We are even less aware of our internal organs and the physiological processes that keep us alive. In this fascinating work, Drew Leder examines all the ways in which the body is absent—forgotten, alien, uncontrollable, obscured.

The following two questions are addressed: to what extent and in what sense are concepts of consciousness subject to plasticity? And what is the relation between brain plasticity and phenomenal consciousness in particular? To answer these questions I discuss the extension thesis of the mind and also take advantage of a number of results from experimental brain science that demonstrate the brain's plasticity with respect to the processing of sensory information and associated qualitative expression. Interpretations of these results in the (...) hands of some researchers within the field of 'embodied cognition' are drawn upon. (shrink)

Sensory substitution devices provide through an unusual sensory modality (the substituting modality, e.g., audition) access to features of the world that are normally accessed through another sensory modality (the substituted modality, e.g., vision). In this article, we address the question of which sensory modality the acquired perception belongs to. We have recourse to the four traditional criteria that have been used to define sensory modalities: sensory organ, stimuli, properties, and qualitative experience (Grice, 1962), to which we have added the criteria (...) of behavioral equivalence (Morgan, 1977), dedication (Keeley, 2002), and sensorimotor equivalence (O’Regan & Noe¨, 2001). We discuss which of them are fulfilled by perception through sensory substitution devices and whether this favors the view that perception belongs to the substituting or to the substituted modality. Though the application of a number of criteria might be taken to point to the conclusion that perception with a sensory substitution device belongs to the substituted modality, we argue that the evidence leads to an alternative view on sensory substitution. According to this view, the experience after sensory substitution is a transformation, extension, or augmentation of our perceptual capacities, rather than being something equivalent or reducible to an already existing sensory modality. We develop this view by comparing sensory substitution devices to other ‘‘mind-enhancing tools’’ such as pen and paper, sketchpads, or calculators. An analysis of sensory substitution in terms of mind-enhancing tools unveils it as a thoroughly transforming perceptual experience and as giving rise to a novel form of perceptual interaction with the environment. (shrink)

This article argues for a more rigorous distinction between body extensions on the one hand and incorporation of non-bodily objects into the body on the other hand. Real re-embodiment would be a matter of taking things (most often technologies) into the body, i.e. of incorporation of non-bodily items into the body. This, however, is a difficult process often limited by a number of conditions of possibility that are absent in the case of ‘mere’ body extensions. Three categories are discussed: limb (...) extensions/prostheses, perceptual extensions/prostheses and cognitive extensions/prostheses. For each category, a distinction between extensions and incorporations is proposed, and the conditions of possibility for real incorporation are discussed. These conditions of possibility differ in each category, but in general they ask for radical or fundamental alterations not only in the motor and/or sensory or cognitive constitution of a human subject, but also in his or her subjective experience. (shrink)

In this report, the phenomenology of two blind users of a sensory substitution device – “The vOICe” – that converts visual images to auditory signals is described. The users both report detailed visual phenomenology that developed within months of immersive use and has continued to evolve over a period of years. This visual phenomenology, although triggered through use of The vOICe, is likely to depend not only on online visualization of the auditory signal but also on the users’ previous (albeit (...) distant) experience of veridical vision (e.g. knowledge of shapes and visual perspective). Once established, the sensory substitution mapping between the auditory and visual domains is not confined to when the device is worn and, thus, may constitute an example of acquired synaesthesia. (shrink)

At the beginning of Western philosophy, Aristotle contrasted made objects, which did not have the source of their own production within themselves, with beings formed by nature. This distinction persisted until Marx, who conceived of the possibility of an evolution of the technical object. This philosophy developed while industrialisation was in the process of overthrowing the contemporary order of social organisation, which highlighted technology's new place in philosophical enquiry. Bernard Stiegler goes back to the beginning of Western philosophy and revises (...) the Aristotelian assessment, developing a complex argument whereby the technical object can be seen as having an essential, distinctive temporality and dynamic of its own. The author engages the ideas of Rousseau, Husserl, and Heidegger, the paleo-ontologist Leroi-Gourhan, the anthropologists Vernant and Detienne, the sociologists Weber and Habermas, and the systems analysts Maturana and Varela. (shrink)

Challenging and rewarding in equal measure, _Phenomenology of Perception_ is Merleau-Ponty's most famous work. Impressive in both scope and imagination, it uses the example of perception to return the body to the forefront of philosophy for the first time since Plato. Drawing on case studies such as brain-damaged patients from the First World War, Merleau-Ponty brilliantly shows how the body plays a crucial role not only in perception but in speech, sexuality and our relation to others.

Challenging and rewarding in equal measure, _Phenomenology of Perception_ is Merleau-Ponty's most famous work. Impressive in both scope and imagination, it uses the example of perception to return the _body_ to the forefront of philosophy for the first time since Plato. Drawing on case studies such as brain-damaged patients from the First World War, Merleau-Ponty brilliantly shows how the body plays a crucial role not only in perception but in speech, sexuality and our relation to others. Perhaps above all, Merleau-Ponty's (...) insights about the embodied mind are a bold and refreshing challenge to the new era of virtual reality and artificial intelligence, as scientists and psychologists discover the centrality of the body to mind and intelligence. (shrink)

First published in 1945, Maurice Merleau-Ponty’s monumental _Phénoménologie de la perception _signalled the arrival of a major new philosophical and intellectual voice in post-war Europe. Breaking with the prevailing picture of existentialism and phenomenology at the time, it has become one of the landmark works of twentieth-century thought. This new translation, the first for over fifty years, makes this classic work of philosophy available to a new generation of readers. _Phenomenology of Perception _stands in the great phenomenological tradition of Husserl, (...) Heidegger, and Sartre. Yet Merleau-Ponty’s contribution is decisive, as he brings this tradition and other philosophical predecessors, particularly Descartes and Kant, to confront a neglected dimension of our experience: the lived body and the phenomenal world. Charting a bold course between the reductionism of science on the one hand and "intellectualism" on the other, Merleau-Ponty argues that we should regard the body not as a mere biological or physical unit, but as the body which structures one’s situation and experience within the world. Merleau-Ponty enriches his classic work with engaging studies of famous cases in the history of psychology and neurology as well as phenomena that continue to draw our attention, such as phantom limb syndrome, synaesthesia, and hallucination. This new translation includes many helpful features such as the reintroduction of Merleau-Ponty’s discursive Table of Contents as subtitles into the body of the text, a comprehensive Translator’s Introduction to its main themes, essential notes explaining key terms of translation, an extensive Index, and an important updating of Merleau-Ponty’s references to now available English translations. Also included is a new foreword by Taylor Carman and an introduction to Merleau-Ponty_ _by Claude Lefort. Translated by Donald A. Landes. (shrink)

How the Body Shapes the Mind is an interdisciplinary work that addresses philosophical questions by appealing to evidence found in experimental psychology, neuroscience, studies of pathologies, and developmental psychology. There is a growing consensus across these disciplines that the contribution of embodiment to cognition is inescapable. Because this insight has been developed across a variety of disciplines, however, there is still a need to develop a common vocabulary that is capable of integrating discussions of brain mechanisms in neuroscience, behavioural expressions (...) in psychology, design concerns in artificial intelligence and robotics, and debates about embodied experience in the phenomenology and philosophy of mind. Shaun Gallagher's book aims to contribute to the formulation of that common vocabulary and to develop a conceptual framework that will avoid both the overly reductionistic approaches that explain everything in terms of bottom-up neuronal mechanisms, and inflationistic approaches that explain everything in terms of Cartesian, top-down cognitive states. Gallagher pursues two basic sets of questions. The first set consists of questions about the phenomenal aspects of the structure of experience, and specifically the relatively regular and constant features that we find in the content of our experience. If throughout conscious experience there is a constant reference to one's own body, even if this is a recessive or marginal awareness, then that reference constitutes a structural feature of the phenomenal field of consciousness, part of a framework that is likely to determine or influence all other aspects of experience. The second set of questions concerns aspects of the structure of experience that are more hidden, those that may be more difficult to get at because they happen before we know it. They do not normally enter into the content of experience in an explicit way, and are often inaccessible to reflective consciousness. To what extent, and in what ways, are consciousness and cognitive processes, which include experiences related to perception, memory, imagination, belief, judgement, and so forth, shaped or structured by the fact that they are embodied in this way? (shrink)

As biotechnology defines the new millennium, genetic codes and computer codes increasingly merge-life understood as data, flesh rendered programmable. Where this trend will take us, and what it might mean, is what concerns Eugene Thacker in this timely book, a penetrating look into the intersection of molecular biology and computer science in our day and its likely ramifications for the future. Integrating approaches from science and media studies, Biomedia is a critical analysis of research fields that explore relationships between biologies (...) and technologies, between genetic and computer "codes." In doing so, the book looks beyond the familiar examples of cloning, genetic engineering, and gene therapy-fields based on the centrality of DNA or genes-to emerging fields in which "life" is often understood as "information." Focusing especially on interactions between genetic and computer codes, or between "life" and "information," Thacker shows how each kind of "body" produced-from biochip to DNA computer-demonstrates how molecular biology and computer science are interwoven to provide unique means of understanding and controlling living matter. Throughout, Thacker provides in-depth accounts of theoretical issues implicit in biotechnical artifacts-issues that arise in the fields of bioinformatics, proteomics, systems biology, and biocomputing. Research in biotechnology, Biomedia suggests, flouts our assumptions about the division between biological and technological systems. New ways of thinking about this division are needed if we are to understand the cultural, social, and philosophical dimensions of such research, and this book marks a significant advance in the coming intellectualrevolution. Eugene Thacker is assistant professor of new media in the School of Literature, Communication, and Culture at the Georgia Institute of Technology. His writings on the social and cultural aspects of biotechnology and biomedicine have been published and anthologized widely and translated into a dozen languages. (shrink)

A new, definitive translation of Heidegger's most important work.