Initially, we perceive an indefinite extension imprecisely, a spread C ; this perception can be visual, aural, or tactile.

The starting-point of Plutarch's dialogue de communibus notitiis is a claim made by the Stoics that Providence sent Chrysippus to remove the confusion surrounding the ideas of ννοια and πρληψισ before the subtleties of Carneades were brought into play. Unfortunately our surviving information on the subject is so much less full than could be desired that it has again returned to an obscurity from which there are only two really detailed modern attempts to remove it. The one, by L. Stein (...) , is most unsatisfactory; the other, by A. Bonhöffer , though of the greatest value in many ways, is vitiated by the fact that it constructs a system from the use of the words by Epictetus and then attempts to attach this system to the old Stoa in the face of the evidence of the doxographers, which is emended or violently interpreted to suit Epictetus. Even if Epictetus were in general a good authority for the technicalities of Chrysippus—and in the opinion of H. von Arnim he is not— this would not be a sound method of procedure. The only safe way is to take first the statements which can be attached to the Old Stoa, and having obtained our results from these, to see whether Epictetus does in fact agree. (shrink)

This paper discusses the important paper by Paul Thagard on the pathway version of mechanistic explanation that is currently used in chemical explanation. The author claims that this method of explanation has a respectable pedigree and can be traced back to the Chemical Revolution in the arguments used by the Lavoisier School in their theoretical duels with Richard Kirwan, the proponent of a revised phlogistonian theory. Kirwan believed that complex chemical reactions could be explained by recourse to affinity tables that (...) catalogued the attraction that various simple bodies possessed towards each other. To explain was in effect to make a delayed prediction, it is not enough just to show how a phenomenon fits into the discernible patterns of the world. Lavoisier, Fourcroy and their colleagues used pathway reasoning, although disguising this fact by suggesting that affinities varied when subjected to n-body situations. (shrink)

This paper is a summary and extension of almost four decades of research directed toward an explication of the human mind. To achieve a precise, testable proposition that defines mind, I follow a historically rich tradition of materialism. First, an empirical basis is established wherein electropsychologically measured events from the brain, eyes, somatic and speech musculature occur almost simultaneously during a variety of cognitions. The inference is that these covert reactions form components of neuromuscular circuits governed by cybernetic principles. Conversely, (...) when the striated musculature is totally inactive, cognitions are absent. The conclusion is that muscular components of the circuits are necessary for cognitions. An explication of the human mind emerges as the selective interaction of bodily systems to generate contents of mind and to program covert and overt behavior. Clinical and educational applications follow. (shrink)