Document Type

Thesis

Date of Degree Completion

Spring 1973

Degree Name

Master of Science (MS)

Department

Experimental Psychology

Committee Chair

Terry L. Devietti

Second Committee Member

Donald R. Shupe

Third Committee Member

Philip Tolin

Abstract

Varied lengths of noncontingent foot shock (NCFS) followed by an ECS or NO ECS were presented 24 hours after fear conditioning to investigate the state dependency hypothesis. The hypothesis that the NCFS would interact with ECS to produce a transient attenuation of fear conditioning was not supported. Results were discussed in terms of the possibility that the state dependency hypothesis applies only to certain levels of brain excitation when NCFS and ECS are used to induce brain state changes.

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