دانلود مقاله ISI انگلیسی شماره 72171
عنوان فارسی مقاله

بی دردی دارونما ناشی از یادگیری مشاهده ای اجتماعی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
72171 2009 7 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Placebo analgesia induced by social observational learning
منبع

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

Journal : PAIN®, Volume 144, Issues 1–2, July 2009, Pages 28–34

کلمات کلیدی
اثر دارونما؛ یادگیری مشاهده ای اجتماعی؛ تهویه؛ چشم داشت؛ پیشنهاد کلامی؛ یکدلی
پیش نمایش مقاله
پیش نمایش مقاله بی دردی دارونما ناشی از یادگیری مشاهده ای اجتماعی

چکیده انگلیسی

Although it has long been known that psychosocial factors play a crucial role in placebo responses, no attempt has been made to understand if social observation shapes the placebo analgesic effect. To address this question, we compared placebo analgesia induced through social observation (Group 1) with first-hand experience via a typical conditioning procedure (Group 2) and verbal suggestion alone (Group 3). In Group 1, subjects underwent painful stimuli and placebo treatment after they had observed a demonstrator (actually a simulator) showing analgesic effect when the painful stimuli were paired to a green light. In Group 2, subjects were conditioned according to previous studies, whereby a green light was associated to the surreptitious reduction of stimulus intensity, so as to make them believe that the treatment worked. In Group 3, subjects received painful stimuli and were verbally instructed to expect a benefit from a green light. Pain perception was assessed by means of a Numerical Rating Scale (NRS) ranging from 0 = no pain to 10 = maximum imaginable pain. Empathy trait and heart rate were also measured. We found that observing the beneficial effects in the demonstrator induced substantial placebo analgesic responses, which were positively correlated with empathy scores. Moreover, observational social learning produced placebo responses that were similar to those induced by directly experiencing the benefit through the conditioning procedure, whereas verbal suggestions alone produced significantly smaller effects. These findings show that placebo analgesia is finely tuned by social observation and suggest that different forms of learning take part in the placebo phenomenon.

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