Abstract

Analytic functions, typified by reflexes, use stable inherited structures which are organized for adjustments in behavioral space and time. Individually acquired integrative functions, typified by conditioning, symbolism, and reasoning, are wholly internal and may use any nervous tissue not differentiated for other specific activities. They must be defined relati‐vistically. The highest members of both classes are in the cerebral cortex, the first in the relatively stable projection centers, the second in the more labile areas of elaboration where there is no inflexible localization of function. When consciousness emerges within the second class, the mechanism employed probably must be described in accordance with still unknown relativistic principles