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The main findings, are related to the reactivation of newly acquired memory representations in hippocampal networks that stimulates a transfer and integration of these representations into neocortical neuronal networks as the most important mechanism of memory consolidation. However, the authors give an account of these findings in the article discussed as well.
A more comprehensive review is offered by Frank Marcos and Benington Joel in an article called "The Role of Sleep in Memory Consolidation and Brain Plasticity: Dream or Reality?" published in the Neuroscientist (12/2006). The authors make reference to current evidence for and against the hypothesis that sleep facilitates memory consolidation and promotes plastic changes in the brain. The findings of the study refer to the fact that despite recent accumulation of positive outcomes the precise role of sleep in memory and brain plasticity remains uncertain. They suggest the employment of more integrated approaches that combine behavioral and neurophysiological measurements for in vivo models of synaptic plasticity.
However Stickgold R. et al., also...
so cited in the discussed article, reach the same conclusion, as that deduced from Born and colleagues review, that is the important role of sleep has been attested at least for some processes involving learning and memory consolidation and go further by acknowledging that an analysis at multiple levels including genetics, molecular biology, biochemistry, cell biology, developmental biology, neurobiology, cognitive neuroscience, psychology, and even philosophy is needed in order to advance in the field.
Works Cited
Born, Jan, Rasch, Bjrn, Gais, Steffen "Sleep to Remember" Neuroscientist 2006; 12; 410 Retrieved at http://nro.sagepub.com/cgi/content/abstract/12/5/410
Gais, Steffen, Born, Jan "Declarative memory consolidation: Mechanisms acting during human sleep" Learning Memory 2004 11: 679-685
Marcos, Frank, Benington, Joel "The Role of Sleep in Memory Consolidation and Brain Plasticity: Dream or Reality?" Neuroscientist 2006, 12(6):477-488.
Stickgold, Robert, Fosse, Roar, Walker, Matthew "Linking brain and behavior in sleep-dependent learning and memory…
Works Cited
Born, Jan, Rasch, Bjrn, Gais, Steffen "Sleep to Remember" Neuroscientist 2006; 12; 410 Retrieved at http://nro.sagepub.com/cgi/content/abstract/12/5/410
Gais, Steffen, Born, Jan "Declarative memory consolidation: Mechanisms acting during human sleep" Learning Memory 2004 11: 679-685
Marcos, Frank, Benington, Joel "The Role of Sleep in Memory Consolidation and Brain Plasticity: Dream or Reality?" Neuroscientist 2006, 12(6):477-488.
Stickgold, Robert, Fosse, Roar, Walker, Matthew "Linking brain and behavior in sleep-dependent learning and memory consolidation" PNAS 2002, December 24, vol. 99 no. 26 16519 -16521
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