ABSTRACT
I. INTRODUCTION The discussion in the preceding chapter has provided a foundation of the necessary physics, which must serve as a reference point to which we shall anchor all studies of sensory communication. The energetics and organization of the physical stimulus are, as has been pointed out, the only meaningful referrents for all of the stages of transduction and co ding that follow. However, before we can meaningfully discuss transduction and the coding neural signals, it is necessary that we make some further preparatory steps. In this chapter, we shall concern ourselves with the structure of those highly specialized receptor structures in which these transduction actions occur and the neural pathways which convey information from them to the central nervous system.
