Conditional Reflex Studies in Depression

Abstract

A conditional reflex test procedure was described which enabled us to reveal and measure the characteristic differences among neurotic, endogenous and schizophrenic depressions. The differences found among the depressive groups were expressed in conditional and unconditional reflex variables. The revealed changes direct attention to the possible pathophysiological basis of the different depressive conditions. This is suggested by the behavioural conditioning method but can only be proven through neurophysiological experiments.