TY - JOUR
T1 - Do obsessive-compulsive symptoms and contamination-related stimuli affect inhibition capacity?
AU - De Putter, Laura M.S.
AU - Cromheeke, Sofie
AU - Anholt, Gideon E.
AU - Mueller, Sven C.
AU - Koster, Ernst H.W.
N1 - Funding Information: Funding for this study was provided by a Grant of the Special Research Fund (BOF) of Ghent University ( B/13811/01 ). BOF had no role in the study design, collection, analysis or interpretation of the data, writing the manuscript, or the decision to submit the paper for publication. Publisher Copyright: © 2017 Elsevier Inc.
PY - 2018/7/1
Y1 - 2018/7/1
N2 - The current study set out to investigate trait versus state views regarding inhibitory deficits in participants scoring high and low on contamination fear. Furthermore, it was investigated whether inhibitory deficits are specific for contamination-related stimuli. Participants were selected on high (n = 40) vs. low (n = 44) contamination fear and subsequently randomly assigned to receive either a neutral induction or an obsessive-compulsive (OCD) symptom induction. Participants performed a stop-signal task including contamination-specific, general negative, and neutral pictures before and after the induction. In contrast to state views, no change in inhibitory performance after the OCD symptom induction and no differential effect of contamination-related picture valence was found. Moreover, in contrast to the trait view, baseline inhibition capacity did not predict an increase in symptoms after an OCD symptom induction. Finally, contrary to expectations, participants high in contamination fear showed better inhibition than low contamination fear controls. Therefore, the results of the current study are inconclusive regarding the state-trait debate, but are clearly in contrast with the idea of trait inhibitory deficits in contamination fear.
AB - The current study set out to investigate trait versus state views regarding inhibitory deficits in participants scoring high and low on contamination fear. Furthermore, it was investigated whether inhibitory deficits are specific for contamination-related stimuli. Participants were selected on high (n = 40) vs. low (n = 44) contamination fear and subsequently randomly assigned to receive either a neutral induction or an obsessive-compulsive (OCD) symptom induction. Participants performed a stop-signal task including contamination-specific, general negative, and neutral pictures before and after the induction. In contrast to state views, no change in inhibitory performance after the OCD symptom induction and no differential effect of contamination-related picture valence was found. Moreover, in contrast to the trait view, baseline inhibition capacity did not predict an increase in symptoms after an OCD symptom induction. Finally, contrary to expectations, participants high in contamination fear showed better inhibition than low contamination fear controls. Therefore, the results of the current study are inconclusive regarding the state-trait debate, but are clearly in contrast with the idea of trait inhibitory deficits in contamination fear.
KW - Contamination fear
KW - Inhibition
KW - OCD
KW - Obsessive-compulsive disorder
KW - Stop-signal task
UR - http://www.scopus.com/inward/record.url?scp=85030770057&partnerID=8YFLogxK
U2 - https://doi.org/10.1016/j.jocrd.2017.09.003
DO - https://doi.org/10.1016/j.jocrd.2017.09.003
M3 - Article
SN - 2211-3649
VL - 18
SP - 73
EP - 80
JO - Journal of Obsessive-Compulsive and Related Disorders
JF - Journal of Obsessive-Compulsive and Related Disorders
ER -
