Journal
CURRENT BIOLOGY
Volume 16, Issue 13, Pages 1290-1294Publisher
CELL PRESS
DOI: 10.1016/j.cub.2006.05.024
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Funding
- NHLBI NIH HHS [K30-HL04095, T32-HL007901] Funding Source: Medline
- NIMH NIH HHS [R01-MH067008, R01-MH048832] Funding Source: Medline
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Mounting behavioral evidence in humans supports the claim that sleep leads to improvements in recently acquired, nondeclarative memories. Examples include motor-sequence learning [1, 2]; visual-discrimination learning [3]; and perceptual learning of a synthetic language [4]. In contrast, there are limited human data supporting a benefit of sleep for declarative (hippocampus-mediated) memory in humans (for review, see [5]). This is particularly surprising given that animal models (e.g., [6-8]) and neuroimaging studies (e.g., [9]) predict that sleep facilitates hippocampus-based memory consolidation. We hypothesized that we could unmask the benefits of sleep by challenging the declarative memory system with competing information (interference). This is the first study to demonstrate that sleep protects declarative memories from subsequent associative interference, and it has important implications for understanding the neurobiology of memory consolidation.
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