دانلود مقاله ISI انگلیسی شماره 77315
عنوان فارسی مقاله

حافظه فضایی جامع در انسان با ضایعات ناحیه هیپوکامپ

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
77315 2005 25 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Allocentric spatial memory in humans with hippocampal lesions
منبع

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

Journal : Acta Psychologica, Volume 118, Issues 1–2, January–February 2005, Pages 123–147

کلمات کلیدی
واقعیت مجازی همه جانبه ؛ حافظه جامع؛ هیپوکامپ
پیش نمایش مقاله
پیش نمایش مقاله حافظه فضایی جامع در انسان با ضایعات ناحیه هیپوکامپ

چکیده انگلیسی

An immersive virtual reality (IVR) system was used to investigate allocentric spatial memory in a patient (PR) who had selective hippocampal damage, and also in patients who had undergone unilateral temporal lobectomies (17 right TL and 19 left TL), their performance compared against normal control groups. A human analogue of the Olton [Olton (1979). Hippocampus, space, and memory. Behavioural Brain Science, 2, 315] spatial maze was developed, consisting of a virtual room, a central virtual circular table and an array of radially arranged up-turned ‘shells.’ The participant had to search these shells in turn in order to find a blue ‘cube’ that would then ‘move’ to another location and so on, until all the shells had been target locations. Within-search errors could be made when the participants returned to a previously visited location during a search, and between-search errors when they revisited previously successful, but now incorrect locations. PR made significantly more between-search errors than his control group, but showed no increase in within-search errors. The right TL group showed a similar pattern of impairment, but the left TL group showed no impairment. This finding implicates the right hippocampal formation in spatial memory functioning in a scenario in which the visual environment was controlled so as to eliminate extraneous visual cues.

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