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Tytuł:
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The relationship between Intolerance of Uncertainty and conditioned fear acquisition: Evidence from a large sample.
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Autorzy:
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Mertens G; Department of Medical and Clinical Psychology, Tilburg University, Tilburg, the Netherlands; Department of Clinical Psychology, Utrecht University, Utrecht, the Netherlands. Electronic address: .
De Wolf N; Department of Experimental Clinical and Health Psychology, Ghent University, Ghent, Belgium.
Bouwman V; Department of Clinical Psychology, Utrecht University, Utrecht, the Netherlands.
Engelhard IM; Department of Clinical Psychology, Utrecht University, Utrecht, the Netherlands.
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Źródło:
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International journal of psychophysiology : official journal of the International Organization of Psychophysiology [Int J Psychophysiol] 2022 Jul; Vol. 177, pp. 67-75. Date of Electronic Publication: 2022 Apr 30.
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Typ publikacji:
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Journal Article; Research Support, Non-U.S. Gov't
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Język:
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English
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Imprint Name(s):
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Original Publication: Amsterdam ; New York : Elsevier, [c1983-
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MeSH Terms:
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Conditioning, Classical*/physiology
Fear*/physiology
Anxiety ; Extinction, Psychological/physiology ; Galvanic Skin Response ; Humans ; Reflex, Startle/physiology ; Uncertainty
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Contributed Indexing:
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Keywords: Fear conditioning; Individual differences; Intolerance of Uncertainty; Psychophysiology
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Entry Date(s):
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Date Created: 20220503 Date Completed: 20220621 Latest Revision: 20220831
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Update Code:
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20240104
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DOI:
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10.1016/j.ijpsycho.2022.04.011
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PMID:
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35504497
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Despite being considered a valid model for the etiology of anxiety disorders, the fear conditioning paradigm does not always show clear correlations with anxious personality traits that constitute risk factors for the development of anxiety disorders. This may in part due to error variance and the fact that fear conditioning studies are typically underpowered to investigate inter-individual differences. In the current study, we focus on the relationship between conditioned fear acquisition and Intolerance of Uncertainty (IU). In a re-analysis of a large previous study (N = 120), which was conducted using a healthy student sample and a partial reinforcement procedure (75%) with words as Conditioned Stimuli (CSs), the relationship between IU and several outcome measures (i.e., fear ratings, expectancy ratings, skin conductance responses, and startle responses) during fear acquisition was examined. We find that IU is positively related to fear ratings towards the CS+ (r = 0.29), even when controlling for the shared variance with trait anxiety. Furthermore, we find a subtle relationship between IU and startle responses to the CS- (r = -0.23), though this correlation did not survive correction for the shared variance with trait anxiety. Taken together, we replicate some of the correlations previously reported in the literature. However, we recommend that future studies employ even larger samples and more advanced statistical techniques such as structural equation modelling to investigate the correlations between fear acquisition indices and anxious traits in a fine-grained manner.
(Copyright © 2022 The Authors. Published by Elsevier B.V. All rights reserved.)
