دانلود مقاله ISI انگلیسی شماره 77694
عنوان فارسی مقاله

استفاده از شنوایی مربوط به رویداد پتانسیل EEG برای ارزیابی حضور در واقعیت مجازی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
77694 2012 11 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Using auditory event-related EEG potentials to assess presence in virtual reality
منبع

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

Journal : International Journal of Human-Computer Studies, Volume 70, Issue 9, September 2012, Pages 577–587

کلمات کلیدی
پتانسیل های مرتبط با رویداد - حضور مکانی؛ اندازه گیری حضور؛ واقعیت مجازی؛ تخصیص توجه؛ محرک های VR-بی ربط
پیش نمایش مقاله
پیش نمایش مقاله استفاده از شنوایی مربوط به رویداد پتانسیل EEG برای ارزیابی حضور در واقعیت مجازی

چکیده انگلیسی

The feeling of presence in a virtual reality (VR) is a concept without a standardized objective measurement. In the present study, we used event-related brain potentials (ERP) of the electroencephalogram (EEG) elicited by tones, which are not related to VR, as an objective indicator for the presence experience within a virtual environment. Forty participants navigated through a virtual city and rated their sensation of being in the VR (experience of presence), while hearing frequent standard tones and infrequent deviant tones, which were irrelevant for the VR task. Different ERP components elicited by the tones were compared between participants experiencing a high level of presence and participants with a low feeling of presence in the virtual city. Early ERP components, which are more linked to automatic stimulus processing, showed no correlation with presence experience. In contrast, an increased presence experience was associated with decreased late negative slow wave amplitudes, which are associated with central stimulus processing and allocation of attentional resources. This result supports the assumption that increased presence is associated with a strong allocation of attentional resources to the VR, which leads to a decrease of attentional resources available for processing VR-irrelevant stimuli. Hence, ERP components elicited by the tones are reduced. Particularly, frontal negative slow waves turned out to be accurate predictors for presence experience. Summarizing, late ERPs elicited by VR-irrelevant tones differ as a function of presence experience in VR and provide a valuable method for measuring presence in VR.

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