Stimulus intensity and recency contrasts and orienting response strength.
D000161:Acoustic Stimulation; D003214:Conditioning, Classical; D005260:Female; D005712:Galvanic Skin Response; D006185:Habituation, Psychophysiologic; D006801:Humans; D008297:Male; D009622:Noise; D009949:Orientation; D013997:Time Factors