Contrary to received opinion among philosophers, psychologists, and neuroscientists, conscious duality as a principle of brain organization is neither incoherent nor demonstrably false. The present paper begins by reviewing the history of the theory and its anatomical basis and defending it against the claim that it rests upon an arbitrary decision as to what constitutes the biological substratum of mind or person.

Supposons qu'il soit possible de transplanter les centres de Ia douleur de Jones dans le cerveau de Smith. A mi-chemin pendant!'operation, on teste ces centres de Ia douleur en les stimulant électriquement in vitro. Y aurait-il de Ia douleur? L'argument de cet article est qu'il n'y en aurait pas, parce que Ia douleur doit avoir un possesseur. Sinon, il ne peut arriver que les centres de Ia douleur se déchargeant dans un cerveau soient en eux-mêmes Ia douleur. On peut logiquement (...) transférer le mécanisms de Ia douleur, mais non Ia douleur elle-mêmes. Ainsi le materialisme est faux.Suppose we live in a very advanced age of neurosurgical skills. We have a patient, Jones, with intractable pain. We have a second patient, Smith, with a long history of unintentional self-injury due to congenital absence of pain centres. So we decide to do double service by transplanting Jones's pain centres into Smith's brain. (shrink)

1 Matching Templates and Feature Analysers. 2 Modes of Perception in Left and Right Cerebral Hemispheres. 3 Identification and Recognition. 4 Chess Plying Machines.

Philosophers of religion divide neatly into two camps on the problem of evil: those who think it fatal to the concept of a loving God and those who do not. The latter have established a wide array of defensive positions down through the centuries, but none that has proved impregnable to sceptical attack. In his new book Mr Hick wisely abandons these older fortifications and falls back on highly mobile reserves. Not for him the ‘Fall of Man’ thesis, with its (...) unexplained choice to give up finite perfection; nor the Plotinian principle of plenitude, evil being an inevitable petering out of God's goodness; nor the ‘aesthetic’ gambit where the horrors of life constitute mere ‘shadows’ designed to highlight the beauty of creation; nor the ‘cosmic Toryism’, as someone called it, of Leibniz's ‘best of all possible worlds’; nor even, one might say gratefully, the gaseous obscurantism of Karl Barth's ‘das Nichtige’. All of these defences, and others besides, Mr Hick lumps together under what he calls ‘the majority report’ in Christian theodicy: the Augustinian tradition or type. In place of these venerable ramparts Hick elects the more fluid defence afforded, he thinks, by Irenaeus, Eastern Christianity and, in modern times, by Schleiermacher and a few contemporary thinkers. (shrink)

Supposons qu'il soit possible de transplanter les centres de Ia douleur de Jones dans le cerveau de Smith. A mi-chemin pendant!'operation, on teste ces centres de Ia douleur en les stimulant électriquement in vitro. Y aurait-il de Ia douleur? L'argument de cet article est qu'il n'y en aurait pas, parce que Ia douleur doit avoir un possesseur. Sinon, il ne peut arriver que les centres de Ia douleur se déchargeant dans un cerveau soient en eux-mêmes Ia douleur. On peut logiquement (...) transférer le mécanisms de Ia douleur, mais non Ia douleur elle-mêmes. Ainsi le materialisme est faux.Suppose we live in a very advanced age of neurosurgical skills. We have a patient, Jones, with intractable pain. We have a second patient, Smith, with a long history of unintentional self-injury due to congenital absence of pain centres. So we decide to do double service by transplanting Jones's pain centres into Smith's brain. (shrink)

Many writers have been struck by what Ronald Melzack, a leading investigator of pain mechanisms, calls the ‘puzzle’ of pain. Thus the surgeon Leriche, often quoted in this connection, says: Defence reaction? Fortunate warning? But as a matter of fact the majority of illnesses, even the most serious, attack us without warning. Sickness is nearly always a drama in two acts, of which the first takes place, cunningly enough, in the dim silence of bur tissues, with the lights out, before (...) the candles have been lit. When pain makes its appearance, we are almost in the second act…… Pain merely makes more distressing and sad a situation already long lost…… In fact, pain is always a baleful gift, which reduces the subject of it, and makes him more ill than he would be without it. (shrink)

In "Consciousness Explained," Dennett (1991) denies that split-brain humans have double consciousness: he describes the experiments as "anecdotal." In attempting to replace the Cartesian Theatre of the Mind" with his own "Multiple Drafts" view of consciousness, Dennett rejects the notion of the mind as a countable thing in favour of its being a mere "abstraction." His criticisms of the standard interpretation of the split-brain data are analyzed here and each is found to be open to objections. There exist people who (...) have survived left ["dominant"] cerebral hemispherectomy; by Dennett's criteria, they would not have minds. (shrink)

Glenn Pearce, labels the identification of the firing of one's pain centres in the brain with feeling pain ‘a naive view,’ the refutation of which cannot much threaten any serious version of materialism. But in fact at least a dozen proponents of contemporary materialism have already hypothesized the identification of feeling pain with activation of a specific neural mechanism, although they picked the wrong mechanism, namely C-fibres. Just to take a recent example, James Cornman and Keith Lehrer, trying to get (...) around the objection to the identity theory that the language of neural processes and the language of feeling pains belong to different linguistic categories, suggest that the materialist could devise a new term to refer to the same entity across categories: ‘fibain.’They write,He would then claim that there are fibains, that is, entities with those properties usually associated with pains, and also with the properties usually associated with firing C-fibers. He can, then, avoid category mistakes by saying that what are thought to be pains and what are thought to be firing C-fibers are really fibains. (shrink)

Borowski ("identity and personal identity," "mind", Volume lxxxv, Number 340, October 1976, Pages 481-502) claims that if x's brain were successfully transplanted into y's body, Our judgment of who the survivor z really is would be relative to our interest in z: for example, If the body y is that of an athlete or film actor, We would say it is y if we are athletic coaches or film directors. This view completely overlooks that acting talents and athletic skills are (...) also stored in the brain. If my brain controlled pele's body, Or laurence olivier's, I could not play football or act well. (shrink)