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Julien Doyon Maria Korman Amélie Morin Valérie Dostie Abdallah Hadj Tahar Habib Benali Avi Karni Leslie G. Ungerleider Julie Carrier 《Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale》2009,195(1):15-26
There is increasing evidence supporting the notion that the contribution of sleep to consolidation of motor skills depends
on the nature of the task used in practice. We compared the role of three post-training conditions in the expression of delayed
gains on two different motor skill learning tasks: finger tapping sequence learning (FTSL) and visuomotor adaptation (VMA).
Subjects in the DaySleep and ImmDaySleep conditions were trained in the morning and at noon, respectively, afforded a 90-min nap early in the afternoon and were re-tested
12 h post-training. In the NightSleep condition, subjects were trained in the evening on either of the two learning paradigms and re-tested 12 h later following
sleep, while subjects in the NoSleep condition underwent their training session in the morning and were re-tested 12 h later without any intervening sleep. The
results of the FTSL task revealed that post-training sleep (day-time nap or night-time sleep) significantly promoted the expression
of delayed gains at 12 h post-training, especially if sleep was afforded immediately after training. In the VMA task, however,
there were no significant differences in the gains expressed at 12 h post-training in the three conditions. These findings
suggest that “off-line” performance gains reflecting consolidation processes in the FTSL task benefit from sleep, even a short
nap, while the simple passage of time is as effective as time in sleep for consolidation of VMA to occur. They also imply
that procedural memory consolidation processes differ depending on the nature of task demands.
J. Doyon and M. Korman contributed equally. 相似文献