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Effect of post-learning sleep versus wakefulness on advantageous decision-making: A preliminary study

Authors

  • Takashi ABE,

    1. Japan Somnology Center, Neuropsychiatric Research Institute
    2. Department of Somnology, Tokyo Medical University, Tokyo
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  • Yuichi INOUE,

    1. Japan Somnology Center, Neuropsychiatric Research Institute
    2. Department of Somnology, Tokyo Medical University, Tokyo
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  • Yoko KOMADA,

    1. Japan Somnology Center, Neuropsychiatric Research Institute
    2. Department of Somnology, Tokyo Medical University, Tokyo
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  • Tadao HORI

    Corresponding author
    1. Department of Behavioral Sciences, Graduate School of Integrated Arts and Sciences, Hiroshima University
    2. Sleep Research Institute of Fukuyama Transporting Shibuya Longevity Health Foundation, Hiroshima, Japan
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Dr Tadao Hori, Sleep Research Institute of Fukuyama Transporting Shibuya Longevity Health Foundation, Myojincho 2-5-22, Fukuyama, Hiroshima 721-0961, Japan. Email: tdhori@hiroshima-u.ac.jp

Abstract

This study evaluates the effect of sleep on learning-based decision-making. Twenty-four healthy volunteers were allocated randomly to two groups: a sleep group and a wake group. A modified Iowa gambling task was administered before and after a 12-h period in which the sleep group slept about 8 h and the other group remained awake. The two groups' advantageous decision-making during the initial learning phase did not differ, but the advantageous choices of the sleep group improved more than that of the wake group after the 12-h period, suggesting that sleep may have facilitated and/or retained advantageous decision-making.

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