Does working memory improvement benefit from sleep in older adults?
Working Memory (WM), is an important factor influencing many higher-order cognitive functions that decline with age. Repetitive training appears to increase WM, yet the mechanisms underlying this improvement are not understood. Sleep has been shown to benefit long-term memory formation and may also...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-01-01
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| Series: | Neurobiology of Sleep and Circadian Rhythms |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2451994418300282 |
| _version_ | 1818082580002504704 |
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| author | Negin Sattari Lauren N. Whitehurst Maryam Ahmadi Sara C. Mednick |
| author_facet | Negin Sattari Lauren N. Whitehurst Maryam Ahmadi Sara C. Mednick |
| author_sort | Negin Sattari |
| collection | DOAJ |
| description | Working Memory (WM), is an important factor influencing many higher-order cognitive functions that decline with age. Repetitive training appears to increase WM, yet the mechanisms underlying this improvement are not understood. Sleep has been shown to benefit long-term memory formation and may also play a role in WM enhancement in young adults. However, considering age-related decline in sleep, it is uninvestigated whether sleep will facilitate WM in older adults. In the present work, we investigated the impact of a nap, quiet wakefulness (QW) and active wakefulness (AW) on within-day training on the Operation Span (OSPAN) task in older adults. Improvement in WM was found following a nap and QW, but not active wake. Furthermore, better WM was associated with shared electrophysiological features, including slow oscillation (SO, 0.5–1 Hz) power in both the nap and QW, and greater coupling between SO and sigma (12–15 Hz) in the nap. In summary, our data suggest that WM improvement in older adults occurs opportunistically during offline periods that afford enhancement in slow oscillation power, and that further benefits may come with cross-frequency coupling of neural oscillations during sleep. Keywords: Executive function, Sigma/SO coupling, Napping, Slow oscillation, Quiet wake, Active wake |
| first_indexed | 2024-12-10T19:24:21Z |
| format | Article |
| id | doaj.art-722dc38f99194cb79b6c1ce66469cbb3 |
| institution | Directory Open Access Journal |
| issn | 2451-9944 |
| language | English |
| last_indexed | 2024-12-10T19:24:21Z |
| publishDate | 2019-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Neurobiology of Sleep and Circadian Rhythms |
| spelling | doaj.art-722dc38f99194cb79b6c1ce66469cbb32022-12-22T01:36:24ZengElsevierNeurobiology of Sleep and Circadian Rhythms2451-99442019-01-0165361Does working memory improvement benefit from sleep in older adults?Negin Sattari0Lauren N. Whitehurst1Maryam Ahmadi2Sara C. Mednick3Department of Cognitive Science, University of California Irvine, CA, USADepartment of Psychiatry, University of California San Francisco, CA, USADepartment of Cognitive Science, University of California Irvine, CA, USADepartment of Cognitive Science, University of California Irvine, CA, USA; Corresponding author.Working Memory (WM), is an important factor influencing many higher-order cognitive functions that decline with age. Repetitive training appears to increase WM, yet the mechanisms underlying this improvement are not understood. Sleep has been shown to benefit long-term memory formation and may also play a role in WM enhancement in young adults. However, considering age-related decline in sleep, it is uninvestigated whether sleep will facilitate WM in older adults. In the present work, we investigated the impact of a nap, quiet wakefulness (QW) and active wakefulness (AW) on within-day training on the Operation Span (OSPAN) task in older adults. Improvement in WM was found following a nap and QW, but not active wake. Furthermore, better WM was associated with shared electrophysiological features, including slow oscillation (SO, 0.5–1 Hz) power in both the nap and QW, and greater coupling between SO and sigma (12–15 Hz) in the nap. In summary, our data suggest that WM improvement in older adults occurs opportunistically during offline periods that afford enhancement in slow oscillation power, and that further benefits may come with cross-frequency coupling of neural oscillations during sleep. Keywords: Executive function, Sigma/SO coupling, Napping, Slow oscillation, Quiet wake, Active wakehttp://www.sciencedirect.com/science/article/pii/S2451994418300282 |
| spellingShingle | Negin Sattari Lauren N. Whitehurst Maryam Ahmadi Sara C. Mednick Does working memory improvement benefit from sleep in older adults? Neurobiology of Sleep and Circadian Rhythms |
| title | Does working memory improvement benefit from sleep in older adults? |
| title_full | Does working memory improvement benefit from sleep in older adults? |
| title_fullStr | Does working memory improvement benefit from sleep in older adults? |
| title_full_unstemmed | Does working memory improvement benefit from sleep in older adults? |
| title_short | Does working memory improvement benefit from sleep in older adults? |
| title_sort | does working memory improvement benefit from sleep in older adults |
| url | http://www.sciencedirect.com/science/article/pii/S2451994418300282 |
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