Age, sex, and strain differences in the aversive threshold to grid shock in the rat.
D000367:Age Factors; D000818:Animals; D001362:Avoidance Learning; D001522:Behavior, Animal; D001835:Body Weight; D004597:Electroshock; D004924:Escape Reaction; D005260:Female; D008297:Male; D051381:Rats; D012737:Sex Factors; D013045:Species Specificity; D013997:Time Factors