Journal
NEUROBIOLOGY OF AGING
Volume 36, Issue 3, Pages 1409-1416Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.neurobiolaging.2014.12.014
Keywords
Sleep; Motor memory; Consolidation; Aging; Fine motor skill; Sequence learning
Categories
Funding
- Medical Research Council Research Studentship [492017]
- Wellcome Trust Senior Research Fellowship [090955/Z/09/Z]
- National Institute for Health Research (NIHR) Oxford Biomedical Research Centre based at Oxford University Hospitals NHS Trust, University of Oxford [REF] [A90305, A92181, A93182, A91102]
- Wellcome Trust [090955/Z/09/Z] Funding Source: Wellcome Trust
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It is often suggested that sleep-dependent consolidation of motor learning is impaired in older adults. The current study challenges this view and suggests that the degree of motor consolidation seen with sleep in older age groups depends on the kinematic demands of the task. We show that, when tested with a classic sequence learning task, requiring individuated finger movements, older adults did not show sleep-dependent consolidation. By contrast, when tested with an adapted sequence learning task, in which movements were performed with the whole hand, sleep-dependent motor improvement was observed in older adults. We suggest that age-related decline in fine motor dexterity may in part be responsible for the previously described deficit in sleep-dependent motor consolidation with aging. (C) 2015 The Authors. Published by Elsevier Inc.
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