caa a22 4500 388041005 CHVBK 20180307125021.0 cr unu---uuuuu 161130e199812 xx s 000 0 eng 10.1017/S0813483900004733 doi S0813483900004733 pii (NATIONALLICENCE)cambridge-10.1017/S0813483900004733 The Psychophysiology of Obsessive-Compulsive Disorder [Elektronische Daten] The aim of the study was to compare the psychophysiological pattern associated with obsessive-compulsive disorder (OCD) in clinical patients (n = 13) and checking behaviours in a nonclinical population (n = 13) to evaluate the validity of the anxiety reduction hypothesis. A second objective was to examine the psychophysiological pattern associated with prevention of ritualistic behaviour in the OCD group and of checking behaviour in the control group. A guided imagery methodology was utilised in order to examine the progression of the behaviours over time. Various psychophysiological measures were incorporated to account for the response to personalised imagery presented in four distinct stages. The stages included setting the scene, approach, incident, and consequence. Both the psychophysiological and the subjective response to the ritual/checking and response-prevention/no-checking scripts were higher than to the neutral script for both groups. A trend towards significantly higher heart rate response to the response-prevention/no-checking than to the ritual/checking script was also observed. Higher levels of depersonalisation and anxiety in the OCD group were observed following prevention of the ritual. The patterns of response indicated obsessive-compulsive behaviour may act to prevent the level of anxiety experienced by an individual from escalating, rather than to reduce it from an already elevated level. Copyright © The Author(s) 1998 Haines Janet University of Tasmania Josephs Stephen University of Tasmania Williams Christopher L. University of Tasmania Wells Jennifer H. University of Tasmania Behaviour Change Cambridge University Press 15/4(1998-12), 244-254 0813-4839 15:4<244 1998 15 BEC https://doi.org/10.1017/S0813483900004733 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0813483900004733 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Haines Janet University of Tasmania NATIONALLICENCE 700 1- Josephs Stephen University of Tasmania NATIONALLICENCE 700 1- Williams Christopher L. University of Tasmania NATIONALLICENCE 700 1- Wells Jennifer H. University of Tasmania NATIONALLICENCE 773 0- Behaviour Change Cambridge University Press 15/4(1998-12), 244-254 0813-4839 15:4<244 1998 15 BEC CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge