Contingent negative variation and phobic disorders.
The authors studied the modifications in contingent negative variation (CNV) in a group of rupophobic subjects. A slide-projected phobogenic or a neutral stimulus was administered 5 s prior to the warning stimulus (S1). A marked reduction in CNV amplitude and the appearance of post-imperative negative variation were observed when the phobogenic stimulus was applied. No significant variations were noted after administration of a neutral stimulus. The results are discussed on the basis of psychological and neurophysiological findings concerning the relationship between attention, arousal and CNV.
D000328:Adult; D003265:Contingent Negative Variation; D004594:Electrophysiology; D005260:Female; D006801:Humans; D008297:Male; D010698:Phobic Disorders / Q000503:physiopathology*; D011930:Reaction Time / Q000502:physiology; D013315:Stress, Psychological / Q000503:physiopathology