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Eye-tracking exploration of inhibitory control in post-traumatic stress disorder: an emotional antisaccade paradigm
European Journal of Psychotraumatology ( IF 5.783 ) Pub Date : 2021-04-26 , DOI: 10.1080/20008198.2021.1909281
Wivine Blekic 1, 2 , Erika Wauthia 1 , Monika Kornacka 3 , Kendra Kandana Arachchige 1 , Laurent Lefebvre 1 , Mandy Rossignol 1
Affiliation  

ABSTRACT

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.



中文翻译:

创伤后应激障碍抑制控制的眼动追踪探索:一种情绪反跳范式

摘要

背景:对患有创伤后应激障碍 (PTSD) 的个体进行的认知行为研究强调,对威胁的注意力偏差是维持该障碍的一个关键因素。与焦虑相关的研究假设注意力偏差是由于在抑制和威胁信息的灵活性方面的注意力控制困难。

目的: 由于尚不清楚该理论如何应用于 PTSD,本研究旨在利用眼动追踪技术评估该人群对负面和威胁信息的抑制控制和灵活性能力。

方法:15 名有身体攻击史且目前诊断为 PTSD 的成年人,以及 15 名健康对照参与者,完成了一项原始的混合反眼跳任务。

结果:我们发现 PTSD 参与者对每一项情绪信息的明显注意力分配有所增强,例如以 prosaccade 试验中第一次扫视的潜伏期为索引,然后是脱离困难,例如以增加的反应时间为索引以识别目标。

结论:我们的结果可以代表与健康对照组相比,PTSD 患者注意力警觉性普遍增强的经验证据,以及特定的抑制缺陷。通过恐惧泛化假设解释结果。

更新日期:2021-04-26
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