Abstract

This volume contains reports on work sessions sponsored by MIT. Participants include distinguished neuroscientists and specialists in communications and psychology from North and South America and Europe. Of particular interest to philosophers are reports on the biology of drives and on neural coding. In the former, evidence is presented to show that the same unfamiliar stimulus may elicit either curiosity or fear behavior in members of the same species, and that fear responses, for example, may be elicited either by discrepancy with a neuronal model, or by concordance with one. Moreover, there is evidence that these responses may be acquired independently of experience of those stimulus conditions. The authors suggest that generalizations cannot be made on the basis of a single behavior type paradigm, like feeding behavior, for example. The report on neural coding reviews work on such questions as: What counts as a code in the context of a nervous system? What modes of representations are theoretically plausible? Are there rules about the kinds of codes and the domains in time and space where they are used? It is now held that the nervous system uses neither an infinity of codes nor just a few, but many. In both work sessions the definition of key terms poses an important, and unsolved problem.--M. B. M.