A Preliminary Study Investigating Time Perception in Adolescents With Posttraumatic Stress Disorder and Major Depressive Disorder
A Preliminary Study Investigating Time Perception in Adolescents With Posttraumatic Stress Disorder and Major Depressive Disorder
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DOI：
10.1037/tra0000471
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发表时间：
2019-09-01
影响因子：
6.3
通讯作者：
Jobson, Laura
中科院分区：
文献类型：
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作者：
Ahmadi, Maryam;Moradi, Ali Reza;Jobson, Laura
目的：初步探讨创伤后应激障碍(PTSD)、重度抑郁障碍(MDD)青少年和健康对照青少年的时间知觉。方法：伊朗青少年创伤后应激障碍和MDD患者各15例，均为健康青少年。非创伤对照组参与者(n=15)完成了3项时间知觉测量：口头时间估计任务、生产任务和复制任务。结果：创伤后应激障碍组的总体时间知觉准确率显著低于对照组(d=1.38)。组间差异取决于时间知觉任务的类型；两组在时间再现任务上没有显著差异，但在言语时间估计任务和生产任务上存在显著差异。在言语估计任务上，PTSD组的时间估计准确率(即低估)显著低于MDD组(d=1.10)，而控制组的时间估计准确率处于中等水平。PTSD组和MDD组在生产任务上没有显著差异，但两个临床组的表现都明显低于对照组(DS>；.76)。最后，工作记忆在群体与时间知觉准确性之间起中介作用(95%可信区间[2.10，38.69])。结论：这些发现强调了进一步研究创伤后应激障碍患者的时间知觉的必要性。
Objective: The aim of the current study was to conduct a preliminary investigation into time perception in adolescents with posttraumatic stress disorder (PTSD), major depressive disorder (MDD), and healthy controls. Method: Iranian adolescents with PTSD (n = 15) or MDD (n = 15) and healthy. non-trauma-exposed control participants (n = 15) completed 3 measures of time perception: a verbal time estimation task, a production task, and a reproduction task. Results: The PTSD group was found to have significantly poorer overall time perception accuracy compared to the control group (d = 1.38). Group differences were dependent on the type of time perception task; the groups did not differ significantly on the time reproduction task but did differ significantly on the verbal time estimation task and production task. The PTSD group had significantly poorer time estimate accuracy (i.e., underestimates) on the verbal estimation task than did the MDD group (d = 1.10), and the control group performed at the intermediate level. The PTSD and MDD groups did not differ significantly on the production task, but both clinical groups had significantly poorer performance than did the control group (ds > .76). Finally, working memory mediated the relationship between group and time perception accuracy (95% confidence interval [2.10, 38.69]). Conclusions: These findings highlight the need for further research examining time perception in PTSD.