The effect of a daytime 2-hour nap on complex motor skill learning

Yuko Morita, Keiko Ogawa, Sunao Uchida*

*この研究の対応する著者

    研究成果: Article査読

    19 被引用数 (Scopus)

    抄録

    The present study examined whether three-ball cascade juggling was improved by sleep. To elucidate sleep functions related to motor memory consolidation, sleep EEG spectral analysis was performed for each recorded sleep stage. Sixteen female college students practiced juggling in the morning, and were tested immediately afterward. Eight of the subjects took a 2-hour nap after practice juggling (nap group), while another 8 stayed awake (control group). Juggling performance was then re-tested in the evening. Juggling performance improved after the 2-hour nap, while subjects in the control group did not show improvement. Slow oscillation, delta wave, and sigma wave EEG spectral power all increased significantly during non-REM sleep, especially during slow-wave sleep, after the post-motor learning nap (mNap) compared to an earlier baseline nap that preceded learning the task. Such EEG alterations have been suggested to relate to explicit declarative (hippocampus-dependent) memory consolidation; however, motor learning is considered to rely upon implicit procedural memory. We found that while sleep facilitated the consolidation of motor memory similar to that following real sport activities, the alterations in sleep EEG suggest that the initial motor learning of complex, highly coordinated 3-ball cascade juggling may involve substantial use of explicit memory.

    本文言語English
    ページ(範囲)302-309
    ページ数8
    ジャーナルSleep and Biological Rhythms
    10
    4
    DOI
    出版ステータスPublished - 2012 10

    ASJC Scopus subject areas

    • 生理学
    • 生理学(医学)
    • 神経学
    • 神経心理学および生理心理学

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