title: Strain differences in acquisition and extinction of fear responses in rats.
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D003214:Conditioning, Classical; D004924:Escape Reaction; D005108:Extinction, Psychological; D005239:Fear; D005260:Female; D008297:Male; D051381:Rats; D011930:Reaction Time; D013045:Species Specificity; D013997:Time Factors