Relations Between Excitation and Inhibition, Delimitation Between Excitation and Inhibition, Experimental Neuroses in Dogs20
This chapter distinguishes two kinds of inhibition in the work of the cerebral hemispheres—external and internal. The first is an exact repetition of the well-known inhibition in the physiology of the lower part of the central nervous system, which appears when stimuli acting on the various centres and evoking different nervous activities, meet; the second can be inherent only in the cerebral hemispheres. There are two conditions, or to be more precise, one condition, the presence or absence of which determines whether the impulse brought into the cells of the cerebral hemispheres from the outside chronically provokes a process of excitation or a process of inhibition. In other words, the impulse will in one case become positive and in the other negative. In the chapter, Pavlov implies overstrain of the basic nervous processes of excitation and inhibition and of their mobility in dogs.