Instrumental and cardiac indices of Pavlovian fear conditioning as a function of US duration.
- 1 January 1966
- journal article
- research article
- Published by American Psychological Association (APA) in Journal of Comparative and Physiological Psychology
- Vol. 62 (1) , 15-20
- https://doi.org/10.1037/h0023495
Abstract
[Subjects] Ss received avoidance training to a visual signal in a shuttle box, and, while immobilized with tubocurarine chloride, were given Pavlovian fear conditioning with 2 tones. The 2 different tone CSs [conditional stimulus] were of equal duration; a trace procedure was used wherein 1 was paired with a 0.5-sec. shock and 1 with a 50.0-sec. shock. During Pavlovian fear conditioning, EKGs [Electrocardiogram] were recorded. Later, in the shuttle box, Ss were tested during avoidance extinction with all 3 stimuli. Even though Ss did not show differential cardiac conditioning to the tones, they hurdled the barrier more quickly in response to the tone previously paired with the 50.0-sec. shock than to the tone paired with the 0.5-sec. shock.This publication has 3 references indexed in Scilit:
- Effects of discriminative Pavlovian fear conditioning upon previously or subsequently acquired avoidance responding.Journal of Comparative and Physiological Psychology, 1965
- Extinction of a Human Cardiac-Response during Avoidance-ConditioningThe American Journal of Psychology, 1956
- Fear as an intervening variable in avoidance conditioning.Journal of Comparative Psychology, 1946