MEDIA EXPOSURE AND SYMPATHETIC NERVOUS SYSTEM REACTIVITY PREDICT PTSD SYMPTOMS AFTER THE BOSTON MARATHON BOMBINGS
MEDIA EXPOSURE AND SYMPATHETIC NERVOUS SYSTEM REACTIVITY PREDICT PTSD SYMPTOMS AFTER THE BOSTON MARATHON BOMBINGS
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DOI：
10.1002/da.22282
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发表时间：
2014-07-01
影响因子：
7.4
通讯作者：
Sheridan, Margaret A.
中科院分区：
文献类型：
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作者：
Busso, Daniel S.;McLaughlin, Katie A.;Sheridan, Margaret A.
背景资料：恐怖主义袭击已被证明会加速儿童和青少年的创伤后应激障碍（PTSD），特别是在那些经常接触媒体报道此类事件的年轻人中。媒体曝光可能特别容易引发对压力有高度生理反应或先前有精神病理学或暴露于暴力的青少年的PTSD症状。我们研究了媒体暴露、攻击前精神病理学、自主神经系统（ANS）反应性和先前暴力暴露在预测2013年波士顿马拉松恐怖袭击后PTSD症状发作中的相互作用。研究方法：对78名青少年（平均年龄= 16.7岁，65%为女性）进行的社区样本完成了一项有关爆炸事件的调查，包括媒体对该事件的曝光和创伤后应激障碍症状。所有受访者参加了一项研究，评估精神病理学的攻击之前，和交感神经和副交感神经反应，以实验室为基础的应激源进行了评估，在一个子集（N = 44）的这个样本。我们研究了媒体曝光，ANS反应，攻击前的精神病理学，和先前的暴力暴露与爆炸事件相关的PTSD症状的发病的关联。结果：媒体暴露，攻击前的精神病理学，和先前的暴力暴露与创伤后应激障碍症状。此外，媒体曝光与交感神经反应相互作用，以预测PTSD症状的发作，这样的青少年与较低水平的交感神经反应发展PTSD症状，只有在高暴露于媒体报道的攻击。结论：我们提供了新的证据表明，暴露于不可预测的创伤性应激源之前的生理反应预测PTSD症状的发作。这些发现对识别大规模创伤后最容易患创伤后应激障碍的青少年有意义。(C)2014 Wiley Periodicals，Inc.
Background: Terrorist attacks have been shown to precipitate posttraumatic stress disorder (PTSD) symptomatology in children and adolescents, particularly among youths with high exposure to media coverage surrounding such events. Media exposure may be particularly likely to trigger PTSD symptoms in youths with high physiological reactivity to stress or with prior psychopathology or exposure to violence. We examined the interplay between media exposure, preattack psychopathology, autonomic nervous system (ANS) reactivity, and prior violence exposure in predicting PTSD symptom onset following the terrorist attack at the 2013 Boston Marathon. Methods: A community sample of 78 adolescents (mean age = 16.7 years, 65% female) completed a survey about the bombings, including media exposure to the event and PTSD symptoms. All respondents participated in a study assessing psychopathology prior to the attack, and sympathetic and parasympathetic reactivity to a laboratory-based stressor was assessed in a subset (N = 44) of this sample. We examined the associations of media exposure, ANS reactivity, preattack psychopathology, and prior violence exposure with onset of PTSD symptoms related to the bombings. Results: Media exposure, preattack psychopathology, and prior violence exposure were associated with PTSD symptoms. Moreover, media exposure interacted with sympathetic reactivity to predict PTSD symptom onset, such that adolescents with lower levels of sympathetic reactivity developed PTSD symptoms only following high exposure to media coverage of the attack. Conclusions: We provide novel evidence that physiological reactivity prior to exposure to an unpredictable traumatic stressor predicts PTSD symptom onset. These findings have implications for identifying youths most vulnerable to PTSD following wide-scale trauma. (C) 2014 Wiley Periodicals, Inc.