A serious crisis is identified in theories of neurocomputation, marked by a persistent disparity between the phenomenological or experiential account of visual perception and the neurophysiological level of description of the visual system. In particular, conventional concepts of neural processing offer no explanation for the holistic global aspects of perception identified by Gestalt theory. The problem is paradigmatic and can be traced to contemporary concepts of the functional role of the neural cell, known as the Neuron Doctrine. In the absence (...) of an alternative neurophysiologically plausible model, I propose a perceptual modeling approach, to model the percept as experienced subjectively, rather than modeling the objective neurophysiological state of the visual system that supposedly subserves that experience. A Gestalt Bubble model is presented to demonstrate how the elusive Gestalt principles of emergence, reification, and invariance can be expressed in a quantitative model of the subjective experience of visual consciousness. That model in turn reveals a unique computational strategy underlying visual processing, which is unlike any algorithm devised by man, and certainly unlike the atomistic feed-forward model of neurocomputation offered by the Neuron Doctrine paradigm. The perceptual modeling approach reveals the primary function of perception as that of generating a fully spatial virtual-reality replica of the external world in an internal representation. The common objections to this picture-in-the-head concept of perceptual representation are shown to be ill founded. Key Words: brain-anchored; Cartesian theatre; consciousness; emergence; extrinsic constraints; filling-in; Gestalt; homunculus; indirect realism; intrinsic constraints; invariance; isomorphism; multistability; objective phenomenology; perceptual modeling; perspective; phenomenology; psychophysical parallelism; psychophysical postulate; qualia; reification; representationalism; structural coherence. (shrink)

The World In Your Head: A Gestalt View of the Mechanism of Conscious Experience represents a bold assault on one of the greatest unsolved mysteries in science: the nature of consciousness and the human mind. Rather than examining the brain and nervous system to see what they tell us about the mind, this book begins with an examination of conscious experience to see what it can tell us about the brain. Through this analysis, the first and most obvious observation is (...) that consciousness appears as a volumetric spatial void, containing colored objects and surfaces. This reveals that the representation in the brain takes the form of an explicit volumetric spatial model of external reality. Therefore, the world we see around us is not the real world itself, but merely a miniature virtual-reality replica of that world in an internal representation. In fact, the phenomena of dreams and hallucinations clearly demonstrate the capacity of the brain to construct complete virtual worlds even in the absence of sensory input. Perception is somewhat like a guided hallucination, based on sensory stimulation. This insight allows us to examine the world of visual experience not as scientists exploring the external world, but as perceptual scientists examining a rich and complex internal representation. This unique approach to investigating mental function has implications in a wide variety of related fields, including the nature of language and abstract thought, and motor control and behavior. It also has implications to the world of music, art, and dance, showing how the patterns of regularity and periodicity in space and time--apparent in those aesthetic domains--reflect the periodic basis set of the underlying harmonic resonance representation in the brain. (shrink)

The Gestalt principle of isomorphism reveals the primacy of subjective experience as a valid source of evidence for the information encoded neurophysiologically. This theory invalidates the abstractionist view that the neurophysiological representation can be of lower dimensionality than the percept to which it gives rise.

The very idea of a retinal pattern-sensation that can be impressed on the neural tissue of the brain is a misconception, for the neural pattern never even existed in the retinal mosaic. There can be no anatomical engram in the brain if there was no anatomical image in the retina. The retina jerks about. It has a rapid tremor. It even has a gap in it (the blind spot). It is a scintillation, not an image. An engram impressed on the (...) brain would have to be divided into two changing parts in the two halves of the brain, which is impossible. The whole idea stems from the persistent myth that there has to be something in the brain that is visible, and from Johannes Mueller's assumption that the nerves telegraph messages to the brain. (shrink)

To avoid endless and futile debate, critics of an alternative paradigmatic hypothesis cannot simply state their own paradigmatic assumptions as if they were plain fact while dismissing those of the opposition as self-evidently absurd, because it is exactly those initial assumptions that are brought into question by the paradigmatic proposal. Perceived incredibility is no valid ground for rejection of a paradigm whose alternatives are at least equally incredible, and arguably more so.

Neurophysiological investigations of the visual system by way of single-cell recordings have revealed a hierarchical architecture in which lower level areas, such as the primary visual cortex, contain cells that respond to simple features, while higher level areas contain cells that respond to higher order features apparently composed of combinations of lower level features. This architecture seems to suggest a feed-forward processing strategy in which visual information progresses from lower to higher visual areas. However there is other evidence, both neurophysiological (...) and phenomenal, that suggests a more parallel processing strategy in biological vision, in which top-down feedback plays a significant role. In fact Gestalt theory suggests that visual perception involves a process of emergence, i.e. a dynamic relaxation of multiple constraints throughout the system simultaneously, so that the final percept represents a stable state, or energy minimum of the dynamic system as a whole. A Multi-Level Reciprocal Feedback (MLRF) model is proposed to resolve the apparently contradictory concepts, by proposing a hierarchical visual architecture whose different levels are connected by bi-directional feed-forward and feedback pathways, where the computational transformation performed by the feedback pathway between levels in the hiararchy is a kind of inverse of the transformation performed by the corresponding feed-forward processing stream. This alternative paradigm of perceptual computation accounts in general terms for a number of visual illusory effects, and offers a computational specification for the generative, or constructive aspect of perceptual processing revealed by Gestalt theory. (shrink)

Psychology was originally formulated as the science of the _psyche_, i.e. the subjective side of the mind / brain barrier. However time and again it has been diverted from this objective in the supposed interest of scientific rigor. The Behaviorists proposed to transform psychology to a science of behavior, and today the Neuroreductionists propose to transform it to a science of neurophysiology. In the process they attempt to deny the very existence of conscious experience as valid object of scientific scrutiny. (...) However the subjective conscious experience is a primary source of evidence for the nature of the representation in the brain. I propose a quantitative phenomenolgy to express the dimensions of conscious experience in information theoretic terms. This approach leads to interesting observations of the properties of phenomenal perspective, that clearly reveal the phenomenal world as an internal rather than external entity. (shrink)

Aspects of an example of simulated shared subjectivity can be used both to support Steven Lehar's remarks on embodied percipients and to triangulate in a novel way the so-called “hard problem” of consciousness which Lehar wishes to “sidestep,” but which, given his other contentions regarding emergent holism, raises questions about whether he has been able or willing to do so.

Review of Wolfgang Metzger, Laws of Seeing, trans. Lothar Spillman, Steven Lehar, Mimsey Stromeyer, and Michael Wertheimer. MIT Press, 2006; paperback, 2009. Pp. xxv+203. £18.95 PB. Original German edition published in 1936.

Drawing upon research in philosophical logic, linguistics and cognitive science, this study explores how our ability to use and understand language depends upon our capacity to keep track of complex features of the contexts in which we converse.

Steven Crowell has been for many years a leading voice in debates on twentieth-century European philosophy. This volume presents thirteen recent essays that together provide a systematic account of the relation between meaningful experience and responsiveness to norms. They argue for a new understanding of the philosophical importance of phenomenology, taking the work of Husserl and Heidegger as exemplary, and introducing a conception of phenomenology broad enough to encompass the practices of both philosophers. Crowell discusses Husserl's analyses of first-person (...) authority, the semantics of conscious experience, the structure of perceptual content, and the embodied subject, and shows how Heidegger's interpretation of the self addresses problems in Husserl's approach to the normative structure of meaning. His volume will be valuable for upper-level students and scholars interested in phenomenological approaches to philosophical questions in both the European and the analytic traditions. (shrink)

Plato Plato (427-347 BC) is surely the most famous of all philosophers. Little is known of his early life, except that he was born into a noble Athenian ...

Ce livre presente une investigation critique de la science generale de l'etre, instituee par Aristote au titre de la science de l'etant en tant qu'etant. L'auteur met en lumiere ce qu'est l'etre pour Aristote, ce que signifie precisement le type d'unite de ses significations multiples, et quelles sont les structures, principes et concepts epistemologiques par lesquels le reel peut etre explique dans son ensemble. L'originalite aristotelicienne qui se revele dans son apprehension horizontale du reel, est a la fois responsable de (...) son naufrage historique dans l'ocean dominant des pensees hierarchisantes, et de son renouveau axtremement stimulant pour la pensee actuelle. (shrink)

What are the inherent claims that lie at the core of religion? Which of them are defensible by reason, and which are not? Potential answers to these questions and more, from influential philosophers past and present, may be found in this short book edited by Steven M. Cahn. Featuring fifty-two classic and contemporary readings, Exploring Philosophy of Religion: Text and Readings is a topically-organized anthology that presents broad coverage of seven major areas in the philosophy of religion - the (...) concept of God, the existence of God, religious language, miracles and mysticism, belief in God, resurrection and immortality, and religious pluralism - in a clear and accessible format. With guiding introductory material from Professor Cahn, each of the readings has been carefully selected and edited for maximum clarity and comprehensiveness; only the most essential material is included. To further foster understanding, the text also features an appendix consisting of Professor Cahn's monograph, God, Reason, and Religion, which provides a synthesis and interpretation of the crucial issues raised throughout the readings. (shrink)

A study both of the aims of education and the appropriate means of achieving those aims. It is suitable for courses in philosophy of education, foundations of education and the history of ideas.

Explores the basic forms of responsibility that we willingly assume and the collaborative fulfillment that we find in each.

This is the first detailed study to explore the little-understood notions of "knowing who someone is," "knowing a person's identity," and related locutions. It locates these notions within the context of a general theory of believing and a semantical theory of belief- and knowledge-ascriptions.The books's main contention is that what one knows, when one knows who someone is, is not normally an identity in the numerical sense of "a = b," but rather a certain sort of predication to know who (...) someone is is just to know that that person is F, where "F" is a predicate that is "important," in a technical sense defined by the authors, for the purposes determined by context. Their book offers a rigorous formal semantics for ascriptions of knowing and of knowing-who in particular, solving such well-known problems and paradoxes as Kripke's Puzzle, and Quines difficulties with de re belief, along the way.The authors apply their analysis to each of several important issues in philosophy of language, philosophy of mind, and ethical theory in which the previously unexamined notion of "knowing who" has loomed large-the mechanics of linguistic referring, the foundations of epistemic logic, problems of self-knowledge and self-regarding belief, universalizability and "Golden Rule" arguments in ethics, and moral "personalism" versus "impartialism."Stephen Boër is Professor of Philosophy at the Ohio State University. William Lycan is Professor of Philosophy at the University of North Carolina and author of Logical Form in Natural Language. A Bradford Book. (shrink)

An introduction to and critique of the latest trends in critical theory.

Winner of 2002 Edward Goodwin Ballard Prize In a penetrating and lucid discussion of the enigmatic relationship between the work of Edmund Husserl and Martin Heidegger, Steven Galt Crowell proposes that the distinguishing feature of twentieth-century philosophy is not so much its emphasis on language as its concern with meaning. Arguing that transcendental phenomenology is indispensable to the philosophical explanation of the space of meaning, Crowell shows how a proper understanding of both Husserl and Heidegger reveals the distinctive contributions (...) of each to that ongoing phenomenological project. (shrink)

Baruch Spinoza (1632–1677) was one of the most important philosophers of all time; he was also arguably the most radical and controversial. This was the first complete biography of Spinoza in any language and is based on detailed archival research. More than simply recounting the story of Spinoza's life, the book takes the reader right into the heart of Jewish Amsterdam in the seventeenth century and, with Spinoza's exile from Judaism, right into the midst of the tumultuous political, social, intellectual (...) and religious world of the young Dutch Republic. Though the book will be an invaluable resource for philosophers, historians, and scholars of Jewish thought, it has been written for any member of the general reading public with a serious interest in philosophy, Jewish history, seventeenth-century European history, and the culture of the Dutch Golden Age. Spinoza: A Life has recently been awarded the Koret Jewish Book Award. (shrink)

The aim of this chapter is to explore and examine what hermeneutic methods can and should be summoned in order to interpret critically an intriguing yet endlessly puzzling sentence in the “Genjōkōan” (現成公案) fascicle of Sōtō sect founder Dōgen’s (道元, 1200–1253) Shōbōgenzō (正法眼蔵). The source material deals with the way perspectives shift dramatically “when riding a boat out to sea, where mountains can no longer be seen (yamanaki kaichū 山なき海中)”? The analogy of sailing past the horizon, so that any trace (...) of land is not visible, and one feels temporarily encircled by the ocean with no other frame of reference available, raises key phenomenological issues regarding the innate partiality or insufficiency of human perception in connection to the Zen goal of awakening to a holistic standpoint that is devoid of divisibility but incorporates an array of standpoints. This passage has been interpreted in diverse ways since the time of early medieval commentaries by Senne and Kyōgō and by Edo-period Sōtō scholiasts, as well as in modern times by various Japanese philosophers and researchers of Dōgen’s texts. (shrink)

How do minds emerge from developing brains? According to the representational features of cortex are built from the dynamic interaction between neural growth mechanisms and environmentally derived neural activity. Contrary to popular selectionist models that emphasize regressive mechanisms, the neurobiological evidence suggests that this growth is a progressive increase in the representational properties of cortex. The interaction between the environment and neural growth results in a flexible type of learning: minimizes the need for prespecification in accordance with recent neurobiological evidence (...) that the developing cerebral cortex is largely free of domain-specific structure. Instead, the representational properties of cortex are built by the nature of the problem domain confronting it. This uniquely powerful and general learning strategy undermines the central assumption of classical learnability theory, that the learning properties of a system can be deduced from a fixed computational architecture. Neural constructivism suggests that the evolutionary emergence of neocortex in mammals is a progression toward more flexible representational structures, in contrast to the popular view of cortical evolution as an increase in innate, specialized circuits. Human cortical postnatal development is also more extensive and protracted than generally supposed, suggesting that cortex has evolved so as to maximize the capacity of environmental structure to shape its structure and function through constructive learning. (shrink)

In recent years an uneasy peace has descended in U.S. academe between those who feel research universities have done too little to advance the representation of minority groups and women and those who feel that the administrative policies developed to improve representation can and sometimes do come into conflict with core intellectual commitments of universities. Using quantitative and qualitative evidence from interviews with 47 natural sciences, engineering, and mathematics faculty members at a U.S. research university, the paper examines the background (...) characteristics of three sets of protagonists - academic progressives, academic traditionalists, and those whose views bridge the divide - and the way respondents discussed and justified their viewpoints. The paper draws on the theory of strategic action fields to illuminate the structure and dynamics of the conflict and suggests modifications to the theory that would improve its explanatory power for this case. (shrink)

From Plato's Ion to works by contemporary philosophers, this anthology showcases classic texts to illuminate the development of philosophical thought about art and the aesthetic. This volume is the most comprehensive collection of readings on aesthetics and the philosophy of art currently available.

The beginning of the journey -- What this book is about : using ideas from mathematics, economics, and physics to tackle the big questions in philosophy : what is real? what can we know? what is the difference between right and wrong? and how should we live? -- Reality and unreality -- On what there is -- Why is there something instead of nothing? the best answer I have : mathematics exists because it must and everything else exists because it (...) is made of mathematics, with an excursion into artificial intelligence -- Unfinished business -- Unfinished business from chapter two : the nature and purpose of economic models -- How Richard Dawkins got it wrong -- Why Dawkins's argument against intelligent design can't be right and a mathematical analysis of the arguments for the existence of God -- Belief -- Daydream believers -- Most beliefs are ill-considered because most false beliefs are costless to hold -- The next several chapters will explore the consequences of this observation before we return to the question of where our beliefs and knowledge come from -- Unfinished business -- Unfinished business from the preceding chapter : how color vision works, sound, and water waves, the sheer craziness of economic protectionism -- Do believers believe? -- Our ill-considered beliefs about religion : why I believe that almost nobody is deeply religious -- On what there obviously is -- Our ill-considered beliefs about free will, ESP, and life after death -- Diogenes's nightmare -- How is legitimate disagreement possible if you're arguing with someone who is as intelligent and informed as you are, shouldn't you put just as much weight on your opponent's arguments as your own? -- The fact that we persist in disagreeing is strong evidence that we don't really care what's true -- Knowledge -- Knowing your math -- Where mathematical knowledge comes from and logic and why evidence and logic are not enough -- Unfinished business -- Unfinished business from the preceding chapter : the tale of hercules and the hydra, with an excursion into the lore of very large numbers -- Incomplete thinking -- Godel's incompleteness theorem and what it doesn't say about the limits of human knowledge -- The rules of logic and the tale of a Potbellied pig -- The power of logical thought, with excursions into the most counterintuitive theorem in all of mathematics and the tale of a potbellied pig -- The rules of evidence -- What we can and can't learn from evidence, with excursions into the value of preschool and how internet porn prevents rape -- The limits to knowledge -- What physics does and doesn't tell us about what we can and cannot know -- Understanding Heisenberg's uncertainty principle -- Unfinished business -- The oddness of the quantum world and why it matters to game theorists -- Right and wrong -- Telling right from wrong -- Some hard questions about right and wrong and about life and death -- The economist's golden rule -- A rule of thumb for good behavior -- How to be socially responsible -- Putting the rule of thumb into practice -- On not being a jerk -- Goofus and gallant on immigration policy -- The economist on the playground -- Our ill-considered beliefs about fairness in the market place and in the voting booth, contrasted with our carefully considered beliefs about fairness on the playground -- Unfinished business -- How ancient talmudic scholars anticipated modern economic theory -- The life of the mind -- How to think -- Some basic rules for clear thinking, mostly about economics, but also about arithmetic, neurobiology, sin, and eschewing blather -- What to study -- Advice to college students : stay away from the English department and approach the philosophy department with caution, with an excursion into the remarkable life of Frank Ramsey. (shrink)

How can we take history seriously as real and relevant? Despite the hazards of politically dangerous or misleading accounts of the past, we live our lives in a great network of cooperation with other actors; past, present, and future. We study and reflect on the past as a way of exercising a responsibility for shared action. In each of the chapters of Full History Smith poses a key question about history as a concern for conscious participants in the sharing of (...) action, starting with “What Is Historical Meaningfulness?” and ending with “How Can History Have an Aim?” Constructing new models of historical meaning while engaging critically with perspectives offered by Ranke, Dilthey, Rickert, Heidegger, Eliade, Sartre, Foucault, and Arendt, Smith develops a philosophical account of thinking about history that moves beyond postmodernist skepticism. Full History seeks to expand the cast of significant actors, establishing an inclusive version of the historical that recognizes large-scale cumulative actions but also encourages critical revision and expansion of any paradigm of shared action. (shrink)

Preface -- Why political philosophy? -- Antigone and the politics of conflict -- Socrates and the examined life -- Plato on justice and the human good -- Aristotle's science of regime politics -- The politics of the Bible -- Machiavelli and the art of political founding -- Hobbes's new science of politics -- Locke and the art of constitutional government -- Rousseau on civilization and its discontents -- Tocqueville and the dilemmas of democracy -- In defense of patriotism.

Winner of 2002 Edward Goodwin Ballard Prize In a penetrating and lucid discussion of the enigmatic relationship between the work of Edmund Husserl and Martin Heidegger, Steven Galt Crowell proposes that the distinguishing feature of twentieth-century philosophy is not so much its emphasis on language as its concern with meaning. Arguing that transcendental phenomenology is indispensable to the philosophical explanation of the space of meaning, Crowell shows how a proper understanding of both Husserl and Heidegger reveals the distinctive contributions (...) of each to that ongoing phenomenological project. (shrink)

Steven Shapin argues that science, for all its immense authority and power, is and always has been a human endeavor, subject to human capacities and limits.

Explores the interrelationship of mind, self, emotion and the development of moral consciousness in the Nepalese city of Bhaktapur. The author investigates how the citizens have developed moral awareness in the context of cultural life.

Released in 1984, Steven E. Rhoads' classic was considered by many to be among the best introductions to the economic way of thinking and its applications. This anniversary edition has been updated to account for political and economic developments - from the greater interest in redistributing income and the ascendancy of behaviorism to the Trump presidency. Rhoads explores opportunity cost, marginalism, and economic incentives and explains why mainstream economists - even those well to the left - still value free (...) markets. He critiques economics for its unbalanced emphasis on narrow self-interest as controlling motive and route to happiness, highlighting philosophers and positive psychologists' findings that happiness is far more dependent on friends and family than on income or wealth. This thought-provoking tour of the economist's mind is a must read for our times, providing a clear, lively, non-technical insight into how economists think and why they shouldn't be ignored. (shrink)

Based on his theory of animalrights, Regan concludes that humans are morallyobligated to consume a vegetarian or vegandiet. When it was pointed out to him that evena vegan diet results in the loss of manyanimals of the field, he said that while thatmay be true, we are still obligated to consumea vegetarian/vegan diet because in total itwould cause the least harm to animals (LeastHarm Principle, or LHP) as compared to currentagriculture. But is that conclusion valid? Isit possible that some other (...) agriculturalproduction alternatives may result in leastharm to animals? An examination of thisquestion shows that the LHP may actually bebetter served using food production systemsthat include both plant-based agriculture and aforage-ruminant-based agriculture as comparedto a strict plant-based (vegan) system. Perhapswe are morally obligated to consume a dietcontaining both plants and ruminant(particularly cattle) animal products. (shrink)

This short work examines what the Hippocratic Oath said to Greek physicians 2400 years ago and reflects on its relevance to medical ethics today. Drawing on the writings of ancient physicians, Greek playwrights, and modern scholars, each chapter explores one passage of the Oath and concludes with a modern case discussion. This book is for anyone who loves medicine and is concerned about the ethics and history of the profession.

I first outline the standard dispositionalist account and indicate how this account has been extended from the everyday to the realm of modern physics – from vases to quarks, in effect. Here I note a fundamental obstacle: the role of symmetries as constraints on the fundamental laws in physics. One of the great virtues of the standard dispositionalist account is that it supposedly yields laws from dispositions but it remains unclear, at best, how it can accommodate such symmetry principles. I (...) then outline some ways the dispositonalist might try to do that but in effect I close off each option by indicating how the problem merely gets pushed back a step or two. Ultimately, the dispositionalist will have to ascribe her dispositions to objects that are metaphysically very ‘thin’, in the sense that they are mere placeholders within the physical structure, and also give up the standard Stimulus + Manifestation account. Of course, that will be music to the ears of certain other critics within and outwith the powers camp and I conclude by considering some recent proposals and evaluating whether they might be ‘fit for purpose’ within the context of modern physics. (shrink)

How might we change ourselves without ending our existence? What could we become, if we had access to an advanced form of bioengineering that allowed us dramatically to alter our genome? Could we remain in existence after ceasing to be alive? What is it to be human? Might we still exist after changing ourselves into something that is not human? What is the significance of human extinction? Steven Luper addresses these questions and more in this thought-provoking study. He defends (...) an animalist account, which says that we are organisms, but claims that we are also material objects. His book goes to the heart of the most complex questions about what we are and what we might become. Using case studies from the life sciences as well as thought experiments, Luper develops a new way of thinking about the nature of life and death, and whether and how human extinction matters. (shrink)

I offer an interpretation of John Stuart Mill's theory of higher and lower pleasures in his Utilitarianism. I argue that the quality of pleasure is best understood as the density of pleasure per unit of delivery. Mill is illustrated with numerous beer examples.