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Updated: Jun 29, 2026
07:01
Working Memory Training for Older Participants: A Control Group Training Regimen and Initial Intellectual Functioning Assessment
Published on: September 20, 2020
Sleep accelerates the improvement in working memory performance.
Kenichi Kuriyama1, Kazuo Mishima, Hiroyuki Suzuki
1Department of Psychophysiology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo 187-8553, Japan. kenichik@ncnp.go.jp
Summary
Post-training sleep significantly enhances working memory (WM) accuracy, demonstrating that sleep aids cognitive improvement. This study reveals sleep
Area of Science:
- Cognitive Neuroscience
- Sleep Research
- Human Performance
Background:
- Working memory (WM) is crucial for problem-solving and reasoning.
- WM performance was traditionally considered static.
- Recent evidence suggests repetitive training can improve WM.
Purpose of the Study:
- To investigate the effect of post-training sleep on working memory performance.
- To clarify whether sleep facilitates cognitive improvements from repetitive training.
Main Methods:
- 29 healthy young adults performed a spatial n-back task.
- Participants were randomly assigned to groups with or without intervening sleep.
- WM accuracy and response time were measured across different training schedules.
Main Results:
- Post-training sleep significantly improved n-back accuracy compared to wakefulness.
- Improvements in accuracy were independent of sleep timing, vigilance, or circadian factors.
- Response time was not affected by sleep or training schedules.
Conclusions:
- Post-training naturalistic sleep facilitates improvements in working memory capacity.
- Sleep plays a crucial role in consolidating and enhancing cognitive skills learned through training.
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