Temporal effects of conditioned fear on the eyelid reflex.

Abstract
"An experiment was conducted to determine whether a conditioned emotional response could augment a reflex response to another stimulus within 500 msec. in order to check on the possibility that differential conditioned emotional responses might lead to different levels of drive (D) at the time of occurrence of the CR in classical eyelid conditioning." Found that the emotional response had no effect at 500 msec., but significantly raised the amplitude of response at 4500-msec. interval. "These findings were interpreted as supporting a position which assumes that habit strength in classical aversive conditioning is a function of the intensity of the UCS." (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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