Higher-Order Theories of Consciousness. an Appraisal And

Total Page:16

File Type:pdf, Size:1020Kb

Higher-Order Theories of Consciousness. an Appraisal And JYVÄSKYLÄ STUDIES IN EDUCATION, PSYCHOLOGY AND SOCIAL RESEARCH 387 Pessi Lyyra Higher-Order Theories of Consciousness An Appraisal and Application JYVÄSKYLÄ STUDIES IN EDUCATION, PSYCHOLOGY AND SOCIAL RESEARCH 387 Pessi Lyyra Higher-Order Theories of Consciousness An Appraisal and Application Esitetään Jyväskylän yliopiston yhteiskuntatieteellisen tiedekunnan suostumuksella julkisesti tarkastettavaksi yliopiston Villa Ranan Blomstedt-salissa huhtikuun 21. päivänä 2010 kello 12. Academic dissertation to be publicly discussed, by permission of the Faculty of Social Sciences of the University of Jyväskylä, in the building Villa Rana, Blomstedt hall, on April 21, 2010 at 12 o'clock noon. UNIVERSITY OF JYVÄSKYLÄ JYVÄSKYLÄ 2010 Higher-Order Theories of Consciousness An Appraisal and Application JYVÄSKYLÄ STUDIES IN EDUCATION, PSYCHOLOGY AND SOCIAL RESEARCH 387 Pessi Lyyra Higher-Order Theories of Consciousness An Appraisal and Application UNIVERSITY OF JYVÄSKYLÄ JYVÄSKYLÄ 2010 Editor Jussi Kotkavirta Department of Philosophy and Social Sciences, University of Jyväskylä Pekka Olsbo Publishing Unit, University Library of Jyväskylä Cover picture by Pessi Lyyra URN:ISBN:978-951-39-3919-9 ISBN 978-951-39-3919-9 (PDF) ISBN 978-951-39-3848-2 (nid.) ISSN 0075-4625 Copyright © 2010 , by University of Jyväskylä Jyväskylä University Printing House, Jyväskylä 2010 ABSTRACT Lyyra, Pessi Higher-order theories of consciousness: An appraisal and application Jyväskylä: University of Jyväskylä, 2010, 163 pp. (Jyväskylä Studies in Education, Psychology and Social Research ISSN 0075-4625; 387) ISBN 978-951-39-3919-9 (PDF), 978-951-39-3848-2 (nid.) The subjectively experienced ‘phenomenality‘ of consciousness is often taken to constitute the greatest enigma of the contemporary philosophy of mind, or even science in general: how can phenomenal conscious experience arise out of its physical substrate? The so called higher-order theories of consciousness propose to solve this problem by the cognitive ability of being aware of one’s own mental states. The first and foremost justification for these theories is the intuitively appealing idea that only those mental states are conscious, which we are somehow aware of. In this study, these theories and the core intuition they rely on are examined. It is claimed that while this intuition holds for everyday human consciousness, it does not hold equally well for the more primitive kinds of consciousness, such as infant or animal consciousness. The intuition also conflicts with the opposite intuition that self-awareness can be detrimental to the vividness of world-directed consciousness. The intuition itself remains unexplained, and the theories lack relevant empirical support. To solve these problems, a novel conception of higher-order consciousness is suggested, a practical form of consciousness characteristic of human beings called ‘mentalized consciousness’. It essentially involves self-awareness and develops in the early interaction of an infant and its primary caregivers, as suggested by recent theories and findings in empirical psychology. It is shown that, while avoiding their problems, the intuitive appeal of the higher-order theories of consciousness can be explained by the concept of mentalized consciousness. Keywords: Consciousness, Phenomenality, Self-awareness, Higher-order theories of consciousness, Phenomenological theories of consciousness, Mentalization, Mentalized consciousness Author´s address Pessi Lyyra Department of Philosophy and Social Sciences University of Jyväskylä, Finland P.O.BOX 35, 40014 University of Jyväskylä [email protected] Supervisors Jussi Kotkavirta Department of Philosophy and Social Sciences University of Jyväskylä, Finland Mikko Yrjönsuuri Department of Philosophy and Social Sciences University of Jyväskylä, Finland Reviewers Paavo Pylkkänen Department of Theoretical Philosophy University of Helsinki, Finland Panu Raatikainen Department of Theoretical Philosophy University of Helsinki, Finland Opponent David Rosenthal Department of Philosophy and Cognitive Science Graduate Center, City University of New York, USA 5 ACKNOWLEDGEMENTS I have received inspiration and support for this project from so many people that only few of them can be duely mentioned. First of all, I would like to thank my supervisors Jussi Kotkavirta and Mikko Yrjönsuuri and other people of the unit of Philosophy in the Department of Philosophy of The University of Jyväskylä for guidance, friendship and making up an exemplary working environment filled with enthusiasm and freedom of thought. It has been a privilege to work in a place with so many people with shared interests. People in the research projects ”The Concept of Person”, ”Limits of Personhood” and ”Human and animal minds in European philosophy 1200–1700” have influenced this study the most. In our seminars and reading groups most ideas of this study were conceived, developed and tested during the years. This study has crucially benefitted from discussions on the issues of it with Professor Antti Revonsuo from the University of Turku, Professor Dan Zahavi from the University of Copenhagen, Professor Shaun Gallagher from the University of Orlando, and Dr. Susanna Radovic from the University of Gothenburg. Mr. Michael Freeman gave indispensable advice with the English language. The research has been supported by The Finnish Cultural Foundation, The Fund of Central Finland of The Finnish Cultural Foundation, respectively, The Academy of Finland, and The Agora Center of The University of Jyväskylä. The research project has also been a significant occasion of personal growth, of self-understanding and becoming the person I am, which is reflected in the content of the study. I can say that I have lived the best days of my life during this research project. I owe everything to the “strong Lyyra women” and other members of my family, especially to my mother Ulla-Riitta Lyyra. I feel that I have inherited some of her originality and courage to stand behind it. Finally, I wish to thank the most my wife Hannalea Lyyra and our children Nana and Jouka for all the support and love – you have taught me what it is all about. At Gift Ridge, March 13, 2010 Pessi Lyyra FIGURES FIGURE 1 The consciousness tree.………………………………………………..34 FIGURE 2 The consciousness tree, version 2…………………….……………....37 FIGURE 3 The consciousness tree, version 3…………………….……………....42 FIGURE 4 The consciousness tree, version 4….………………….……………...67 FIGURE 5 The consciousness tree, version 5……………………….…………..109 TABLES TABLE 1 Objections to HO-theories…………………………………………….92 CONTENTS ABSTRACT ACKNOWLEDGEMENTS FIGURES AND TABLES CONTENTS 1 INTRODUCTION ................................................................................................ 9 1.1 Consciousness and self-awareness ........................................................... 9 1.2 An itinerary ................................................................................................ 13 2 THE PROBLEM OF CONSCIOUSNESS ......................................................... 15 2.1 On method: The return of speculative psychology? ............................ 15 2.2 Consciousness: basic distinctions ........................................................... 22 2.3 The “easy” and “hard” problems of consciousness ............................. 26 2.4 Empirical approaches to consciousness ................................................ 34 3 THE REPRESENTATIONAL THEORY OF CONSCIOUSNESS ................. 42 3.1 Mind and intentionality ........................................................................... 44 3.2 Representational content: narrow or wide ............................................ 50 3.3 Representational content: conceptual or non-conceptual? ................. 57 3.4 Evaluative intentionalism ........................................................................ 62 4 HIGHER-ORDER THEORIES OF CONSCIOUSNESS ................................. 67 4.1 First-order and higher-order representationalism: a first approximation ................................................................................ 67 4.2 Two basic views: HOP and HOT ........................................................... 71 4.3 Intrinsicalism and relationalism ............................................................. 84 4.4 HOR and language ................................................................................... 88 4.5 Appraisal: Insufficiency of HOR in explaining phenomenality ........ 92 4.6 HOP and HOT: a false opposition? ...................................................... 105 5 FORMS AND PROPERTIES OF HIGHER-ORDER CONSCIOUSNESS . 110 5.1 Objects of higher-order representations .............................................. 110 5.2 Psychological issues in higher-order representations ....................... 116 5.3 Mentalized consciousness and other forms of higher-order consciousness .......................................................................................... 122 5.4 The intuition of “givenness of consciousness” ................................... 129 5.5 Contenders and counter-arguments .................................................... 133 6 CONCLUDING REMARKS ........................................................................... 136 YHTEENVETO ........................................................................................................... 142 REFERENCES ............................................................................................................. 147 1 INTRODUCTION
Recommended publications
  • Arxiv:2012.10390V2 [Cs.AI] 20 Feb 2021 Inaccessible
    Opinion - Paper under review Deep Learning and the Global Workspace Theory Rufin VanRullen1, 2 and Ryota Kanai3 1CerCo, CNRS UMR5549, Toulouse, France 2ANITI, Universit´ede Toulouse, France 3Araya Inc, Tokyo. Japan Abstract Recent advances in deep learning have allowed Artificial Intelligence (AI) to reach near human-level performance in many sensory, perceptual, linguistic or cognitive tasks. There is a growing need, however, for novel, brain-inspired cognitive architectures. The Global Workspace theory refers to a large-scale system integrating and distributing infor- mation among networks of specialized modules to create higher-level forms of cognition and awareness. We argue that the time is ripe to consider explicit implementations of this theory using deep learning techniques. We propose a roadmap based on unsu- pervised neural translation between multiple latent spaces (neural networks trained for distinct tasks, on distinct sensory inputs and/or modalities) to create a unique, amodal global latent workspace (GLW). Potential functional advantages of GLW are reviewed, along with neuroscientific implications. 1 Cognitive neural architectures in brains and ma- chines Deep learning denotes a machine learning system using artificial neural networks with multiple \hidden" layers between the input and output layers. Although the underlying theory is more than 3 decades old [1, 2], it is only in the last decade that these systems have started to fully reveal their potential [3]. Many of the recent breakthroughs in AI (Artificial Intelligence) have been fueled by deep learning. Neuroscientists have been quick to point out the similarities (and differences) between the brain and these deep artificial neural networks [4{9]. The advent of deep learning has allowed the efficient computer implementation of perceptual and cognitive functions that had been so far arXiv:2012.10390v2 [cs.AI] 20 Feb 2021 inaccessible.
    [Show full text]
  • Theoretical Models of Consciousness: a Scoping Review
    brain sciences Review Theoretical Models of Consciousness: A Scoping Review Davide Sattin 1,2,*, Francesca Giulia Magnani 1, Laura Bartesaghi 1, Milena Caputo 1, Andrea Veronica Fittipaldo 3, Martina Cacciatore 1, Mario Picozzi 4 and Matilde Leonardi 1 1 Neurology, Public Health, Disability Unit—Scientific Department, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; [email protected] (F.G.M.); [email protected] (L.B.); [email protected] (M.C.); [email protected] (M.C.); [email protected] (M.L.) 2 Experimental Medicine and Medical Humanities-PhD Program, Biotechnology and Life Sciences Department and Center for Clinical Ethics, Insubria University, 21100 Varese, Italy 3 Oncology Department, Mario Negri Institute for Pharmacological Research IRCCS, 20156 Milan, Italy; veronicaandrea.fi[email protected] 4 Center for Clinical Ethics, Biotechnology and Life Sciences Department, Insubria University, 21100 Varese, Italy; [email protected] * Correspondence: [email protected]; Tel.: +39-02-2394-2709 Abstract: The amount of knowledge on human consciousness has created a multitude of viewpoints and it is difficult to compare and synthesize all the recent scientific perspectives. Indeed, there are many definitions of consciousness and multiple approaches to study the neural correlates of consciousness (NCC). Therefore, the main aim of this article is to collect data on the various theories of consciousness published between 2007–2017 and to synthesize them to provide a general overview of this topic. To describe each theory, we developed a thematic grid called the dimensional model, which qualitatively and quantitatively analyzes how each article, related to one specific theory, debates/analyzes a specific issue.
    [Show full text]
  • Global Workspace Theory and Animal Consciousness
    19 August 2020 Global Workspace Theory and Animal Consciousness Jonathan Birch Centre for Philosophy of Natural and Social Science, London School of Economics and Political Science, Houghton Street, London, WC2A 2AE, UK. Email: [email protected] Webpage: http://personal.lse.ac.uk/birchj1 This is a preprint of an article that will appear in Philosophical Topics. 7082 words 1 Abstract: Carruthers has recently argued for a surprising conditional: if a global workspace theory of phenomenal consciousness is both correct and fully reductive, then there are no substantive facts to discover about phenomenal consciousness in non-human animals. I present two problems for this conditional. First, it rests on an odd double-standard about the ordinary concept of phenomenal consciousness: its intuitive non-gradability is taken to be unchallengeable by future scientific developments, whereas its intuitive determinacy is predicted to fall by the wayside. Second, it relies on dismissing, prematurely, the live empirical possibility that phenomenal consciousness may be linked to a core global broadcast mechanism that is (determinately) shared by a wide range of animals. Future developments in the science of consciousness may lead us to reconsider the non-gradability of phenomenal consciousness, but they are unlikely to lead us to accept that there are no facts to discover outside the paradigm case of a healthy adult human. Key words: animal consciousness, phenomenal consciousness, consciousness science, global workspace theory, phenomenal concepts 2 1. Carruthers’ surprising conditional For more than thirty years, scepticism about attributions of phenomenal consciousness1 to (states of) non-human animals has been a major theme in Peter Carruthers’ work (Carruthers 1989, 1992, 1999, 2000, 2004, 2005, 2018a,b, 2019, 2020).
    [Show full text]
  • The Phenomenology of the Self-Conscious Mind
    The Phenomenology of the Self-Conscious Mind Robert G. Mays, B.Sc. Suzanne B. Mays Chapel Hill, NC ABSTRACT: The phenomenon of a near-death experiencer's veridical perceptions during the out-of-body experience (OBE) strongly suggests the existence of a self-conscious mind as a "field of consciousness," a region of space where a person's consciousness exists. In the out-of-body state, the mind appears to be nonmaterial and completely independent of the physical body. Ordinarily, though, the self-conscious mind appears as an autonomous entity united with the brain and body. In this united state, the self-conscious mind operates through the mediation of the brain. This view is supported by evidence from neurological phenomena such as subjective antedating of sensory experiences and mental force. This evidence suggests that a nonneural agency induces conscious experience and self-conscious awareness. Phenomena from OBEs, including apparent subtle interactions with physical processes such as light, sound, and physical objects, as well as reported interactions with "in-body" persons, support the view that the self-conscious mind is able to interact in some physical way with the brain. Neurological phenomena such as Benjamin Libet's (1985) delayed awareness of willed action can be reconsidered successfully in light of this view. Such efforts might also prove useful, for example, in explaining phantom limb phenomena. KEY WORDS: near-death experience; out-of-body experience; mind-body problem; self-conscious mind; veridical perception. Robert G. Mays, B.Sc., is a retired senior software engineer and Suzanne B. Mays, A.A., is a Certified Music Practitioner (through the Music for Healing and Transition Program) who provides palliative care to hospitalized patients.
    [Show full text]
  • COMPETING MODELS of CONSCIOUSNESS David Rosenthal Philosophy and Cognitive Science Graduate Center, City University of New York
    COMPETING MODELS OF CONSCIOUSNESS David Rosenthal Philosophy and Cognitive Science Graduate Center, City University of New York REVISED PENULTIMATE VERSION Word count: 2,248 Graziano and colleagues (forthcoming) sketch some suggestive ways in which Graziano’s attention-schema theory (AST) of consciousness (Graziano 2013, 2019; Webb and Graziano 2015) connects with three other theories: the global-workspace theory (GWT) of Baars (1997) and Dehaene and Naccache (2001), higher-order-thought (HOT) theory (Rosenthal 2005), and illusionism (Frankish 2016). According to Graziano and colleagues, these “theories should not be viewed as rivals, but as partial perspectives on a deeper mechanism” (1). The deeper mechanism they have in mind is that of AST, which they urge constitutes “a kind of standard model that covers the basics if not the details” of consciousness (1). I’ll raise difficulties for this irenic construal of these four theories, and argue that they are in important ways theoretical competitors. Graziano and colleagues see the term ‘consciousness’ as applying to two distinct phenomena. One is “how select information reaches a state in which it is bundled centrally and can impact output systems.” They call this i-consciousness, in contrast with what they call m-consciousness, “a more mysterious, extra, experiential essence that people claim accompanies the informational content” that occurs in i-consciousness (2). The ‘m’ of ‘m- consciousness’ reflects their view that this notion is inherently mysterious. With that distinction in place, Graziano and colleagues urge that the central issue for a theoretical treatment of consciousness is “whether m-consciousness, the more ethereal notion of consciousness that people intuitively believe they have, is accurate or instead is an imperfect model of i-consciousness” (2).
    [Show full text]
  • Reflexive Monism
    Reflexive Monism Max Velmans, Goldsmiths, University of London; email [email protected]; http://www.goldsmiths.ac.uk/psychology/staff/velmans.php Journal of Consciousness Studies (2008), 15(2), 5-50. Abstract. Reflexive monism is, in essence, an ancient view of how consciousness relates to the material world that has, in recent decades, been resurrected in modern form. In this paper I discuss how some of its basic features differ from both dualism and variants of physicalist and functionalist reductionism, focusing on those aspects of the theory that challenge deeply rooted presuppositions in current Western thought. I pay particular attention to the ontological status and seeming “out- thereness” of the phenomenal world and to how the “phenomenal world” relates to the “physical world”, the “world itself”, and processing in the brain. In order to place the theory within the context of current thought and debate, I address questions that have been raised about reflexive monism in recent commentaries and also evaluate competing accounts of the same issues offered by “transparency theory” and by “biological naturalism”. I argue that, of the competing views on offer, reflexive monism most closely follows the contours of ordinary experience, the findings of science, and common sense. Key words: Consciousness, reflexive, monism, dualism, reductionism, physicalism, functionalism, transparency, biological naturalism, phenomenal world, physical world, world itself, universe itself, brain, perceptual projection, phenomenal space, measured space, physical space, space perception, information, virtual reality, hologram, phenomenological internalism, phenomenological externalism, first person, third person, complementary What is Reflexive Monism? Monism is the view that the universe, at the deepest level of analysis, is one thing, or composed of one fundamental kind of stuff.
    [Show full text]
  • What We Really Know About Consciousness: Review of A
    What We Really Know About Consciousness Review of A Cognitive Theory of Consciousness by Bernard Baars Bruce Bridgeman Department of Psychology University of California Santa Cruz, CA 95064 USA [email protected] Copyright (c) Bruce Bridgeman 1996 Received: May 10, 1996; Published: July 19, 1996 PSYCHE, 2(30), July 1996 http://psyche.cs.monash.edu.au/v2/psyche-2-30-bridgeman.html KEYWORDS: consciousness, Global Workspace theory, functions of consciousness, modules. REVIEW OF: Bernard J. Baars (1988) A Cognitive Theory of Consciousness. Cambridge: Cambridge University. xxiii+424pp. ISBN: 0-521-42743-6. Price: US$19.95 pbk. Behaviorism died very slowly in American psychology. Willing to admit only stimuli and responses, narrowly defined, as the contents of its science, it was too limited to be useful in understanding higher organisms. But it seemed for decades to be the only way to eliminate subjectivism and to make psychology scientific. Cracks in behaviorist orthodoxy began to appear 40 years ago, though physiological psychologists never felt themselves bound by its restrictions. By the 1960s psychologists were openly espousing a new 'cognitive' psychology, admitting to internal states and a mental life beyond overt behavior. It was a step forward, but the block diagrams of the cognitive psychologists still had a stimulus on one end and a response on the other, just like those of the old-fashioned behaviorists. Consciousness, the great problem that got psychology started, was still viewed with alarm as the purview of charlatans and worse. Fear of consciousness, the last remnant of behaviorist influence on psychology, has been slow to yield.
    [Show full text]
  • Consciousness As Integrated Perception, Motivation, Cognition, and Action
    Shanahan, Murray (2016) Consciousness as integrated perception, motivation, cognition, and action. Animal Sentience 9(12) DOI: 10.51291/2377-7478.1145 This article has appeared in the journal Animal Sentience, a peer-reviewed journal on animal cognition and feeling. It has been made open access, free for all, by WellBeing International and deposited in the WBI Studies Repository. For more information, please contact [email protected]. Animal Sentience 2016.122: Shanahan on Klein & Barron on Insect Experience Consciousness as integrated perception, motivation, cognition, and action Commentary on Klein & Barron on Insect Experience Murray Shanahan Department of Computing Imperial College London Abstract: This commentary has two aims: first to clarify the behavioural grounds for the ascription of consciousness to non-human animals (including insects), and second to show how Klein & Barron’s views can be reconciled with the core claims of global workspace theory. Murray Shanahan, Professor of Cognitive Robotics, Imperial College London, is interested in the principles that underlie sophisticated cognition, both as it is found in Nature and as it might be realised artificially. https://www.doc.ic.ac.uk/~mpsha/ 1. Behavioural Hallmarks of Consciousness in Other Animals In due course I’m going to discuss the brains of invertebrates and Klein & Barron’s (K & B, 2016) claim that insects have the capacity for subjective experience. But first I want to talk about the behaviour of cats. What is it that convinces us, without recourse to neuroscience, that we are in the company of a fellow conscious creature when we are with a domestic animal such as a cat? A child might be taken in by doleful eyes and soft fur (features lacking in insects).
    [Show full text]
  • The Many-Worlds Theory of Consciousness
    1 The many-worlds theory of consciousness Christian List* Discussion paper, this version posted in March 2020 Abstract This exploratory paper discusses a somewhat heterodox metaphysical theory of consciousness: the “many- worlds theory”. The theory gives up the common assumption that all conscious experiences are features of one and the same world and asserts instead that different conscious subjects are associated with different “first- personally centred worlds”. We can think of these as distinct and “parallel” first-personal realizers of a shared “third-personal world”. This is combined with a form of modal realism, according to which different subjects’ first-personally centred worlds are all real, though only one of them is present for each subject. The relationship between first-personally centred and third-personal worlds can in turn be captured in a levelled ontology, where the first-personal level is subvenient and the third-personal supervenient. The described setup is intended to capture the irreducibly subjective nature of conscious experience without lapsing into solipsism. The paper also looks at some existing scientific theories of consciousness, such as integrated information theory, through the lens of the present metaphysical theory and discusses its implications for the hard problem of consciousness. 1. Introduction The aim of this paper is to explore a somewhat heterodox metaphysical theory of consciousness: the “many-worlds theory”. The theory seeks to offer an account of how consciousness, in the sense of subjective experience, fits into the world and how it relates to other, non-subjective features. To capture the irreducibly subjective nature of conscious experience, the theory gives up the common assumption that all conscious experiences – yours, mine, and those of everyone else – are features of one and the same world and asserts instead that different conscious subjects are associated with different “first-personally centred worlds”.
    [Show full text]
  • The Global Workspace Theory, the Phenomenal Concept Strategy, and the Distribution of Consciousness T
    Consciousness and Cognition 84 (2020) 102992 Contents lists available at ScienceDirect Consciousness and Cognition journal homepage: www.elsevier.com/locate/concog The global workspace theory, the phenomenal concept strategy, and the distribution of consciousness T Dylan Black Xi’an Jiaotong University, 28 Xianning W Rd, Jiao Da Shang Ye Jie Qu, Beilin Qu, Xian Shi, Shaanxi Sheng, China ARTICLE INFO ABSTRACT Keywords: Peter Carruthers argues that the global workspace theory implies there are no facts of the matter Global workspace about animal consciousness. The argument is easily extended to other cognitive theories of Phenomenal concept strategy consciousness, posing a general problem for consciousness studies. But the argument proves too Explanatory gap much, for it also implies that there are no facts of the matter about human consciousness. A key Functions of consciousness assumption is that scientific theories of consciousness must explain away the explanatory gap. I Comparative psychology criticize this assumption and point to an alternative strategy for defending scientific theories of consciousness, one that better reflects the ongoing scientific practice. I argue there are in- trospectable inferential connections from phenomenal concepts to functional concepts that sci- entists can use to individuate the global workspace in terms of capacities that animals and hu- mans share. Carruthers (2018, 2019) argues that the global workspace theory of consciousness implies there are no facts of the matter about animal consciousness. Although animals share cognitive architecture that is similar in various ways to the global workspace, there are no facts of the matter about what kind of similarity would suffice for consciousness. If he is right, comparative psychologists should stop asking questions about animal consciousness.
    [Show full text]
  • A Higher-Order Theory of Emotional Consciousness. Joseph Ledoux and Richard Brown
    1 SUPPORTING INFORMATION Feeling It: A Higher-Order Theory of Emotional Consciousness. Joseph LeDoux and Richard Brown Table of Contents Page Number Box 1: Defining Cortical vs. Subcortical Circuits 2 Box 2: The Consciousness Patients: How Neurological 2 Cases Helped Revive Interest in Consciousness as a Scientific Topic Box 3: Measuring Introspective Consciousness Using 3 Verbal and other Reporting Methods in Humans and Other Animals Box 4: Nonconscious Cognition (Especially Nonconscious 7 Working Memory) Box 5: Rich versus Sparse views on Phenomenology of 10 Perception Box 6: Role of Awareness in First-Order Phenomenal 12 Consciousness Box 7: Higher-Order Theories and their Relation to Other 15 Cognitive Theories of Consciousness Box 8: Phenomenal Consciousness in Higher-order 19 Thought Theories of Consciousness Box 9: Relational versus Non-Relational Higher-Order 19 Theories Box 10: Research Questions 21 2 BOX 1: DEFINING CORTICAL VS. SUBCORTICAL CIRCUITS. For the purposes of this article we distinguish “cortical” and “subcortical” circuits of the cerebral hemispheres in the following way. “Cortical” is used in reference to laminated structures in the outer shell (i.e. the cortex) of cerebral hemispheres. Particular emphasis is placed on cortical regions that contribute to sensory processing (areas of visual cortex) and higher cognitive processing (especially lateral and medial prefrontal cortex, but also parietal and insular cortex). “Subcortical” is used to refer to structures that lie within, but underneath the cortical mantle, of the cerebral hemispheres, and that lack prominent or consistent lamination. Circuits centered on the amygdala that detect innate and learned threats and control the expression of defensive behaviors and supporting physiological responses in response to theses stimuli are emphasized.
    [Show full text]
  • Global Workspace Theory: a Prominent Scientific Approach to the Nature of Consciousness
    RESEARCH PAPER Philosophy Volume : 3 | Issue : 9 | Sept 2013 | ISSN - 2249-555X Global Workspace Theory: A Prominent Scientific Approach to the Nature of Consciousness KEYWORDS Global work space, modularity, hard problem, multiple draft model Dr. Sheeja O.K Lecturer (on Contract), Dept. of Philosophy, University of Calicut, Calicut University P.O, Malappuram (Dt) Kerala-673 635. ABSTRACT The objective of this paper is to present one prominent scientific approach to consciousness by Bernard J. Baars- the Global workspace Theory (GWT). Global Workspace Theory holds the view that the brain has a fleeting integrative capacity that enables access between functions that are otherwise separate. Consciousness is the pri- mary agent of such a global access function in humans and other mammals. GW holds the view that the role of conscious- ness is to facilitate information exchange among multiple specialized unconscious processes in the brain. Consciousness is a state of global activation in a “workspace”. Somewhat similar idea has been introduced by Jerry Fodor. Fodor has placed greatest emphasis on information encapsulation. But there are some criticisms too. GWT does not answer the hard problem of consciousness. And Dennett doubts whether GWT is a “Cartesian Theatre”. However, Baar’s account of global workspace is a promising scientific approach in explaining consciousness. brain sources; unconscious sensory processing is much The problem of consciousness is not just one problem. Rather more limited. it is an ambiguous term referring to many different Phenome- 2. Consciousness perception, inner speech and visual Im- na. These problems can be divided under two headings hard agery enable working memory functions including ex- and easy problems.
    [Show full text]