In recent years, several symposia have been held on subjects relating to the general theme of information processing in the nervous system. It is now widely recognized that this whole field is rapidly developing and changing in a manner beyond our imaginings of a few years ago. When confronted with conceptual revolutions of this kind, it is justifiable to have a continued on-going discourse and disputation so that there is maximum opportunity for interaction between the leaders of thought in all the re lated disciplines. The conference organized by K. N. Leibovic, and held at the State...