دانلود مقاله ISI انگلیسی شماره 74740
عنوان فارسی مقاله

حافظه کاری محرک های احساس پیکری: مطالعه fMRI

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
74740 2012 9 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Working memory of somatosensory stimuli: An fMRI study
منبع

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

Journal : International Journal of Psychophysiology, Volume 86, Issue 3, December 2012, Pages 220–228

کلمات کلیدی
حافظه کاری؛ لامسه؛ fMRI؛ احساس پیکری
پیش نمایش مقاله
پیش نمایش مقاله حافظه کاری محرک های احساس پیکری: مطالعه fMRI

چکیده انگلیسی

We performed functional magnetic resonance imaging (fMRI) during the execution of N-BACK tasks, with 2D geometrical shapes blindly pressed on the subjects' right hand palm. Three conditions with increasing memory load (0-BACK, 1-BACK, 2-BACK) were used. Results showed that primary somatosensory area (SI), secondary somatosensory area (SII) and bilateral Insula were active in all conditions, confirming their importance in coding somatosensory stimuli. Activation of fronto-parietal circuit in supplementary motor area (SMA), right superior parietal lobe (rSPL), bilateral middle frontal gyrus, left inferior frontal gyrus, and right superior frontal sulcus was significantly larger during 1-BACK and 2-BACK than 0-BACK. Left superior parietal lobe and right frontal eye field showed a higher activation during the 2-BACK than 0-BACK. Finally, SMA and rSPL were characterized by a statistically significant higher activation during 2-BACK than 1-BACK, revealing their sensitivity to the memory load. These results suggest that working memory of tactile geometrical shapes (no exploratory movement) involves a complex circuit of modal and supramodal fronto-parietal areas.

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