دانلود مقاله ISI انگلیسی شماره 70197
عنوان فارسی مقاله

یادگیری عاطفی با افزایش فعالیت و اتصال عملکردی در قشر بینایی اولیه

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
70197 2009 8 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Affective learning enhances activity and functional connectivity in early visual cortex
منبع

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

Journal : Neuropsychologia, Volume 47, Issue 12, October 2009, Pages 2480–2487

کلمات کلیدی
قشر بینایی اولیه؛ تهویه؛ چهره ها؛ چشم انداز؛ هیجانی؛ fMRI
پیش نمایش مقاله
پیش نمایش مقاله یادگیری عاطفی با افزایش فعالیت و اتصال عملکردی در قشر بینایی اولیه

چکیده انگلیسی

This study examined the impact of task-irrelevant affective information on early visual processing regions V1–V4. Fearful and neutral faces presented with rings of different colors were used as stimuli. During the conditioning phase, fearful faces presented with a certain ring color (e.g., black) were paired with mild electrical stimulation. Neutral faces shown with rings of that color, as well as fearful or neutral faces shown with another ring color (e.g., white), were never paired with shock. Our findings revealed that fearful faces evoked enhanced blood oxygen level dependent (BOLD) responses in V1 and V4 compared to neutral faces. Faces embedded in a color ring that was paired with shock (e.g., black) evoked greater BOLD responses in V1–V4 compared to a ring color that was never paired with shock (e.g., white). Finally, BOLD responses in early visual cortex were tightly interrelated (i.e., correlated) during an affectively potent context (i.e., ring color) but not during a neutral one, suggesting that increased functional integration was present with affective learning. Taken together, the results suggest that task-irrelevant affective information not only influences evoked responses in early, retinotopically organized visual cortex, but also determines the pattern of responses across early visual cortex.

خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.