title: Observational conditioning of snake fear in rhesus monkeys.
mesh_terms: D000818:Animals; D003214:Conditioning, Classical; D005239:Fear; D005260:Female; D006801:Humans; D008253:Macaca mulatta; D008297:Male; D008960:Models, Psychological; D010698:Phobic Disorders / Q000209:etiology*; D012911:Snakes