Facilitation of Avoidance Behavior by Unavoidable Shocks in Normal and Amygdalectomized Monkeys

Abstract
When shocks were occasionally delivered regardless of S's behavior, the avoidance response rates of both amygdalectomized and control monkeys were markedly increased. Amygdalectomized Ss showed at least as great a facilitation as control Ss. The results of this test do not support the general notion that amygdalectomized Ss are relatively insensitive to the effects of aversive stimuli.

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