دانلود مقاله ISI انگلیسی شماره 71229
عنوان فارسی مقاله

قشر آهیانه ای خلفی در حافظه شناخت: مطالعه عصب روان شناختی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
71229 2008 11 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
The posterior parietal cortex in recognition memory: A neuropsychological study
منبع

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

Journal : Neuropsychologia, Volume 46, Issue 7, June 2008, Pages 1756–1766

کلمات کلیدی
حافظه؛ جداری؛ سکته مغزی؛ شناخت ؛ مطالعه ضایعه - CVA؛ آشنائی
پیش نمایش مقاله
پیش نمایش مقاله قشر آهیانه ای خلفی در حافظه شناخت: مطالعه عصب روان شناختی

چکیده انگلیسی

Several recent functional neuroimaging studies have reported robust bilateral activation (L > R) in lateral posterior parietal cortex and precuneus during recognition memory retrieval tasks. It has not yet been determined what cognitive processes are represented by those activations. In order to examine whether parietal lobe-based processes are necessary for basic episodic recognition abilities, we tested a group of 17 first-incident CVA patients whose cortical damage included (but was not limited to) extensive unilateral posterior parietal lesions. These patients performed a series of tasks that yielded parietal activations in previous fMRI studies: yes/no recognition judgments on visual words and on colored object pictures and identifiable environmental sounds. We found that patients with left hemisphere lesions were not impaired compared to controls in any of the tasks. Patients with right hemisphere lesions were not significantly impaired in memory for visual words, but were impaired in recognition of object pictures and sounds. Two lesion–behavior analyses – area-based correlations and voxel-based lesion symptom mapping (VLSM) – indicate that these impairments resulted from extra-parietal damage, specifically to frontal and lateral temporal areas. These findings suggest that extensive parietal damage does not impair recognition performance. We suggest that parietal activations recorded during recognition memory tasks might reflect peri-retrieval processes, such as the storage of retrieved memoranda in a working memory buffer for further cognitive processing.

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