Sequence-specific delayed gains in motor fluency evolve after movement observation training in the absence of early sleep
Abstract Following physical practice, delayed, consolidation-phase, gains in the performance of the trained finger-to-thumb opposition sequence (FOS) can be expressed, in young adults, only after a sleep interval is afforded. These delayed gains are order-of-movements specific. However, in several p...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-02-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-53004-4 |
| _version_ | 1797275151326248960 |
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| author | Rinatia Maaravi-Hesseg Sigal Cohen Avi Karni |
| author_facet | Rinatia Maaravi-Hesseg Sigal Cohen Avi Karni |
| author_sort | Rinatia Maaravi-Hesseg |
| collection | DOAJ |
| description | Abstract Following physical practice, delayed, consolidation-phase, gains in the performance of the trained finger-to-thumb opposition sequence (FOS) can be expressed, in young adults, only after a sleep interval is afforded. These delayed gains are order-of-movements specific. However, in several perceptual learning tasks, time post-learning, rather than an interval of sleep, may suffice for the expression of delayed performance gains. Here we tested whether the affordance of a sleep interval is necessary for the expression of delayed performance gains after FOS training by repeated observation. Participants were trained by observing videos displaying a left hand repeatedly performing a 5-element FOS. To assess post-session observation-related learning and delayed gains participants were tested in performing the observed (trained) and an unobserved (new, the 5-elements mirror-reversed) FOS sequences. Repeated observation of a FOS conferred no advantage to its performance, compared to the unobserved FOS, immediately after practice. However, a clear advantage for the observed FOS emerged by 12 h post-training, irrespective of whether this interval included sleep or not; the largest gains appeared by 24 h post-training. These results indicate that time-dependent, offline consolidation processes take place after observation training even in the absence of sleep; akin to perceptual learning rather than physical FOS practice. |
| first_indexed | 2024-03-07T15:09:11Z |
| format | Article |
| id | doaj.art-7d0c205a429149a782683f674c04a4bf |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-07T15:09:11Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-7d0c205a429149a782683f674c04a4bf2024-03-05T18:44:49ZengNature PortfolioScientific Reports2045-23222024-02-0114111010.1038/s41598-024-53004-4Sequence-specific delayed gains in motor fluency evolve after movement observation training in the absence of early sleepRinatia Maaravi-Hesseg0Sigal Cohen1Avi Karni2Sagol Department of Neurobiology, University of HaifaSagol Department of Neurobiology, University of HaifaSagol Department of Neurobiology, University of HaifaAbstract Following physical practice, delayed, consolidation-phase, gains in the performance of the trained finger-to-thumb opposition sequence (FOS) can be expressed, in young adults, only after a sleep interval is afforded. These delayed gains are order-of-movements specific. However, in several perceptual learning tasks, time post-learning, rather than an interval of sleep, may suffice for the expression of delayed performance gains. Here we tested whether the affordance of a sleep interval is necessary for the expression of delayed performance gains after FOS training by repeated observation. Participants were trained by observing videos displaying a left hand repeatedly performing a 5-element FOS. To assess post-session observation-related learning and delayed gains participants were tested in performing the observed (trained) and an unobserved (new, the 5-elements mirror-reversed) FOS sequences. Repeated observation of a FOS conferred no advantage to its performance, compared to the unobserved FOS, immediately after practice. However, a clear advantage for the observed FOS emerged by 12 h post-training, irrespective of whether this interval included sleep or not; the largest gains appeared by 24 h post-training. These results indicate that time-dependent, offline consolidation processes take place after observation training even in the absence of sleep; akin to perceptual learning rather than physical FOS practice.https://doi.org/10.1038/s41598-024-53004-4 |
| spellingShingle | Rinatia Maaravi-Hesseg Sigal Cohen Avi Karni Sequence-specific delayed gains in motor fluency evolve after movement observation training in the absence of early sleep Scientific Reports |
| title | Sequence-specific delayed gains in motor fluency evolve after movement observation training in the absence of early sleep |
| title_full | Sequence-specific delayed gains in motor fluency evolve after movement observation training in the absence of early sleep |
| title_fullStr | Sequence-specific delayed gains in motor fluency evolve after movement observation training in the absence of early sleep |
| title_full_unstemmed | Sequence-specific delayed gains in motor fluency evolve after movement observation training in the absence of early sleep |
| title_short | Sequence-specific delayed gains in motor fluency evolve after movement observation training in the absence of early sleep |
| title_sort | sequence specific delayed gains in motor fluency evolve after movement observation training in the absence of early sleep |
| url | https://doi.org/10.1038/s41598-024-53004-4 |
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