دانلود مقاله ISI انگلیسی شماره 70784
عنوان فارسی مقاله

پتانسیل های مرتبط با رویداد در طول یک کار استروپ هیجانی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
70784 2007 11 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Event-related potentials during an emotional Stroop task
منبع

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

Journal : International Journal of Psychophysiology, Volume 63, Issue 3, March 2007, Pages 221–231

کلمات کلیدی
استروپ هیجانی؛ رویداد مربوط بالقوه؛ کلمات تهدید؛ توجه؛ هیجانی؛ تعصب توجه
پیش نمایش مقاله
پیش نمایش مقاله پتانسیل های مرتبط با رویداد در طول یک کار استروپ هیجانی

چکیده انگلیسی

Emotional Stroop tasks have gained wide interest in scientific literature in the last two decades. Although no direct measure of attention is employed, these studies infer the presence of preferential processing of threatening information based on reaction time (RT) impairment in a competing task. Because event-related potential (ERP) measures are sensitive to both the extent (amplitude) and speed (latency) of cerebral processing, they are valuable tools with which to examine more directly the claim that threatening stimuli are associated with enhanced attention. Twenty-two students rated a pool of words to identify those that were personally disturbing. Two word types (threat and neutral) were then compared in two tasks (color relevant, in which the color ink of words was identified, and word relevant in which words were classified as threatening or not). No emotional Stroop effect was observed in terms of longer RTs to identify the colors of threat words. ERP results provided valuable information about threat processing which was not observed with behavioral measures. Threat content was associated with larger P2 amplitude in the right than left hemisphere, and larger P3 amplitude, across tasks. The results indicate strong evidence for enhanced processing of threat-related stimuli in healthy individuals. It is concluded that ERPs are a sensitive measure of processes underlying emotional Stroop performance, which can be used to elucidate attentional biases in healthy and clinical populations.

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