Sleep forms memory for finger skills
- 22 August 2002
- journal article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences of the United States of America
- Vol. 99 (18), 11987-11991
- https://doi.org/10.1073/pnas.182178199
Abstract
Practicing a motor skill triggers a process of memory consolidation that continues for hours after practice has ended, and becomes manifest in an improved skill at later testing. We used a sequential motor task (finger-to-thumb opposition task) to show that, in humans, the formation of motor skill memories essentially benefits from sleep. Independent of whether placed during daytime or nighttime, sleep after practice enhanced speed of sequence performance on average by 33.5% and reduced error rate by 30.1% as compared with corresponding intervals of wakefulness. The effect of sleep after learning proved to be stable when retesting was postponed for another night, to exclude effects of sleep loss and to assure that all subjects had sufficient sleep before retrieval testing. Also, the consolidating effect of sleep was specific for the motor sequence learned. It did not generalize to a similar sequence containing identical movement segments in a different order. Retention periods of wakefulness improved performance only moderately and only if placed during daytime. The observations demonstrate a critical role of sleep for storing and optimizing motor skills.Keywords
This publication has 41 references indexed in Scilit:
- The Role of Sleep in Learning and MemoryScience, 2001
- Proposed supplements and amendments to ‘A Manual of Standardized Terminology, Techniques and Scoring System for Sleep Stages of Human Subjects’, the Rechtschaffen & Kales (1968) standardPsychiatry and Clinical Neurosciences, 2001
- Effects of Early and Late Nocturnal Sleep on Declarative and Procedural MemoryJournal of Cognitive Neuroscience, 1997
- An Internal Model for Sensorimotor IntegrationScience, 1995
- Functional MRI evidence for adult motor cortex plasticity during motor skill learningNature, 1995
- Impaired motor memory for a pursuit rotor task following Stage 2 sleep loss in college studentsJournal of Sleep Research, 1994
- Dependence on REM Sleep of Overnight Improvement of a Perceptual SkillScience, 1994
- Synaptic relationships involving local axon collaterals of pyramidal neurons in the cat motor cortexJournal of Comparative Neurology, 1993
- Sleep and dreaming: induction and mediation of REM sleep by cholinergic mechanismsCurrent Opinion in Neurobiology, 1992
- Long-Term Potentiation in the Motor CortexScience, 1989