Jhang YT, Liang CW. The effect of uncertainty on attentional bias in subclinical worriers: Evidence from reaction time and eye-tracking.
J Behav Ther Exp Psychiatry 2023;
81:101842. [PMID:
36827945 DOI:
10.1016/j.jbtep.2023.101842]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 01/28/2023] [Accepted: 02/14/2023] [Indexed: 02/18/2023]
Abstract
BACKGROUND AND OBJECTIVES
High-worry individuals have been assumed to show attentional bias towards threat, particularly under high uncertainty. This study experimentally investigated the effect of uncertainty on attentional bias in subclinical worriers.
METHODS
A visual dot-probe task combined with eye-tracking was used to assess participants' attentional bias towards blurred and unfiltered stimuli. Fifty high-worry and 47 low-worry participants were randomly assigned to either the high- or low-uncertainty threat condition. Aversive noise bursts were delivered either unpredictably (the high-uncertainty threat condition) or predictably (the low-uncertainty threat condition) during the visual dot-probe task.
RESULTS
In the low-uncertainty threat condition, high-worry participants exhibited enhanced attentional engagement towards blurred pictures compared to low-worry participants. They also had shorter initial fixation latencies on blurred pictures than on unfiltered pictures. In the high-uncertainty threat condition, high-worry participants demonstrated more difficulty in disengaging from threatening pictures compared to low-worry participants.
LIMITATION
First, this study used a nonclinical sample. Second, the power was limited with regard to the analysis of eye-movement data. Third, anxiety and worry induced by noise bursts were measured using subjective rating scales only. Fourth, some picture characteristics, such as luminosity and complexity, were not controlled. Finally, uncertainty related to delivery of noise bursts and pictures were both manipulated dichotomously.
CONCLUSION
This study highlights the importance of uncertainty in the maintenance of attentional bias towards threat-related pictures in high-worry individuals.
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