FREQUENCY AND INTENSITY OF PRE-SHOCK EXPERIENCES AS DETERMINANTS OF FEARFULNESS IN AN APPROACH-AVOIDANCE CONFLICT.
D001007:Anxiety; D001008:Anxiety Disorders; D001362:Avoidance Learning; D005239:Fear; D051381:Rats; D012106:Research; D013312:Stress, Physiological
ANXIETY; AVOIDANCE LEARNING; EXPERIMENTAL LAB STUDY; RATS; STRESS