کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3046042 1185035 2009 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Activation of fast sleep spindles at the premotor cortex and parietal areas contributes to motor learning: A study using sLORETA
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی عصب شناسی
پیش نمایش صفحه اول مقاله
Activation of fast sleep spindles at the premotor cortex and parietal areas contributes to motor learning: A study using sLORETA
چکیده انگلیسی

ObjectiveThe present study examined whether slow and/or fast sleep spindles are related to visuomotor learning, by examining the densities of current sleep spindle activities.MethodsParticipants completed a visuomotor task before and after sleep on the learning night. This task was not performed on the non-learning night. Standard polysomnographic recordings were made. After the amplitudes of slow and fast spindles were calculated, sLORETA was used to localize the source of slow and fast spindles and to investigate the relationship between spindle activity and motor learning.ResultsFast spindle amplitude was significantly larger on the learning than on the non-learning nights, particularly at the left frontal area. sLORETA revealed that fast spindle activities in the left frontal and left parietal areas were enhanced when a new visuomotor skill was learned. There were no significant learning-dependent changes in slow spindle activity.ConclusionsFast spindle activity increases in cortical areas that are involved in learning a new visuomotor skill. The thalamocortical network that underlies the generation of fast spindles may contribute to the synaptic plasticity that occurs during sleep.SignificanceActivity of fast sleep spindles is a possible biomarker of memory deficits.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Clinical Neurophysiology - Volume 120, Issue 5, May 2009, Pages 878–886
نویسندگان
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