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Avoidance learning under delayed shock termination in prenatally x‐irradiated rats
Author(s) -
Tamaki Yoshitaka,
Inouye Minoru
Publication year - 1981
Publication title -
developmental psychobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.055
H-Index - 93
eISSN - 1098-2302
pISSN - 0012-1630
DOI - 10.1002/dev.420140202
Subject(s) - avoidance learning , irradiation , gestation , stimulus (psychology) , psychology , medicine , pregnancy , biology , physics , nuclear physics , genetics , psychotherapist
Groups of MP1 male albino rats were exposed to x‐irradiation of 200 rad on Day 17 of gestation. Irradiated and control rats were trained in a shuttlebox with either immediate or .5‐sec delayed termination of both the electric shock (US) and the conditioned stimulus (CS) on escape trials. An avoidance response always produced prompt CS termination. Irradiated rats showed a higher degree of avoidance behavior than controls and, under the delay condition, tended to run rapidly in the CS‐US interval.