دانلود مقاله ISI انگلیسی شماره 74763
عنوان فارسی مقاله

پتانسیل احساس پیکری طولانی پیشرفته با زمان تاخیر در اختلال افسردگی اساسی

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
74763 2001 6 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Enhanced long-latency somatosensory potentials in major depressive disorder
منبع

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

Journal : Journal of Psychiatric Research, Volume 35, Issue 1, January–February 2001, Pages 43–48

کلمات کلیدی
عادت؛ افسردگی شدید؛ احساس پیکری بالقوه برانگیخته؛ تقویت احساس پیکری ؛ توجه
پیش نمایش مقاله
پیش نمایش مقاله پتانسیل احساس پیکری طولانی پیشرفته با زمان تاخیر در اختلال افسردگی اساسی

چکیده انگلیسی

Bodily misperceptions are a frequent symptom in major depressive disorder. A reduced ability to deflect attention from somatosensory stimuli may contribute to the generation of unpleasant bodily sensations and co-occur with altered habituation of the brain electric reactions to somatosensory stimuli. The aim of the present study was to explore whether attention-related components of somatosensory evoked potentials (SSEP) and the habituation of these components are altered in major depression. Fifteen patients with major depressive disorder were compared to an age- and gender-matched group of 15 healthy controls. A series of identical, intrusive but not painful electric stimuli were applied to the left index finger for 48 min. Averaged SSEP were computed from multichannel EEG recordings for consecutive recording blocks of the experiment, each block containing 162 stimuli. Based on these data the habituation process of late components of the SSEP was analysed in two latency intervals (50–150, 170–370 ms). Patients showed significantly enhanced reactions throughout the entire experiment. The persistence of enhanced SSEP components throughout the habituation process may be caused by a deficit in reducing the activity of attention-related brain processes concerned with intrusive, yet behaviourally irrelevant, continued stimulation in the state of major depression.

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