دانلود مقاله ISI انگلیسی شماره 71533
عنوان فارسی مقاله

تثبیت حافظه اعلانی در طول شب برای اولین بار در یک آزمایشگاه خواب: نقش خواب REM و کورتیزول

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
71533 2013 10 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Declarative memory consolidation during the first night in a sleep lab: The role of REM sleep and cortisol
منبع

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

Journal : Psychoneuroendocrinology, Volume 38, Issue 7, July 2013, Pages 1102–1111

کلمات کلیدی
تثبیت حافظه اعلانی؛ اثر شب اول - خواب REM؛ کورتیزول
پیش نمایش مقاله
پیش نمایش مقاله تثبیت حافظه اعلانی در طول شب برای اولین بار در یک آزمایشگاه خواب: نقش خواب REM و کورتیزول

چکیده انگلیسی

While the consolidation of declarative memory is supported by slow wave sleep (SWS) in healthy subjects, it has been shown to be associated with rapid eye movement (REM) sleep in patients with insomnia. Sleep during a subject's first night in an unfamiliar environment is often disturbed, and this so-called first-night effect (FNE) has often been used as a model of transient insomnia. Additionally, sleeping for the first time in an unfamiliar environment can lead to increased cortisol secretion, and declarative memory consolidation likely depends on low cortisol levels, especially during the early part of the night. Accounting for intersubject variability in the FNE, we examined the relationship between sleep stages, cortisol secretion and declarative memory performance in 27 healthy young men. Declarative memory performance improved significantly after sleep. Whereas memory performance during the learning session and retrieval testing was strongly associated with cortisol secretion, the overnight gain was not. Post hoc analyses indicated that the overnight gain appears to be modulated by the extent of the FNE: a significant overnight improvement in memory performance was found only in subjects with a weak FNE (n = 12). In these subjects, no association was found between any sleep stage and the improvement observed in their memory performance. In subjects with a strong FNE (n = 12), however, the overnight change in memory performance was associated with the proportion of REM sleep and the total number of REMs. Disturbed sleep in an unfamiliar environment therefore appears to affect the memory consolidation process.

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