Accession Number : AD0645550

Title :   THE EFFECT OF HYPOPHYSECTOMY ON AVOIDANCE BEHAVIOR AND ON MOLECULAR NEUROCHEMISTRY.

Descriptive Note : Research rept.,

Corporate Author : YORK UNIV TORONTO (ONTARIO) MOLECULAR PSYCHOBIOLOGY LAB

Personal Author(s) : Gaito,John ; Mottin,James ; Davison,James H. ; Rigler,Joanne

Report Date : 29 NOV 1966

Pagination or Media Count : 17

Abstract : Two shock avoidance conditioning experiments were conducted to determine the effects of hypophysectomy on conditioning and on brain neurochemistry. The dependent variables were: number of avoidances, latency, and trial of first avoidance; amounts of RNA, DNA, and proteins; ratios of these three; the specific activity of protein and tissue pool fractions; and the relative specific activity of the protein fraction. There was a tendency for hypophysectomized rats to show fewer avoidances. As in previous experiments there was a suggestion that the medial and posterior ventral cortices may contribute to this type of conditioning. (Author)

Descriptors :   (*BRAIN, LEARNING), (*BEHAVIOR, PITUITARY GLAND), CONDITIONED RESPONSE, DEOXYRIBONUCLEIC ACIDS, RIBONUCLEIC ACIDS, PROTEINS, EXCISION, NEUROLOGY, PSYCHOPHYSIOLOGY, RATS, CANADA

Subject Categories : Psychology
      Biochemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE