AI Article Synopsis
- The study investigates how sleep improves motor sequence learning by examining changes in brain connectivity, particularly in the striatum.
- During the experiment, researchers found that the cortico-striatal network showed increased functional integration after sleep compared to just being awake during the day.
- These results suggest that sleep enhances communication between brain regions involved in motor learning, highlighting its importance in skill consolidation.
Article Abstract
The consolidation of motor sequence learning is known to depend on sleep. Work in our laboratory and others have shown that the striatum is associated with this off-line consolidation process. In this study, we aimed to quantify the sleep-dependent dynamic changes occurring at the network level using a measure of functional integration. We directly compared changes in connectivity before and after sleep or the simple passage of daytime. As predicted, the results revealed greater integration within the cortico-striatal network after sleep, but not an equivalent daytime period. Importantly, a similar pattern of results was also observed using a data-driven approach; the increase in integration being specific to a cortico-striatal network, but not to other known functional networks. These findings reveal, for the first time, a new signature of motor sequence consolidation: a greater between-regions interaction within the cortico-striatal system.
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Source |
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6644011 | PMC |
| http://dx.doi.org/10.1016/j.neuroimage.2014.05.022 | DOI Listing |
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