Online research in philosophy

Fifty years ago J. J. C. Smart published his pioneering paper, “Sensations and Brain Processes.” It is appropriate to mark the golden anniversary of Smart’s publication by considering how well his article has stood up, and how well the identity theory itself has fared. In this paper I first revisit Smart’s text, reflecting on how it has weathered the years. Then I consider the status of the identity theory in current philosophical thinking, taking into account the objections and (...) replies that Smart discussed as well as some that he did not anticipate. Finally, I offer a brief manifesto for the identity theory, providing a small list of the claims that I believe contemporary identity theorist should accept. As it turns out, these are more or less the ones that Smart defended fifty years ago. (shrink)

“This is surely the ultimate expression of the top-down approach to consciousness, written with Sommerhoff's characteristic clarity and precision. It says far more than other books four times the size of this admirably concise volume. This book is destined to become a pillar of the subject.” —Rodney Cotterill, Technical University of Denmark The problem of consciousness has been described as a mystery about which we are still in a terrible muddle and in Understanding Consciousness: Its Function and Brain (...) class='Hi'>Processes, the author attempts to unravel this mystery by offering a clarification of the main concepts related to consciousness, and positing a comprehensive biological explanation. Consequently, this book will be ideal for a wide-range of upper level undergraduate and postgraduate courses. The author interprets consciousness as a property that can be possessed by many creatures lacking a language faculty and comprises all of the following: awareness of the surrounding world; awareness of the self as an entity; and awareness of such things as thoughts and feelings. He argues that a biological approach can achieve both the necessary conceptual clarifications and a joint explanation of these divisions of awareness in terms of just two accurately defined concepts of 'internal representation' and two empirically supported assumptions about the functional architecture of a specific set of brain processes. Despite this striking simplicity, his model covers these divisions of awareness both as objective faculties of the brain and as subjective experience. These conclusions are applied to a broad range of fundamental questions, including the biological rationale of subjective experience and where consciousness resides in the neural networks. (shrink)

SUPPOSE that I report that I have at this moment a roundish, blurry-edged after-image which is yellowish towards its edge and is orange towards its centre. What is it that I am reporting?l One answer to this question might be that I am not reporting anything, that when I say that it looks to me as though there is a roundish yellowy orange patch of light On the wall I am expressing some sort of temptation, the temptation to say that (...) there is a roundish yellowy orange patch on the wall (though I may know that there is not such a patch on the wall). This is perhaps Wittgenstein's view in the Philosophical Investigations (see paragraphs 367, 370). Similarly, when I "report" a pain, I am not really reporting anything (or, if you like, I am reporting in a queer sense of "reporting"), but am doing a sophisticated sort of wince. (See paragraph 244: "The verbal expression of pain replaces crying and docs not describe it." Nor docs it describe anything else?)2 I prefer most of the time to discuss an afterimage rather than a pain, because the word "pain" brings in something which is irrelevant to my purpose: the notion of "distress." I think that "he is in pain" entails "he is in distress," that is, that he is in a certain agitation-condition.3 Similarly, to say "I am in pain" may be to do more than "replace pain behavior": it may be partly to report something, though this something is quite nonmysterious, being an agitation-condition, and so susceptible of behavioristic analysis. The suggestion I wish if possible to avoid is a different one, namely that "I am in pain" is a genuine report, and that what it reports is an irreducibly psychical something. And similarly the suggestion I wish to resist is also that to say "I have a yellowish orange after-image" is to report something irreducibly psychical. (shrink)

The writer's 1956 contention that "the thesis that consciousness is a process in the brain is ... a reasonable scientific hypothesis" is contrasted with Davidson's a priori argument in 'Mental events' for the identity of propositional attitude tokens with some unspecified and imspecifiable brain state tokens. Davidson's argument is rejected primarily on the grounds that he has failed to establish his claim that there are and can be no psycho-physical bridge laws. The case forthe empirical nature of the (...) issue between the identity thesis and interactionism is re-stated in tiie light of an analysis of the causal relations involved. The same analysis is also used to demonstrate the incoherence of parallelism and epiphenomenalism as alternatives to interactionism. (shrink)

The scientific study of the human mind and brain has come of age with the advent of technologically advanced methods for imaging brain structure and activity in health and disease, plus computational theories of cognition. These advances are leading to sophisticated new accounts for how mental processes are implemented in the human brain, but they also raise new challenges. -/- Mental Processes in the Human Brain provides an integrative overview of the rapid advances and (...) future challenges in understanding the neurobiological basis of mental processes that are characteristically (and in some cases, perhaps uniquely) human, including: language; thought; understanding of others; attention; planning and decision-making; emotion; memory; prediction; and awareness itself. The book also presents the latest insights into how these various processes can break down after brain injury. With chapters from some of leading figures in the brain sciences, this book will be essential for all those in the cognitive and brain sciences. (shrink)

In the latter part of this two-article sequence, the concept of emotion as reorganization of the organism-environment system is developed further in relation to consciousness, subjective experience and brain activity. It is argued that conscious emotions have their origin in reorganizational changes in primitive co-operative organizations, in which they get a more local character with the advent of personal consciousness and individuality, being expressed in conscious emotions. However, the conscious emotion is not confined to the individual only, but it (...) gets its content and the emotional quale in the social context, and in relation to the norms of the given culture. Emotion is fundamentally the process of ascription of meaning to the parts of the world which are relevant in the achievement of results of behavior. Although emotions may be studied as reorganizational processes in the organism-environment system with the help of physiological recordings and behavioral observations, it is argued — in contrast to the mainstream cognitive science — that emotions cannot be localized in the brain, although the brain is important in their generation as a part of the organism-environment system. It is suggested that the parts of the brain most closely related to emotional expression contain neurons subserving functional systems which are formed in early development, and which are therefore most intimately related to reorganizational processes in the organism-environment system. (shrink)

The volume reviews recent progress on our understanding of memory, consciousness and the brain and identifies a number of acute outstanding problems.

Real-time cognition is continuous in time and contiguous in mental state space. This temporal continuity implies that the majority of mental life is spent in states that are partially consistent with multiple representations. The state-space contiguity implies that different cognitive processes interact in ways that make them quite non-modular. As the evidence for such information-permeability expands to include not just neural subsystems but also the entire brain and even the entire organism, this radical interactionism leads one to hypothesize (...) that mental activity, and perhaps consciousness itself, is something that emerges amid the interface between one's body and one's environment. We portray mental activity as a continuous trajectory through a brain-body-environment state space, where close visitations with labelled attractors may constitute reportable self- consciousness and traversals through unlabeled regions may constitute unutterable immediate conscious awareness. (shrink)

Introductory Note: This commentary developed out of an informal discussion of Part I (2000) of Jarvilehto?s two-part Consciousness & Emotion series with Ralph Ellis at the recent Amsterdam Symposium on Feelings and Emotions (June 13?16, 2001). Part II of Jarvilehto?s series appears in the present issue. Ellis asked me to share my critical concerns with Jarvilehto?s Part I in this commentary, with an advance copy supplied to Jarvilehto, who will reply in the next issue of Consciousness & Emotion. I think (...) most of us recognize the need for pluralism in the study of complex processes such as consciousness and emotions, but to place emotions and feelings so strongly into the environment as does Jarvilehto strikes me simply as a category mistake. I acknowledge that my commentary comes from my own unique (and by some standards radical) perspective on how the field might best move forward empirically. I believe an honest understanding of how natural psychological kinds emerge from specifiable brain functions, which are obviously modulated by environmental events, is presently the most important and most poorly studied aspect of modern mind-science. I felt that Jarvilehto?s holistic approach would only further serve to discourage investigators from pursuing those important issues neuro-empirically. (shrink)

The architecture of brain, consciousness, and behavioral processes is shown to be formally similar in that all three may be conceived and depicted as Petri net patterned processes structured by a series of elements occurring or becoming active in stochastic succession, in parallel, with different rhythms of temporal iteration, and with a distinct qualitative manifestation in the spatiotemporal domain. A patterned process theory is derived from the isomorphic features of the models and contrasted with connectionist, dynamic system (...) notions. This empirically derived formulation is considered to be optimally compatible with the dual aspect theory in that the foundation of the diverse aspects would be a highly structured and dynamic process, the psychophysical neutral “ground” of mind and matter posed (but not properly determined) by dual aspect and neutral monist theories. It is methodologically sound to approach each one of these processes with specific tools and to establish concurrences in real time between them at the organismic level of analysis. Such intra-level and inter-perspective correlations could eventually constitute psychophysical bridge-laws. A mature psychology of consciousness is necessary to situate and verify the bridges required by a genuine mind-body science. (shrink)

The main idea -- The functioning of a neuron -- Brain structure and function -- The general structure of the neural network -- Instincts, emotions, free will -- The nature of mental objects -- The rise and essence of (self-)consciousness -- Artificial intelligence -- Cognitive limitations of man.

This book is the integrated presentation of a large body of work on understanding the operation of biological brains as systems.

This paper celebrates an anniversary, or near anniversary. As we write it is just more than 40 years since U. T. Place's “Is consciousness a brain process?†appeared in the British Journal of Psychology, and just less than 40 since J. J. C. Smart's “Sensations and brain processes†appeared, in its first version, in The Philosophical Review (Place 1962/1956, Smart 1962/1959).  These two papers arguably founded contemporary philosophy of mind. They defined its central preoccupation (the ontology of (...) consciousness), introduced its regnant ontology (materialism/physicalism), offered its initial logical techniques (e.g. appeals to the concepts of identity and event) as well as empirical reliances (on neuroscience), and, finally, offered its most seminal sectarian doctrine (central state materialism). No history of philosophy of mind can afford to neglect them. (See for discussion Macdonald 1989.) It is to be near both the letter of Smart's paper and the spirit of his and Place's concern for how best to develop a philosophical understanding of consciousness that we entitle our own paper 'Sensations and grain processes'. (That is not a typo, as will be seen momentarily.)            In the years since Smart's and Place's contributions, the landscape of philosophy of mind has changed in many ways. The empirical reliances of very recent philosophy of mind have expanded to include the cognitive sciences (not just neuroscience); central state materialism alternately has been displaced by causal role and functional specification theories of mind; fresh logical techniques have been introduced (e.g. the concept of supervenience); and it is less clear than it was in the 1950's whether materialism is to be preferred to some more ecumenical ontology (such as naturalism).            This paper is about the current status of the philosophy of consciousness (which we take to be phenomenal consciousness, for purposes of the paper; of which more momentarily); not so much the case for materialism (which we take to be, for the most part, complicated by considerations which we shall adduce below) as what the philosophical program for doing the philosophy of the conscious mind is and where it can, and most importantly can't, rely on cognitive science. There is quite a lot of ground to cover in a short space. So let's begin by demarcating the subject matter and outlining the paper to follow.. (shrink)

This paper celebrates an anniversary, or near anniversary. As we write it is just more than 40 years since U. T. Place's “Is consciousness a brain process?†appeared in the British Journal of Psychology, and just less than 40 since J. J. C. Smart's “Sensations and brain processes†appeared, in its first version, in The Philosophical Review (Place 1962/1956, Smart 1962/1959).  These two papers arguably founded contemporary philosophy of mind. They defined its central preoccupation (the ontology of (...) consciousness), introduced its regnant ontology (materialism/physicalism), offered its initial logical techniques (e.g. appeals to the concepts of identity and event) as well as empirical reliances (on neuroscience), and, finally, offered its most seminal sectarian doctrine (central state materialism). No history of philosophy of mind can afford to neglect them. (See for discussion Macdonald 1989.) It is to be near both the letter of Smart's paper and the spirit of his and Place's concern for how best to develop a philosophical understanding of consciousness that we entitle our own paper 'Sensations and grain processes'. (That is not a typo, as will be seen momentarily.)            In the years since Smart's and Place's contributions, the landscape of philosophy of mind has changed in many ways. The empirical reliances of very recent philosophy of mind have expanded to include the cognitive sciences (not just neuroscience); central state materialism alternately has been displaced by causal role and functional specification theories of mind; fresh logical techniques have been introduced (e.g. the concept of supervenience); and it is less clear than it was in the 1950's whether materialism is to be preferred to some more ecumenical ontology (such as naturalism).            This paper is about the current status of the philosophy of consciousness (which we take to be phenomenal consciousness, for purposes of the paper; of which more momentarily); not so much the case for materialism (which we take to be, for the most part, complicated by considerations which we shall adduce below) as what the philosophical program for doing the philosophy of the conscious mind is and where it can, and most importantly can't, rely on cognitive science. There is quite a lot of ground to cover in a short space. So let's begin by demarcating the subject matter and outlining the paper to follow.. (shrink)

The understanding of the interrelationship between brain and mind remains far from clear. It is well established that the brain's capacity to integrate information from numerous sources forms the basis for cognitive abilities. However, the core unresolved question is how information about the "objective" physical entities of the external world can be integrated, and how unifiedand coherent mental states (or Gestalts) can be established in the internal entities of distributed neuronal systems. The present paper offers a unified methodological (...) and conceptual basis for a possible mechanism of how the transient synchronization of brain operations may construct the unified and relatively stable neural states, which underlie mental states. It was shown that the sequence of metastable spatial EEG mosaics does exist and probably reflects the rapid stabilization periods of the interrelation of large neuron systems. At the EEG level this is reflected in the stabilization of quasi-stationary segments on corresponding channels. Within the introduced framework, physical brain processes and psychological processes are considered as two basic aspects of a single whole informational brain state. The relations between operational process of the brain, mental states and consciousness are discussed. (shrink)

"Of Minds and Molecules" attempts to show the difficulties in mental-state brain-state monism. By exploring the differences in meaning between mental-state sentences and brain-state sentences, and by analysing the implications of the theory of the molecular composition of matter, a kind of dualism is arrived at that no scientist should feel uncomfortable with. It is a dualism without mental substance but it does not deprive mental states of their uniqueness. Arguments are given for the propriety of asserting causal (...) connections and dependency relations between mental states and molecular states of the brain. (shrink)

To figure out whether the main empirical question “Is our brain hardwired to believe in and produce God, or is our brain hardwired to perceive and experience God?” is answered, this paper presents systematic critical review of the positions, arguments and controversies of each side of the neuroscientific-theological debate and puts forward an integral view where the human is seen as a psycho-somatic entity consisting of the multiple levels and dimensions of human existence (physical, biological, psychological, and spiritual (...) reality), allowing consciousness/mind/spirit and brain/body/matter to be seen as different sides of the same phenomenon, neither reducible to each other. The emergence of a form of causation distinctive from physics where mental/conscious agency (a) is neither identical with nor reducible to brain processes and (b) does exert “downward” causal influence on brain plasticity and the various levels of brain functioning is discussed. This manuscript also discusses the role of cognitive processes in religious experience and outlines what can neuroscience offer for study of religious experience and what is the significance of this study for neuroscience, clinicians, theology and philosophy. A methodological shift from “explanation” to “description” of religious experience is suggested. This paper contributes to the ongoing discussion between theologians, cognitive psychologists and neuroscientists. (shrink)

This paper defends cognitive neuroscience’s project of developing mechanistic explan- ations of cognitive processes through decomposition and localization against objections raised by William Uttal in The New Phrenology. The key issue between Uttal and researchers pursuing cognitive neuroscience is that Uttal bets against the possibility of decomposing mental operations into component elementary operations which are localized in distinct brain regions. The paper argues that it is through advancing and revising what are likely to be overly simplistic and incorrect (...) decompositions that the goals of cognitive neuroscience are likely to be achieved. (shrink)

An expanded and updated edition of this classic collection.

Although the brain enables us to perceive the external world and our body, it remains unknown whether brain processes themselves can be perceived. Brain tissue does not have receptors for its own activity. However, the ability of humans to acquire self-control of brain processes indicates that the perception of these processes may also be achieved by learning. In this study patients learned to control low-frequency components of their EEG: the so-called slow cortical potentials (...) (SCPs). In particular ''probe'' sessions, the patients estimated the quality of the SCP shift they had produced in the preceding trial. The correspondence between the recorded SCP amplitudes and the subjective estimates increased with training. The ability to perceive the SCPs was related to the ability to control them; this perception was not mediated by peripheral variables such as changes in muscle tonus and cannot be reduced to simple vigilance monitoring. These data provide evidence that humans can learn to perceive the neural activity of their brain. Alternative interpretations are discussed. (shrink)

What makes us conscious? Many theories that attempt to answer this question have appeared recently in the context of widespread interest about consciousness in the cognitive neurosciences. Most of these proposals are formulated in terms of the information processing conducted by the brain. In this overview, we survey and contrast these models. We first delineate several notions of consciousness, addressing what it is that the various models are attempting to explain. Next, we describe a conceptual landscape that addresses how (...) the theories attempt to explain consciousness. We then situate each of several representative models in this landscape and indicate which aspect of consciousness they try to explain. We conclude that the search for the neural correlates of consciousness should be usefully complemented by a search for the computational correlates of consciousness. (shrink)

The analysis of mental concepts suggests that the distinctionbetween the mental and the nonmental is not ontologically fundamental,and that, whereas mental processes are one and the same things as thebrain processes with which they are correlated, dispositional mentalstates depend causally on and are, thus, ''''distinct existences'''' fromthe states of the brain microstructure with which ''they'' are correlated.It is argued that this difference in the relation between an entity andits composition/underlying structure applies across the board. allstuffs and (...) class='Hi'>processes are the same thing as is described by a descriptionof their microstructure. In all cases where the manifestation of adisposition extends beyond the ''''skin'''' of the dispositional propertybearer, dispositions invariably depend causally on the structure,usually the microstructure, of the bearer. (shrink)

The theoretical approach described in a series of articles (Jarvilehto, 1998a,b,c, 1999, 2000) is developed further in relation to the problems of emotion, consciousness, and brain activity. The approach starts with the claim that many conceptual confusions in psychology are due to the postulate that the organism and the environment are two interacting systems (”Two systems theory”). The gist of the approach is the idea that the organism and environment form a unitary system which is the basis of subjective (...) experience. This starting point leads to the conception of emotions as reorganization of the organism-environment system, and entails that emotion and knowledge are only different aspects of the same process. In the first part of the article the general outline of the approach is sketched, and in a subsequent second part (Jarvilehto, 2001) the relations between emotions, consciousness, and brain activity will be discussed in detail. (shrink)

This essay examines the relationship between metabolic brain processes and psycho-physiological activities or mental activity. It is argued that metabolic brain processes, including those involved in the production of energy, proteins and other molecules are restorative and conditional, rather than directly involved in mental activities. This stance suggests that life-time acquired learning and memory is precipitated as a permanent and personal configuration of the brain, that is in principle accessible to neurophysiological examination. Current neuroscience largely (...) ignores implicitly or explicitly the search for new emergent configurations of the brain. (shrink)

1 Strange words to come from the father of materialism, a philosophy that might be self-evidently true if only there were no people. ...

Mind body, not a pseudo-problem, by H. Feigl.--Is consciousness a brain process? by U. T. Place.--Sensations and brain processes, by J. J. C. Smart.--The nature of mind, by D. M. Armstrong.--Materialism as a scientific hypothesis, by U. T. Place.--Sensations and brain processes: a reply to J. J. C. Smart, by J. T. Stevenson.--Further remarks on sensations and brain processes, by J. J. C. Smart.--Smart on sensations, by K. Baier.--Brain processes and incorrigibility, (...) by J. J. C. Smart.--Could mental states be brain processes? by J. Shaffer.--The identity of mind and body, by J. Cornman.--Shaffer on the identity of mental states and brain processes, by R. Coburn.--Mental events and the brain, by J. Shaffer.--Comment: mental events and the brain, by P. Feyerabend.--Materialism and the mind-body problem, by P. Feyerabend.--Materialism, by J. J. C. Smart.--Scientific materialism and the identity theory, by N. Malcolm.--Professor Malcolm on scientific materialism and the identity theory, by E. Sosa.--Rejoinder to Mr. Sosa, by N. Malcolm.--Mind-body identity, privacy and categories, by R. Rorty.--Physicalism, by T. Nagel.--Mind-body identity, a side issue? by C. Taylor.--Illusions and identity, by J. M. Hinton.--Bibliography (p. [259]-261). (shrink)