Online research in philosophy

“Biological Naturalism” is a name I have given to an approach to what is traditionally called the mind-body problem. The way I arrived at it is typical of the way I work: try to forget about the philosophical history of a problem and remind yourself of what you know for a fact. Any philosophical theory has to be consistent with the facts. Of course, something we think is a fact may turn out not to be, but we have to start with our best information. Biological Naturalism is a theory of mental states in general but as this book is about consciousness I will present it here as a theory of consciousness.

In this article, I examine and criticize John Searle's account of the relation between mind and body. Searle rejects dualism and argues that the traditional mind-body problem has a 'simple solution': mental phenomena are both caused by biological processes in the brain and are themselves features of the brain. More precisely, mental states and events are macro-properties of neurons in much the same way that solidity and liquidity are macro-properties of molecules. However, Searle also maintains that the mental is 'ontologically irreducible' to the physical, a view which follows from his understanding of the status and nature of consciousness. Consciousness is essential to the mind; subjectivity is essential to consciousness; and no purely objective, physical description of consciousness could ever capture or explain its essentially subjective character. None the less, Searle maintains that irreducibility is a 'trivial' result of our 'definitional practices' and is entirely compatible with his theory. I contend that this latter claim is based on an equivocation: Searle's conclusion only seems to follow because he alters and trivializes what philosophers ordinarily mean by 'reduction'. I also maintain that Searle's position is reductionist in the ordinary, nontrivial sense. For this reason, his theory fails to accommodate the subjective character of consciousness and fails to solve the traditional mind-body problem. Finally, I briefly discuss Searle's claim that he is not an epiphenomenalist, and argue that given the assumptions of his view there is no interesting causal role for consciousness in the physical world.

Biological naturalism claims that all psychological phenomena can be causally, though not ontologically, reduced to neurological processes, where causal reduction is usually understood in terms of supervenience. After presenting John Searle’s version of biological naturalism in some detail, I argue that the particular supervenience relation on which this account depends is dubious. Specifically, the fact that either realism or nominalism is the case implies that there is one fact about belief that does not supervene on neurophysiological processes. Biological naturalism is thereby defeated because it cannot account for belief. Ialso address three likely objections to this argument.

John Searle claims that intentional states require a set of non-intentional background capacities in order to function. He insists that this 'Background' should be construed naturalistically, in terms of the causal properties of biological brains. This paper examines the relationship between Searle's conception of the Background and his commitment to biological naturalism. It is first observed that the arguments Searle ventures in support of the Background's existence do not entail a naturalistic interpretation. Searle's claim that external realism is part of the Background is then addressed. It is shown that this claim implies an implicit understanding of reality, which is presupposed by the intelligibility of any objective, scientific description. As a consequence, Searle's account of the Background's role is incompatible with his insistence that it can be comprehensively characterized in terms of biological capacities. I conclude by showing that, if the tension is resolved by rejecting biological naturalism, Searle's position takes a substantial step in the direction of Heideggerian phenomenology, a move Searle has emphatically resisted in his various exchanges with Hubert Dreyfus.

(I) John Searle's conception of consciousness in the 'Mind the Gap' issue of the Journal of Consciousness Studies remains short on content, no advance on either materialism or traditional dualism. Still, it is sufficiently contentful to be self-contradictory. And so his Biological Subjectivity on Two Levels, like materialism and dualism, needs replacing by a radically different conception of consciousness -- such as Consciousness as Existence. (II) From his idea that we can discover 'gaps', seeming absences of causal circumstances, in our experience of deciding and acting, Searle is led to the positing of a self and to mysterious causing. (III) In fact philosophers of determinism and freedom over three centuries have concerned themselves with what are now termed 'gaps'. Searle's advance is a useful terminological one. Compatibilist philosophers of freedom, contrary to what is said, have not missed any point at all. A successor to both Compatibilism and Incompatibilism is needed. (IV) Searle's previous account of deciding and acting in Biological Subjectivity on Two Levels does indeed fail because of its epiphenomenalism. (V) The culmination of his paper, his preferred hypothesis now about deciding and acting, is that down-up causation is true of it but not left-right causation. Quantum Theory as often interpreted doesn't work down-up but does work left-right. The hypothesis is entirely in the tradition of the Incompatibilist and Libertarian philosophers of determinism and freedom, whom Searle has joined, but is factually incredible.

John Searle begins his recent article “Dualism Revisited” by stating his belief that the philosophical problem of consciousness has a scientific solution. He then claims to refute dualism. It is therefore appropriate to examine his arguments against dualism from a scientific perspective.

In recent years, Robert Adams and Richard Swinburne have developed an argument for God’s existence from the reality of mental phenomena. Call this the argument from consciousness (AC). My purpose is to develop and defend AC and to use it as a rival paradigm to critique John Searle’s biological naturalism. The article is developed in three steps. First, two issues relevant to the epistemic task of adjudicating between rival scientific paradigms (basicality and naturalness) are clarified and illustrated. Second, I present a general version of AC and identify the premises most likely to come under attack by philosophical naturalists. Third, I use the insights gained in steps one and two to criticize Searle’s claim that he has developed an adequate naturalistic theory of the emergence of mental entities. I conclude that AC is superior to Searle’s biological naturalism.

John Searle's The Rediscovery of the Min is a sustained attempt to locate the mind and the mental firmly in the realm of the physical. Consciousness ,claims Searle, is just an ordinary biological feature of the world ... More specifically,``[t]he mental state of consciousness is just an ordinary biological, that is, physical featureof the brain''. Searle is adamant: ``Consciousness,to repeat, is a natural biological phenomenon''.

“Biological Naturalism” is a name I have given to an approach to what is traditionally called the mind-body problem. The way I arrived at it is typical of the way I work: try to forget about the philosophical history of a problem and remind yourself of what you know for a fact. Any philosophical theory has to be consistent with the facts. Of course, something we think is a fact may turn out not to be, but we have to start with our best information. Biological Naturalism is a theory of mental states in general but as this book is about consciousness I will present it here as a theory of consciousness.