Sleep directly following learning benefits consolidation of spatial associative memory.

@article{citeulike:2827620, abstract = {The last decade has brought forth convincing evidence for a role of sleep in non-declarative memory. A similar function of sleep in episodic memory is supported by various correlational studies, but direct evidence is limited. Here we show that cued recall of face-location associations is significantly higher following a 12-h retention interval containing sleep than following an equally long period of waking. Furthermore, retention is significantly higher over a 24-h sleep-wake interval than over an equally long wake-sleep interval. This difference occurs because retention during sleep was significantly better when sleep followed learning directly, rather than after a day of waking. These data demonstrate a beneficial effect of sleep on memory that cannot be explained solely as a consequence of reduced interference. Rather, our findings suggest a competitive consolidation process, in which the fate of a memory depends, at least in part, on its relative stability at sleep onset: Strong memories tend to be preserved, while weaker memories erode still further. An important aspect of memory consolidation may thus result from the removal of irrelevant memory "debris."}, address = {Department of Psychology, University of Amsterdam, 1018 WB Amsterdam, The Netherlands. L.M.Talamini@uva.nl}, author = {Talamini, L. M. and Nieuwenhuis, I. L. and Takashima, A. and Jensen, O. }, citeulike-article-id = {2827620}, doi = {10.1101/lm.771608}, issn = {1549-5485}, journal = {Learning \& memory (Cold Spring Harbor, N.Y.)}, keywords = {consolidation, sleep}, number = {4}, pages = {233--237}, posted-at = {2008-05-24 11:09:01}, priority = {2}, title = {Sleep directly following learning benefits consolidation of spatial associative memory.}, url = {http://dx.doi.org/10.1101/lm.771608}, volume = {15}, year = {2008} }

TY - JOUR ID - citeulike:2827620 L3 - citeulike-article-id:2827620 TI - Sleep directly following learning benefits consolidation of spatial associative memory. JF - Learning & memory (Cold Spring Harbor, N.Y.) VL - 15 IS - 4 SP - 233 EP - 237 AD - Department of Psychology, University of Amsterdam, 1018 WB Amsterdam, The Netherlands. L.M.Talamini@uva.nl SN - 1549-5485 N2 - The last decade has brought forth convincing evidence for a role of sleep in non-declarative memory. A similar function of sleep in episodic memory is supported by various correlational studies, but direct evidence is limited. Here we show that cued recall of face-location associations is significantly higher following a 12-h retention interval containing sleep than following an equally long period of waking. Furthermore, retention is significantly higher over a 24-h sleep-wake interval than over an equally long wake-sleep interval. This difference occurs because retention during sleep was significantly better when sleep followed learning directly, rather than after a day of waking. These data demonstrate a beneficial effect of sleep on memory that cannot be explained solely as a consequence of reduced interference. Rather, our findings suggest a competitive consolidation process, in which the fate of a memory depends, at least in part, on its relative stability at sleep onset: Strong memories tend to be preserved, while weaker memories erode still further. An important aspect of memory consolidation may thus result from the removal of irrelevant memory "debris." KW - consolidation KW - sleep AU - Talamini, LM AU - Nieuwenhuis, IL AU - Takashima, A AU - Jensen, O PY - 2008/// UR - http://dx.doi.org/10.1101/lm.771608 ER -