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- Neil Campbell Manson (2002). Consciousness-Dependence and the Explanatory Gap. Inquiry 45 (4):521-540.Contrary to certain rumours, the mind-body problem is alive and well. So argues Joseph Levine in Purple Haze: The Puzzle of Consciousness . The main argument is simple enough. Considerations of causal efficacy require us to accept that subjective experiential, or 'phenomenal', properties are realized in basic non-mental, probably physical properties. But no amount of knowledge of those physical properties will allow us conclusively to deduce facts about the existence and nature of phenomenal properties. This failure of deducibility constitutes an explanatory problem - an explanatory gap - but does not imply the existence of immaterial mental properties. Levine introduced this notion of the explanatory gap almost two decades ago. Purple Haze allows Levine to situate the explanatory gap in a broader philosophical context. He engages with those who hold that the explanatory gap is best understood as implying anti-materialist metaphysical conclusions. But he also seeks to distance himself from contemporary naturalistic philosophical theorizing about consciousness by arguing that reductive and eliminative theories of consciousness all fail. Levine's work is best seen as an attempt to firmly establish a definite status for the mind-body problem, i.e. that the mind-body problem is a real, substantive epistemological problem but emphatically not a metaphysical one. Because Levine's work is tightly focused upon contemporary Anglophone analytic philosophy of mind, there is little discussion of the broader conceptual background to the mind-body problem. My aim here is to place Levine's work in a broader conceptual context. In particular, I focus on the relationship between consciousness and intentionality in the belief that doing so will allow us better to understand and evaluate Levine's arguments and their place in contemporary theorizing about mentality and consciousness.Reading list | Discuss | Edit | Categorize |My bibliography
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The thesis that there is a troublesome explanatory gap between the phenomenal aspects of experiences and the underlying physical and functional states is given a number of different interpretations. It is shown that, on each of these interpretations, the thesis is false. In supposing otherwise, philosophers have fallen prey to a cognitive illusion, induced largely by a failure to recognize the special character of phenomenal concepts.
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| | Other links: mind.oxfordjournals.org jstor.org ingentaconnect.com mind.oupjournals.org dx.doi.org | Scholar | At my library | More options ... The “explanatory gap” is proposed to be the “hard problem” of consciousness research and has generated a great deal of recent debate. Arguments brought forward to reveal this gap include the conceivability of zombies or the “super-neuroscientist” Mary. These are supposed to show that the facts of consciousness are not a priori entailed by the microphysical facts. Similar arguments were already proposed by emergence theories in the context of the debate between mechanism and vitalism. According to synchronic emergentism, the property of a system is emergent, when it cannot - in principle - be deduced from a complete description of the system’s components. Here, I argue that apart from phenomenal properties there are many other properties that, even though they are clearly physical, are not reductively explainable either. The explanatory gap of consciousness is therefore only a part of a much more general problem.
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| | Other links: cogprints.org | Scholar | More options ... The topic of the essay is the “explanatory gap” between, on one side, descriptions of conscious states from 1st person perspective, termed as phenomenal (P-) consciousness; and on the other side, the descriptions of conscious states in representational theories of mind, from 3rd person perspective, termed as access (A-) consciousness. The main source of the explanatory gap between P-consciousness and A-consciousness is the methodology of functionalism, accepted in almost contemporary representational theories. I argue for the following: (1) The principles of materialist ontology, accepted in representational theories of mind, are true. But materialism is not necessary linked with functionalist research methods. The only reasonable consequence from the existence of the “explanatory gap” is that functionalism should be replaced with more adequate methodological approaches. (2) One such non-functionalist approach, termed as “aesthesionomic approach”, is proposed. The central idea is that phenomenal conscious states should be first described in objective terms (from 3rd person perspective). Only on base of such a preliminary objective description of phenomenal conscious states, the description of representational mechanisms (able to realize these states) will not give rise to an “explanatory gap”.
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| | Other links: cogprints.org | Scholar | More options ... ne ’ s a r gume nt s i n de a l i ng wi t h e ve n a s hi ghl y i nt r a c t a bl e an issue as the mystery of consciousness. The mind-body problem in a contemporary guise is rooted in two prima facie plausible but incompatible propositions that philosophers have reached: (1) Some form of materialism or physicalism is true. (2) Phenomenal consciousness, raw feel, or qualia cannot be explained physicalistically. The traditional strategy for solving the problem is simply to reject one or the other of these propositions. Thus some philosophers reject (1) and become dualists accordingly, and others reject (2) and become materialists accordingly. Levine, however, ventures to accept both of them at the same time. That is, while he defends materialism he also believes that we can never make a priori derivations from physical facts to phenomenal facts. Chapter 1 of the book is devoted to establishing (1). In order to define his materialism Levine reflects nested dilemmas that materialism in general confronts. The di l e mma s go a s f ol l ows..
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| | Scholar | At my library | More options ... The explanatory gap . Consciousness is a mystery. No one has ever given an account, even a highly speculative, hypothetical, and incomplete account of how a physical thing could have phenomenal states. (Nagel, 1974, Levine, 1983) Suppose that consciousness is identical to a property of the brain, say activity in the pyramidal cells of layer 5 of the cortex involving reverberatory circuits from cortical layer 6 to the thalamus and back to layers 4 and 6,as Crick and Koch have suggested for visual consciousness. (See Crick (1994).) Still, that identity itself calls out for explanation! Proponents of an explanatory gap disagree about whether the gap is permanent. Some (e.g. Nagel, 1974) say that we are like the scientifically naive person who is told that matter = energy, but does not have the concepts required to make sense of the idea. If we can acquire these concepts, the gap is closable. Others say the gap is uncloseable because of our cognitive limitations. (McGinn, 1991) Still others say that the gap is a consequence of the fundamental nature of consciousness.
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| | Other links: links.jstor.org jstor.org | Scholar | At my library | More options ... This paper examines a paradigm case of allegedly successful reductive explanation, viz. the explanation of the fact that water boils at 100°C based on facts about H2O. The case figures prominently in Joseph Levine’s explanatory gap argument against physicalism. The paper studies the way the argument evolved in the writings of Levine, focusing especially on the question how the reductive explanation of boiling water figures in the argument. It will turn out that there are two versions of the explanatory gap argument to be found in Levine’s writings. The earlier version relies heavily on conceptual analysis and construes reductive explanation as a process of deduction. The later version makes do without conceptual analysis and understands reductive explanations as based on theoretic reductions that are justified by explanatory power. Along the way will be shown that the bridge principles — which are being neglected in the explanatory gap literature — play a crucial role in the explanatory gap argument.
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| | Scholar | More options ... Confronted with the apparent explanatory gap between physical processes and consciousness, there are many possible reactions. Some deny that any explanatory gap exists at all. Some hold that there is an explanatory gap for now, but that it will eventually be closed. Some hold that the explanatory gap corresponds to an ontological gap in nature.
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| | Other links: consc.net | Scholar | At my library | More options ... According to the self-representational theory of consciousness – self-
representationalism for short – a mental state is phenomenally conscious when, and
only when, it represents itself in the right way. In this paper, I consider how self-
representationalism might address the alleged explanatory gap between phenomenal
consciousness and physical properties. I open with a presentation of self-
representationalism and the case for it (§1). I then present what I take to be the most
promising self-representational approach to the explanatory gap (§2). That approach
is threatened, however, by an objection to self-representationalism, due to Levine,
which I call the just more representation objection (§3). I close with a discussion of
how the self-representationalist might approach the objection (§4).
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| | Scholar | At my library | More options ... Conscious experience presents a deep puzzle. On the one hand, a fairly robust materialism must be true in order to explain how it is that conscious events causally interact with non-conscious, physical events. On the other hand, we cannot explain how physical phenomena give rise to conscious experience. In this wide-ranging study, Joseph Levine explores both sides of the mind-body dilemma, presenting the first book-length treatment of his highly influential ideas on the "explanatory gap," the fact that we can't explain the nature of phenomenal experience in terms of its physical realization. He presents a careful argument that there is such a gap, and, after providing intriguing analyses of virtually all existing theories of consciousness, shows that recent attempts to close it fall short of the mark. Levine concludes that in the foreseeable future consciousness will remain a mystery.
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| | Other links: ingentaconnect.com | Scholar | At my library | More options ... The aim of this book is to defend ‘explanatory gap’, Levine’s own influential notion in the philosophical studies of phenomenal consciousness. The entire book proves how clear and systematic are Levine’s arguments in dealing with even as highly intractable an issue as the mystery of consciousness. The mind-body problem in a contemporary guise is rooted in two prima facie plausible but incompatible propositions that philosophers have reached: (1) Some form of materialism or physicalism is true. (2) Phenomenal consciousness, raw feel, or qualia cannot be explained physicalistically. The traditional strategy for solving the problem is simply to reject one or the other of these propositions. Thus some philosophers reject (1) and become dualists accordingly, and others reject (2) and become materialists accordingly. Levine, however, ventures to accept both of them at the same time. That is, while he defends materialism he also believes that we can never make a priori derivations from physical facts to phenomenal facts.
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| | Scholar | More options ... Discussion of Neil Campbell Manson, Consciousness-dependence and the explanatory gap
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