دانلود مقاله ISI انگلیسی شماره 71128
عنوان فارسی مقاله

فعال شدن حافظه بصری برای هویت صورت وابسته به کار است؛ شواهدی از الکتروفیزیولوژی انسان

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
71128 2014 11 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
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عنوان انگلیسی
The activation of visual memory for facial identity is task-dependent: Evidence from human electrophysiology
منبع

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

Journal : Cortex, Volume 54, May 2014, Pages 124–134

کلمات کلیدی
تشخیص چهره؛ پردازش چهره - حافظه صورت بصری؛ پتانسیل مغز مربوط به رویداد -
پیش نمایش مقاله
پیش نمایش مقاله فعال شدن حافظه بصری برای هویت صورت وابسته به کار است؛ شواهدی از الکتروفیزیولوژی انسان

چکیده انگلیسی

The question whether the recognition of individual faces is mandatory or task-dependent is still controversial. We employed the N250r component of the event-related potential as a marker of the activation of representations of facial identity in visual memory, in order to find out whether identity-related information from faces is encoded and maintained even when facial identity is task-irrelevant. Pairs of faces appeared in rapid succession, and the N250r was measured in response to repetitions of the same individual face, as compared to presentations of two different faces. In Experiment 1, an N250r was present in an identity matching task where identity information was relevant, but not when participants had to detect infrequent targets (inverted faces), and facial identity was task-irrelevant. This was the case not only for unfamiliar faces, but also for famous faces, suggesting that even famous face recognition is not as automatic as is often assumed. In Experiment 2, an N250r was triggered by repetitions of non-famous faces in a task where participants had to match the view of each face pair, and facial identity had to be ignored. This shows that when facial features have to be maintained in visual memory for a subsequent comparison, identity-related information is retained as well, even when it is irrelevant. Our results suggest that individual face recognition is neither fully mandatory nor completely task-dependent. Facial identity is encoded and maintained in tasks that involve visual memory for individual faces, regardless of the to-be-remembered feature. In tasks without this memory component, irrelevant visual identity information can be completely ignored.

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