Accession Number : AD0617646

Title :   HEART RATE CONDITIONING IN THE RAT,

Corporate Author : WASHINGTON UNIV ST LOUIS MO SCHOOL OF MEDICINE

Personal Author(s) : Fehr,Fred S. ; Stern,John A.

Report Date : 04 OCT 1964

Pagination or Media Count : 13

Abstract : Classical conditioning procedures were used to evaluate the development and extinction of conditioned HR changes in the albino rat. The data suggest that the experimental group (a) developed a generalized HR response to the apparatus, their HR remaining consistently (and on Day 4 of conditioning, significantly) above that of the control group during the 2 hr pre-conditioning period; (b) showed an anticipatory HR increase during the CS presentation which was maximum after 4 to 6 sec of CS and was then followed by increases of less magnitude until just prior to and during the UCS period (on non reinforced trials); (c) demonstrated a localized conditioned HR response immediately post-UCS (on non reinforced trials) which appeared to reflect most adequately conditioned HR changes; (d) showed signs of retention of conditioned HR responses on Day 5 and 30 of extinction. (Author)

Descriptors :   (*PULSE RATE, CONDITIONED RESPONSE), (*CONDITIONED RESPONSE, PULSE RATE), HEART, FEAR, ANXIETY, EMOTIONS, STIMULATION(PHYSIOLOGY), PSYCHOPHYSIOLOGY, AUTONOMIC NERVOUS SYSTEM, ANALYSIS OF VARIANCE, RATS

Distribution Statement : APPROVED FOR PUBLIC RELEASE