Attentional bias in posttraumatic stress disorder
Attentional bias in posttraumatic stress disorder
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DOI：
10.1002/jts.2490100409
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发表时间：
1997-10-01
影响因子：
3.3
通讯作者：
Harvey, AG
中科院分区：
文献类型：
--
作者：
Bryant, RA;Harvey, AG
本研究采用改良的点探测范式，探讨了创伤后应激障碍（PTSD）受试者对威胁材料的优先编码。该范式通过测量对邻近或远离威胁词的中性目标词命名的反应潜伏期来索引注意偏差。机动车事故幸存者与创伤后应激障碍（n = 15），亚临床创伤后应激障碍（n = 15），低焦虑（n = 15）被要求命名的目标词，无论是附近或远离强威胁，轻度威胁，积极的，和中性的话。PTSD受试者在接近轻度威胁词时更快地说出目标。结果表明，PTSD受试者的注意力被吸引到轻微的威胁刺激，并在PTSD网络模型的背景下进行了讨论。
This study investigated preferential encoding of threat material in subjects with posttraumatic stress disorder (PTSD) with a modified dot-probe paradigm. This paradigm indexes attentional bias by measuring response latency to name neutral target words that are presented adjacent to or distant from threat words. Motor vehicle accident survivors with PTSD (n = 15), subclinical PTSD (n = 15), and low anxiety (n = 15) were required to name target words that were presented either adjacent to or distant from strong threat, mild threat, positive, and neutral words. PTSD subjects named targets faster when they were in close proximity to mild threat words. Results suggested that PTSD subjects' attention was drawn to the mild threat stimuli and are discussed in the context of network models of PTSD.