کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7278061 1473837 2018 30 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Contralateral delay activity does not reflect behavioral feature load in visual working memory
ترجمه فارسی عنوان
فعالیت های تاخیری غیرمستقیم، بار ویژگی های رفتاری در حافظه کاری بصری را نشان نمی دهد
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
چکیده انگلیسی
An ongoing debate in visual working memory research is concentrated on whether visual working memory capacity is determined solely by the number of objects to be memorized, or additionally by the number of relevant features contained within objects. Using a novel change detection task that contained multi-feature objects we examined the effect of both object number and feature number on visual working memory capacity, change detection sensitivity, and posterior slow wave event-related brain potential (ERP) activity. Behaviorally, working memory capacity and sensitivity were modulated as a function of both the number of objects and the number of features memorized per object. However, the Contralateral Delay Activity (CDA) was only sensitive to the number of objects, but not to the number of features. This suggests that while both objects and features contribute to limitations in visual working memory capacity, the CDA is an insufficient mechanism to account for feature level representations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biological Psychology - Volume 137, September 2018, Pages 107-115
نویسندگان
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