Modification of conditional behavior by prior experience.
D000818:Animals; D001285:Atropine / Q000494:pharmacology; D001522:Behavior, Animal; D003213:Conditioning, Psychological; D004597:Electroshock; D008297:Male; D051381:Rats; D012054:Reinforcement, Psychology; D012601:Scopolamine / Q000494:pharmacology*
D001285:Atropine; D012601:Scopolamine
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