title: Test of the monotonicity hypothesis concerning infantile stimulation and emotional reactivity.
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D003345:Corticosterone / Q000097:blood*; D003423:Critical Period, Psychological; D004597:Electroshock; D004777:Environment; D006234:Handling, Psychological; D051381:Rats
chemical_list: D003345:Corticosterone