Electrophysiological traces of visuomotor learning and their renormalization after sleep.
Electrophysiological traces of visuomotor learning and their renormalization after sleep.
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DOI：
10.1016/j.clinph.2011.05.001
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发表时间：
2011-12
期刊：
影响因子：
--
通讯作者：
Tononi G
中科院分区：
文献类型：
--
作者：
Landsness EC;Ferrarelli F;Sarasso S;Goldstein MR;Riedner BA;Cirelli C;Perfetti B;Moisello C;Ghilardi MF;Tononi G
使运动适应视觉旋转涉及到右侧后顶叶区域的激活。进一步的表现改善需要在随后的睡眠中增加相同区域的慢波活动。在这里，我们确定了在清醒脑电图中是否存在学习后的痕迹，以及这种痕迹是否受到睡眠慢波的影响。在两个独立的会话中，我们记录了17名健康受试者在睡眠前和睡眠后进行视觉运动旋转任务前后的高密度脑电图。睡眠时也记录高密度脑电图。一组旨在抑制睡眠慢波，而另一组作为对照。在学习之后，我们在睁眼醒脑中发现了局部，顶叶α功率下降的痕迹。在控制夜之后，这一痕迹恢复到基线水平，但在慢波剥夺后却没有这样做。夜间轨迹变化仅在对照组中与低频（< 8Hz） NREM睡眠活动消散相关。视觉运动学习在脑电图中留下了痕迹，似乎被睡眠慢波重新规范化了。这些发现将视觉运动学习与清醒脑电图和睡眠稳态的区域变化联系起来。
Adapting movements to a visual rotation involves the activation of right posterior parietal areas. Further performance improvement requires an increase of slow wave activity in subsequent sleep in the same areas. Here we ascertained whether a post-learning trace is present in wake EEG and whether such a trace is influenced by sleep slow waves. In two separate sessions, we recorded high-density EEG in 17 healthy subjects before and after a visuomotor rotation task, which was performed both before and after sleep. High-density EEG was recorded also during sleep. One session aimed to suppressed sleep slow waves, while the other session served as a control. After learning, we found a trace in the eyes-open wake EEG as a local, parietal decrease in alpha power. After the control night, this trace returned to baseline levels, but it failed to do so after slow wave deprivation. The overnight change of the trace correlated with the dissipation of low frequency (< 8Hz) NREM sleep activity only in the control session. Visuomotor learning leaves a trace in the wake EEG alpha power that appears to be renormalized by sleep slow waves. These findings link visuomotor learning to regional changes in wake EEG and sleep homeostasis.
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影响因子：
13.9
作者：
Feldman DE
通讯作者：
Feldman DE
影响因子：
5.7
作者：
Hanslmayr, Simon;Aslan, Alp;Baeuml, Karl-Heinz
通讯作者：
Baeuml, Karl-Heinz
影响因子：
5.7
作者：
Laufs, H;Kleinschmidt, A;Krakow, K
通讯作者：
Krakow, K
影响因子：
4.7
作者：
Hulse, Brad K.;Landsness, Eric C.;Tononi, Giulio
通讯作者：
Tononi, Giulio
DOI：
10.1073/pnas.0705454104
发表时间：
2007-11-20
影响因子：
11.1
作者：
Gais, Steffen;Albouy, Genevieve;Peigneux, Philippe
通讯作者：
Peigneux, Philippe