Neuroscience 2002 Abstract
| Presentation Number: | 278.21 |
|---|---|
| Abstract Title: | When practice makes perfect - robust post-training gains in motor performance during sleep. |
| Authors: |
Korman, M.*1
; Raz, N.3
; Flash, T.1
; Karni, A.2
1Weizmann Institute of Science, Rehovot, Israel 2Haifa University, Haifa, Israel 3Inst. of Gerontology, Wayne State University, Detroit, MI |
| Primary Theme and Topics |
Cognition and Behavior - Human Cognition and Behavior -- Learning and memory |
| Session: |
278. Human cognition and behavior: learning and memory IV Poster |
| Presentation Time: | Monday, November 4, 2002 8:00 AM-9:00 AM |
| Location: | Hall A2-B3 M-17 |
| Keywords: | procedural memory, skill acquisition |
The acquisition of skilled motor performance is characterized by a distinct time-course indicating a multistage process of learning (Karni et al 1998; Hikosaka et al. 1999). We have recently shown that within 24 hours post-training, robust quantitative and qualitative changes occur in the knowledge of a trained sequence of movements, in a step-wise manner (Korman et al SFN 2001). Here, we present behavioral data supporting the conjecture that human motor learning is subserved by a process similar to that subserving the consolidation of perceptual skills (Karni et al. 1994; Stickgold et al. 2000). To test the relative contributions of time versus time in sleep to delayed gains in motor performance we measured the speed and accuracy of sequential finger tapping movements using the non-dominant hand in 15 right-handed individuals at two sessions spaced 12 hours apart. An over-day (OD) group was tested and trained in the morning and re-tested in the evening with no sleep allowed during the day, whereas the participants of the over-night group (ON) were first tested and trained in the evening and re-tested the next morning after normal sleep. All individuals of the ON group improved significantly during the interval. In contrast, the OD group, without sleep, did not improve during the interval. Both groups, however, achieved significant delayed gains by 48 hours post-training. Our results suggest that the consolidation of motor skill learning benefits from sleep.
Supported by Dominic-Einhorn Foundation
Sample Citation:
[Authors]. [Abstract Title]. Program No. XXX.XX. 2002 Neuroscience Meeting Planner. Orlando, FL: Society for Neuroscience, 2002. Online.
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