Cardiac defense in response to imminent threat in women with multiple trauma and severe PTSD.

Cardiac defense in response to imminent threat in women with multiple trauma and severe PTSD.
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心脏防御以应对多重创伤和严重创伤后应激障碍女性面临的迫在眉睫的威胁

DOI:
10.1111/psyp.12051
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Schauer M.
Schauer M.
中科院分区:
心理学3区
文献类型:
--
作者:
Schalinski I;Elbert T;Schauer M.

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创伤后应激障碍(PTSD)是长期暴露于创伤的结果,并伴随着对潜在威胁刺激的自主反应的改变。本研究调查了有和没有创伤后应激障碍的女性心脏防御的动态序列。使用持续时间为0.5 s和105 dB的声学噪声来引起心脏防御反应。刺激重复三次。在PTSD样本中,患有更严重PTSD的受访者在休息时表现出更高的心率,更高的基线和更大的反应。与健康受试者相比,PTSD组在第一次刺激后6 s至25 s心率升高。有证据表明PTSD组的习惯化和提示的差异影响心脏防御创伤的经验与高度接近的危险。
Posttraumatic stress disorder (PTSD) arises as a long‐term result of exposure to trauma and brings with it an altered autonomic response to potentially threatening stimuli. The present study investigates the dynamic sequence of cardiac defense in women with and without PTSD. An acoustic noise of 0.5‐s duration and 105 dB was used to elicit the cardiac defense reaction. The stimulus was repeated three times. Within the PTSD sample, respondents who suffered from more severe PTSD showed a higher heart rate at rest, a higher baseline, and a greater response. Compared to the healthy subjects, the PTSD group showed an elevated heart rate from 6 s to 25 s following the presentation of the first stimulus. There was evidence of habituation in the PTSD group and hints of differential effects on the cardiac defense of traumatic experiences with a high proximity of danger.
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