Document Type

Thesis

Date of Degree Completion

Spring 1971

Degree Name

Master of Science (MS)

Department

Psychology

Committee Chair

Terry DeVietti

Second Committee Member

Vaughn Gerald Reed

Third Committee Member

Donald R. Shupe

Abstract

The present experiment examined the effects of CS habituation and two different levels of CS duration (60 versus 6 sec) on the directional modification of the conditioned cardiac response in the guinea pig. The results indicated that the only reaction to the CS, regardless of prior habituation or CS duration, was a decelerative conditioned HR response. However, habituation to a CS prior to classical aversive conditioning was found to attenuate the magnitude of the bradycardia CR that developed. The bradycardia CR was discussed in terms of being a cardiac component of the orienting response.

Language

English

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