title: Pavlovian conditioning and preparedness: effects of initial fear level.
mesh_terms: D000293:Adolescent; D000328:Adult; D003214:Conditioning, Classical / Q000502:physiology*; D005239:Fear / Q000502:physiology*; D005260:Female; D005712:Galvanic Skin Response / Q000502:physiology*; D006801:Humans; D008297:Male; D011582:Psychological Theory