Daytime sleep condenses the time course of motor memory consolidation.

@article{Korman2007, 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.}, address = {Brain-Behavior Research Center, University of Haifa, Mount Carmel, Haifa 31905, Israel.}, author = {Korman, Maria and Doyon, Julien and Doljansky, Julia and Carrier, Julie and Dagan, Yaron and Karni, Avi }, citeulike-article-id = {1580405}, doi = {http://dx.doi.org/10.1038/nn1959}, issn = {1097-6256}, journal = {Nat Neurosci}, keywords = {school, sleep}, month = {August}, posted-at = {2008-07-21 15:31:19}, priority = {2}, title = {Daytime sleep condenses the time course of motor memory consolidation.}, url = {http://dx.doi.org/10.1038/nn1959}, year = {2007} }

TY - JOUR ID - Korman2007 L3 - citeulike-article-id:1580405 TI - Daytime sleep condenses the time course of motor memory consolidation. JF - Nat Neurosci AD - Brain-Behavior Research Center, University of Haifa, Mount Carmel, Haifa 31905, Israel. SN - 1097-6256 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. KW - school KW - sleep AU - Korman, Maria AU - Doyon, Julien AU - Doljansky, Julia AU - Carrier, Julie AU - Dagan, Yaron AU - Karni, Avi PY - 2007/08/12/ UR - http://dx.doi.org/10.1038/nn1959 ER -