期刊
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷 102, 期 50, 页码 18237-18241出版社
NATL ACAD SCIENCES
DOI: 10.1073/pnas.0506072102
关键词
movement control; procedural learning; consolidation; sleep
资金
- NCRR NIH HHS [K24 RR018875, RR018875] Funding Source: Medline
- NHLBI NIH HHS [K30 HL004095, K30 HL04095] Funding Source: Medline
- NIMH NIH HHS [MH-65434, K23 MH065434] Funding Source: Medline
Acquiring a new skill requires learning multiple aspects of a task simultaneously. For example, learning a piano sonata requires learning the musical notes and being able to implement this goal by learning the appropriate sequence of finger movements. After practice, skill continues to develop off-line during a period of consolidation. Here we show that different aspects of a procedural memory are processed separately during consolidation: Only the movement sequence is enhanced over the day; whereas only the goal is enhanced over a night of sleep. This double dissociation suggests that distinct systems, enhancing different aspects of a procedural memory, support improvements during consolidation. Consolidation is not a single process; instead, there are multiple routes to off-line learning, and the engagement of these distinct mechanisms is determined by when consolidation takes place.
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