Mednick Sara, Nakayama Ken, Stickgold Robert
Psychology Department, Harvard University, 33 Kirkland Street, Cambridge, Massachusetts 02138, USA.
Nat Neurosci. 2003 Jul;6(7):697-8. doi: 10.1038/nn1078.
The learning of perceptual skills has been shown in some cases to depend on the plasticity of the visual cortex and to require post-training nocturnal sleep. We now report that sleep-dependent learning of a texture discrimination task can be accomplished in humans by brief (60- 90 min) naps containing both slow-wave sleep (SWS) and rapid eye movement (REM) sleep. This nap-dependent learning closely resembled that previously reported for an 8-h night of sleep in terms of magnitude, sleep-stage dependency and retinotopic specificity, and it was additive to subsequent sleep-dependent improvement, such that performance over 24 h showed as much learning as is normally seen after twice that length of time. Thus, from the perspective of behavioral improvement, a nap is as good as a night of sleep for learning on this perceptual task.
在某些情况下，感知技能的学习已被证明依赖于视觉皮层的可塑性，并需要训练后的夜间睡眠。我们现在报告，通过包含慢波睡眠（SWS）和快速眼动（REM）睡眠的短暂（60 - 90分钟）午睡，人类可以完成依赖睡眠的纹理辨别任务学习。这种依赖午睡的学习在幅度、睡眠阶段依赖性和视网膜拓扑特异性方面与先前报道的8小时夜间睡眠非常相似，并且它与随后依赖睡眠的改善相加，使得24小时内的表现显示出与通常两倍时长后所见一样多的学习效果。因此，从行为改善的角度来看，在这个感知任务的学习上，午睡与一夜睡眠一样有效。
