دانلود مقاله ISI انگلیسی شماره 77653
عنوان فارسی مقاله

خنکی هر دو زمینه به و محافظت در برابر دردآمیزی از خطای حسی کوره حرارتی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
77653 2014 7 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Coolness both underlies and protects against the painfulness of the thermal grill illusion
منبع

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

Journal : PAIN®, Volume 155, Issue 4, April 2014, Pages 801–807

کلمات کلیدی
خطای حسی کوره حرارتی؛ انطباق؛ آلوداینیا؛ علم روابط میان روان وتن
پیش نمایش مقاله
پیش نمایش مقاله خنکی هر دو زمینه به و محافظت در برابر دردآمیزی از خطای حسی کوره حرارتی

چکیده انگلیسی

We investigated the contributions of warm and cool signals in generating the thermal grill illusion (TGI), a phenomenon in which interlaced warm and cool bars generate an experience of burning, and under some conditions painful, heat. Each subject underwent 3 runs, 2 of which tested the effects of preadapting subjects to the grill’s warm or cool bars (while the interlaced bars were thermally neutral) on the subsequent intensity of the illusion. In a control run, all bars were neutral during the adaptation phase. Thermal visual analogue scale ratings during the warm and cool adaptation periods revealed significant and equivalent adaptation to the 2 temperatures. Adaptation to the grill’s cool bars significantly reduced pain and perceived thermal intensity of the TGI, compared to the control condition, while adaptation to the grill’s warm bars had little effect. These results suggest that the cool stimulus triggers the pain signals that produce the illusion. The inability of warm adaptation to attenuate the TGI is at odds with theories suggesting that the illusion depends upon a simple addition of warm and cool signals. While the grill’s cool bars are necessary for the TGI’s painfulness, we also observed that the more often a participant reported feeling coolness or coldness, the less pain he or she experienced from the TGI. These results are consistent with research showing that cool temperatures generate activity in both thermoreceptive-specific, pain-inhibitory neurons and nociceptive dorsal horn neurons.

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