دانلود مقاله ISI انگلیسی شماره 71721
عنوان فارسی مقاله

اثرات پاسخ کورتیزول ناشی از استرس بر رفتار رویکردی - اجتنابی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
71721 2005 13 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
The effects of stress-induced cortisol responses on approach–avoidance behavior
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Psychoneuroendocrinology, Volume 30, Issue 7, August 2005, Pages 665–677

کلمات کلیدی
کورتیزول؛ وظیفه رویکرد اجتناب؛ HPA محور ؛ تست استرس اجتماعی تریر ؛ حالت چهره؛ گرایشهای عملی
پیش نمایش مقاله
پیش نمایش مقاله اثرات پاسخ کورتیزول ناشی از استرس بر رفتار رویکردی - اجتنابی

چکیده انگلیسی

High glucocorticoid stress-responses are associated with prolonged freezing reactions and decreased active approach and avoidance behavior in animals. The present study was designed to investigate the effects of cortisol responses and trait avoidance on approach–avoidance behavior in humans. Twenty individuals were administered a computerized approach–avoidance (AA)-task before and after stress-induction (Trier Social Stress Test). The AA-task involved a reaction time (RT) task, in which participants made affect congruent and affect incongruent arm movements towards positive and threatening social stimuli. Affect congruent responses involved arm extension (avoidance) in response to angry faces and arm flexion (approach) in response to happy faces. Reversed responses were made in affect incongruent instruction conditions. As expected, participants with high cortisol responses showed significantly decreased RT congruency-effects in a context of social stress. Low trait avoidance was also associated with diminished congruency-effects during stress. However, the latter effect disappeared after controlling for the effects of cortisol. In sum, in agreement with animal research, these data suggest that high cortisol responses are associated with a decrease in active approach–avoidance behavior during stress. These findings may have important implications for the study of freezing and avoidance reactions in patients with anxiety disorders, such as social phobia and post-traumatic stress disorder.

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پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.