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Visual discrimination learning requires sleep after training

Abstract

Performance on a visual discrimination task showed maximal improvement 48–96 hours after initial training, even without intervening practice. When subjects were deprived of sleep for 30 hours after training and then tested after two full nights of recovery sleep, they showed no significant improvement, despite normal levels of alertness. Together with previous findings11 that subjects show no improvement when retested the same day as training, this demonstrates that sleep within 30 hours of training is absolutely required for improved performance.

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Figure 1: Reported time in bed for control and sleep-deprived subjects.
Figure 2: Time course of improvement over seven days.

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Acknowledgements

This work was supported by a grant from the MacArthur Foundation's Mind-Body Network and by National Institutes of Health grants MH-13,923 and MH-48,832.

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Correspondence to Robert Stickgold.

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Stickgold, R., James, L. & Hobson, J. Visual discrimination learning requires sleep after training. Nat Neurosci 3, 1237–1238 (2000). https://doi.org/10.1038/81756

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