Eye-tracking exploration of inhibitory control in post-traumatic stress disorder: an emotional antisaccade paradigm

European Journal of Psychotraumatology

Monika Kornacka¹  Erika Wauthia²  Laurent Lefebvre²  Wivine Blekic²  Kendra Kandana Arachchige²  Mandy Rossignol² 

[1] SWPS University of Social Sciences and Humanities;University of Mons;

关键词: eye-tracking;    antisaccade task;    executive processes;    hypervigilance;    ptsd;    inhibition;    flexibility;   

DOI  :  10.1080/20008198.2021.1909281

来源: DOAJ

【 摘 要 】

Background: Cognitive–behavioural studies among individuals suffering from post-traumatic stress disorder (PTSD) have highlighted attentional biases towards threats as a key factor in the maintenance of the disorder. Anxiety-related studies have hypothesized that attentional biases were due to attentional control difficulties in inhibition and flexibility of threatening information. Objective: Because it remains unclear how this theory could be applied to PTSD, this study aims to evaluate the inhibitory control and flexibility abilities of negative and threatening information in this population, using eye-tracking technology. Method: Fifteen adults with a history of physical assault and a current diagnosis of PTSD, and 15 healthy control participants, completed an original mixed antisaccade task. Results: We found enhanced overt attentional allocation towards every item of emotional information among PTSD participants, such as indexed by the latencies of the first saccade in prosaccade trials, followed by disengagement difficulties, such as indexed by increased reaction time to identify the target. Conclusion: Our results could represent empirical evidence of the general enhancement of attentional vigilance in people with PTSD in comparison with healthy controls, as well as specific inhibitory deficits. The results are interpreted through a fear-generalization hypothesis.

【 授权许可】

Unknown