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Daytime sleep condenses the time course of motor memory consolidation.
Nat Neurosci. 2007 Sep; 10(9):1206-13.NN

Abstract

Two behavioral phenomena characterize human motor memory consolidation: diminishing susceptibility to interference by a subsequent experience and the emergence of delayed, offline gains in performance. A recent model proposes that the sleep-independent reduction in interference is followed by the sleep-dependent expression of offline gains. Here, using the finger-opposition sequence-learning task, we show that an interference experienced at 2 h, but not 8 h, following the initial training prevented the expression of delayed gains at 24 h post-training. However, a 90-min nap, immediately post-training, markedly reduced the susceptibility to interference, with robust delayed gains expressed overnight, despite interference at 2 h post-training. With no interference, a nap resulted in much earlier expression of delayed gains, within 8 h post-training. These results suggest that the evolution of robustness to interference and the evolution of delayed gains can coincide immediately post-training and that both effects reflect sleep-sensitive processes.

Authors+Show Affiliations

Brain-Behavior Research Center, University of Haifa, Mount Carmel, Haifa 31905, Israel. mariakorman@yahoo.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17694051

Citation

Korman, Maria, et al. "Daytime Sleep Condenses the Time Course of Motor Memory Consolidation." Nature Neuroscience, vol. 10, no. 9, 2007, pp. 1206-13.
Korman M, Doyon J, Doljansky J, et al. Daytime sleep condenses the time course of motor memory consolidation. Nat Neurosci. 2007;10(9):1206-13.
Korman, M., Doyon, J., Doljansky, J., Carrier, J., Dagan, Y., & Karni, A. (2007). Daytime sleep condenses the time course of motor memory consolidation. Nature Neuroscience, 10(9), 1206-13.
Korman M, et al. Daytime Sleep Condenses the Time Course of Motor Memory Consolidation. Nat Neurosci. 2007;10(9):1206-13. PubMed PMID: 17694051.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Daytime sleep condenses the time course of motor memory consolidation. AU - Korman,Maria, AU - Doyon,Julien, AU - Doljansky,Julia, AU - Carrier,Julie, AU - Dagan,Yaron, AU - Karni,Avi, Y1 - 2007/08/12/ PY - 2007/06/07/received PY - 2007/07/09/accepted PY - 2007/8/19/pubmed PY - 2008/1/5/medline PY - 2007/8/19/entrez SP - 1206 EP - 13 JF - Nature neuroscience JO - Nat Neurosci VL - 10 IS - 9 N2 - Two behavioral phenomena characterize human motor memory consolidation: diminishing susceptibility to interference by a subsequent experience and the emergence of delayed, offline gains in performance. A recent model proposes that the sleep-independent reduction in interference is followed by the sleep-dependent expression of offline gains. Here, using the finger-opposition sequence-learning task, we show that an interference experienced at 2 h, but not 8 h, following the initial training prevented the expression of delayed gains at 24 h post-training. However, a 90-min nap, immediately post-training, markedly reduced the susceptibility to interference, with robust delayed gains expressed overnight, despite interference at 2 h post-training. With no interference, a nap resulted in much earlier expression of delayed gains, within 8 h post-training. These results suggest that the evolution of robustness to interference and the evolution of delayed gains can coincide immediately post-training and that both effects reflect sleep-sensitive processes. SN - 1097-6256 UR - https://www.unboundmedicine.com/medline/citation/17694051/Daytime_sleep_condenses_the_time_course_of_motor_memory_consolidation_ DB - PRIME DP - Unbound Medicine ER -