دانلود مقاله ISI انگلیسی شماره 39778
عنوان فارسی مقاله

اثر عصبی پردازش چهره عاطفی خودآگاه و ناخودآگاه در نوزاد انسانها

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
39778 2015 11 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Neural signatures of conscious and unconscious emotional face processing in human infants
منبع

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

Journal : Cortex, Volume 64, March 2015, Pages 260–270

کلمات کلیدی
آگاهی - EEG - درک احساسات - نوزاد انسان - پردازش پنهان
پیش نمایش مقاله
پیش نمایش مقاله اثر عصبی پردازش چهره عاطفی خودآگاه و ناخودآگاه در نوزاد انسانها

چکیده انگلیسی

Human adults can process emotional information both with and without conscious awareness, and it has been suggested that the two processes rely on partly distinct brain mechanisms. However, the developmental origins of these brain processes are unknown. In the present event-related brain potential (ERP) study, we examined the brain responses of 7-month-old infants in response to subliminally (50 and 100 msec) and supraliminally (500 msec) presented happy and fearful facial expressions. Our results revealed that infants' brain responses (Pb and Nc) over central electrodes distinguished between emotions irrespective of stimulus duration, whereas the discrimination between emotions at occipital electrodes (N290 and P400) only occurred when faces were presented supraliminally (above threshold). This suggests that early in development the human brain not only discriminates between happy and fearful facial expressions irrespective of conscious perception, but also that, similar to adults, supraliminal and subliminal emotion processing relies on distinct neural processes. Our data further suggest that the processing of emotional facial expressions differs across infants depending on their behaviorally shown perceptual sensitivity. The current ERP findings suggest that distinct brain processes underpinning conscious and unconscious emotion perception emerge early in ontogeny and can therefore be seen as a key feature of human social functioning.

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