ONTOGENY OF DEFENSIVE REACTIONS IN NORWAY RATS
ONTOGENY OF DEFENSIVE REACTIONS IN NORWAY RATS
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DOI:
10.1037/h0077224
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发表时间:
1976-01-01
期刊:
影响因子:
--
通讯作者:
HIRSCH, SM
中科院分区:
文献类型:
--
作者:
BRONSTEIN, PM;HIRSCH, SM
Young rats of several ages were presented with stimuli (a caged domestic cat, a footshock and a suddenly moving object) known to be aversive to adults and disruptive of behavior in mature animals. Rats 20 days old were relatively unaffected by these events, while rats aged 30 days and older tended to reduce their locomotion and freeze upon the presentation of these cues. These data are consistent with Bolles'' hypothesis that shock-elicited responses are innate defensive reactions. It is suggested that the inefficient passive avoidance learning in juvenile rats may result from their deficit in shock-induced freezing.