than a simple tool, philosophy as prosthesis is a transformative supplement, (...) one that our bodily perception calls for and wherein that perception is recast. Rather than a fixed or assured view, this prosthesis holds open the interval in which thinking can take place. Philosophy, I argue, must wait. It sees and thinks hesitatingly, for the temporality it inscribes is not a foreseeable development but the unfolding of life as tendency, as that which creates its own possibility as it comes into existence. (shrink)