دانلود مقاله ISI انگلیسی شماره 158504
ترجمه فارسی عنوان مقاله

فعالیت عصبی، گروه ادراکی را در حافظه کاری نشان می دهد

عنوان انگلیسی
Neural activity reveals perceptual grouping in working memory
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی ترجمه فارسی
158504 2017 6 صفحه PDF سفارش دهید
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منبع

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

Journal : International Journal of Psychophysiology, Volume 113, March 2017, Pages 40-45

چکیده انگلیسی

There is extensive evidence that the contralateral delay activity (CDA), a scalp recorded event-related brain potential, provides a reliable index of the number of objects held in visual working memory. Here we present evidence that the CDA not only indexes visual object working memory, but also the number of locations held in spatial working memory. In addition, we demonstrate that the CDA can be predictably modulated by the type of encoding strategy employed. When individual locations were held in working memory, the pattern of CDA modulation mimicked previous findings for visual object working memory. Specifically, CDA amplitude increased monotonically until working memory capacity was reached. However, when participants were instructed to group individual locations to form a constellation, the CDA was prolonged and reached an asymptote at two locations. This result provides neural evidence for the formation of a unitary representation of multiple spatial locations.

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