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- W2000421906 abstract "The basal forebrain cholinergic system has been implicated in the reorganization of adult cortical sensory and motor representations under many, but not all, experimental conditions. It is still not fully understood which types of plasticity require the cholinergic system and which do not. In this study, we examine the hypothesis that the basal forebrain cholinergic system is required for eliciting plasticity associated with complex cognitive processing (e.g., behavioral experiences that drive cortical reorganization) but is not required for plasticity mediated under behaviorally independent conditions. We used established experimental manipulations to elicit two distinct forms of plasticity within the motor cortex: facial nerve transections evoke reorganization of cortical motor representations independent of behavioral experience, and skilled forelimb training induces behaviorally dependent expansion of forelimb motor representations. In animals that underwent skilled forelimb training in conjunction with a facial nerve lesion, cholinergic mechanisms were required for mediating the behaviorally dependent plasticity associated with the skilled motor training but were not necessary for mediating plasticity associated with the facial nerve transection. These results dissociate the contribution of cholinergic mechanisms to distinct forms of cortical plasticity and support the hypothesis that the forebrain cholinergic system is selectively required for modulating complex forms of cortical plasticity driven by behavioral experience." @default.
- W2000421906 created "2016-06-24" @default.
- W2000421906 creator A5055508729 @default.
- W2000421906 creator A5060138037 @default.
- W2000421906 creator A5090135339 @default.
- W2000421906 date "2009-05-06" @default.
- W2000421906 modified "2023-10-16" @default.
- W2000421906 title "The Basal Forebrain Cholinergic System Is Required Specifically for Behaviorally Mediated Cortical Map Plasticity" @default.
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- W2000421906 doi "https://doi.org/10.1523/jneurosci.0230-09.2009" @default.
- W2000421906 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6665226" @default.
- W2000421906 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/19420265" @default.
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