دانلود مقاله ISI انگلیسی شماره 60714
ترجمه فارسی عنوان مقاله

شرطی سازی ترس انسان و انقراض: زمان بندی همه چیز است؟

عنوان انگلیسی
Human fear conditioning and extinction: Timing is everything…or is it?
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
60714 2013 10 صفحه PDF
منبع

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

Journal : Biological Psychology, Volume 92, Issue 1, January 2013, Pages 59–68

ترجمه کلمات کلیدی
شرطی سازی ترس؛ اضطراب؛ شرطی سازی زمانی؛ مدت زمان محرک
کلمات کلیدی انگلیسی
Fear conditioning; Anxiety; Psychophysiology; Temporal conditioning; Stimulus duration
پیش نمایش مقاله
پیش نمایش مقاله  شرطی سازی ترس انسان و انقراض: زمان بندی همه چیز است؟

چکیده انگلیسی

A differential fear conditioning paradigm was used with 107 healthy undergraduate participants to evaluate the effect of conditioned stimulus (CS) temporal properties on fear acquisition and extinction. Two minute duration CSs were used for Day 1 fear acquisition. Participants were randomized to receive either 1, 2, or 4 min CS durations during Day 2 extinction. Extinction re-test was examined on Day 3 using the original acquisition CS duration (2 min). Findings indicated that participants who were aware of the CS+/unconditioned stimulus (US) contingency (n = 52) develop a temporal expectation about when the unconditioned stimulus will be delivered. Although the shorter duration CS resulted in greater fear reduction during extinction, cessation of fear responding at re-test was the same for CS extinction durations ranging from half the CS acquisition duration to twice the CS acquisition duration. Thus, extinction performance did not predict extinction at re-test, which could have important implications for optimizing exposure therapy for anxiety disorders.