دانلود مقاله ISI انگلیسی شماره 77684
عنوان فارسی مقاله

انقراض در چند زمینه واقعیت مجازی بازگشت ترس در انسان را کاهش می دهد

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
77684 2014 8 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Extinction in multiple virtual reality contexts diminishes fear reinstatement in humans
منبع

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

Journal : Neurobiology of Learning and Memory, Volume 113, September 2014, Pages 157–164

کلمات کلیدی
انقراض؛ تهویه ترس؛ اضطراب؛ واقعیت مجازی؛ از جا پریدن بالقوه از ترس
پیش نمایش مقاله
پیش نمایش مقاله انقراض در چند زمینه واقعیت مجازی بازگشت ترس در انسان را کاهش می دهد

چکیده انگلیسی

Although conditioned fear can be effectively extinguished by unreinforced exposure to a threat cue, fear responses tend to return when the cue is encountered some time after extinction (spontaneous recovery), in a novel environment (renewal), or following presentation of an aversive stimulus (reinstatement). As extinction represents a context-dependent form of new learning, one possible strategy to circumvent the return of fear is to conduct extinction across several environments. Here, we tested the effectiveness of multiple context extinction in a two-day fear conditioning experiment using 3-D virtual reality technology to create immersive, ecologically-valid context changes. Fear-potentiated startle served as the dependent measure. All three experimental groups initially acquired fear in a single context. A multiple extinction group then underwent extinction in three contexts, while a second group underwent extinction in the acquisition context and a third group underwent extinction in a single different context. All groups returned 24 h later to test for return of fear in the extinction context (spontaneous recovery) and a novel context (renewal and reinstatement/test). Extinction in multiple contexts attenuated reinstatement of fear but did not reduce spontaneous recovery. Results from fear renewal were tendential. Our findings suggest that multi-context extinction can reduce fear relapse following an aversive event – an event that often induces return of fear in real-world settings – and provides empirical support for conducting exposure-based clinical treatments across a variety of environments.

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