The impact of aversive context on early threat detection in trauma exposed individuals and associations with post-traumatic stress symptoms.
The impact of aversive context on early threat detection in trauma exposed individuals and associations with post-traumatic stress symptoms.
复制标题
厌恶环境对创伤暴露个体早期威胁检测的影响以及与创伤后应激症状的关联。
DOI：
10.1016/j.jadr.2021.100193
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发表时间：
2021
影响因子：
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通讯作者：
Shankman,StewartA
中科院分区：
文献类型：
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作者：
Shenberger,ElyseR;Funkhouser,CarterJ;Boley,Randy;Zalta,AlysonK;Shankman,StewartA
长时间的威胁性注意偏向（AB）与创伤后应激症状（PTSS）有关。方法干预寻求者（N= 50）或社区成员（N= 98）的两个创伤暴露样本完成了掩蔽点探测任务，以测量在安全与厌恶环境中（即，线性混合效应模型表明，一个令人厌恶的背景下增加了定向反应，在这两个样本，但是，PTSS没有缓和这些影响，在任何sample.LimitationsSample大小和异质性的创伤类型可能会影响效果的PTSS对AB.ConclusionThese结果突出的重要性，评估AB在不同的背景下，并检查人群的普遍性。鉴于先前的研究，结果还表明，PTSS中AB的增加可能只存在于后期注意力过程中，而不是早期威胁检测中，至少在行为方法中是这样。
IntroductionProlonged attentional bias to threat (AB) is associated with posttraumatic stress symptoms (PTSS). However, it is unclear whether this relationship extends to early threat detection (elicited by masked stimuli) and/or varies if AB is measured during an aversive context.MethodsTwo trauma-exposed samples of either intervention-seekers (N= 50) or community members (N= 98) completed a masked dot-probe task to measure early AB to angry faces in safe vs. aversive contexts (i.e., during threat of aversive noises).ResultsLinear mixed effects models showed that an aversive context increased the orienting responses in both samples; however, PTSS did not moderate these effects in either sample.LimitationsSample size and heterogeneity of trauma-type may have impacted effect of PTSS on AB.ConclusionThese results highlight the importance of assessing AB in varying contexts and examining generalizability across populations. Given prior research, the results also suggest that increased AB in PTSS may only be present for later attentional processes rather than early threat detection, at least with behavioral methods.