Basal forebrain control of wakefulness and cortical rhythms

View/ Open
Author
Bass, Caroline E.
Published Version
https://doi.org/10.1038/ncomms9744Metadata
Show full item recordCitation
Anaclet, Christelle, Nigel P. Pedersen, Loris L. Ferrari, Anne Venner, Caroline E. Bass, Elda Arrigoni, and Patrick M. Fuller. 2015. “Basal forebrain control of wakefulness and cortical rhythms.” Nature Communications 6 (1): 8744. doi:10.1038/ncomms9744. http://dx.doi.org/10.1038/ncomms9744.Abstract
Wakefulness, along with fast cortical rhythms and associated cognition, depend on the basal forebrain (BF). BF cholinergic cell loss in dementia and the sedative effect of anti-cholinergic drugs have long implicated these neurons as important for cognition and wakefulness. The BF also contains intermingled inhibitory GABAergic and excitatory glutamatergic cell groups whose exact neurobiological roles are unclear. Here we show that genetically targeted chemogenetic activation of BF cholinergic or glutamatergic neurons in behaving mice produced significant effects on state consolidation and/or the electroencephalogram but had no effect on total wake. Similar activation of BF GABAergic neurons produced sustained wakefulness and high-frequency cortical rhythms, whereas chemogenetic inhibition increased sleep. Our findings reveal a major contribution of BF GABAergic neurons to wakefulness and the fast cortical rhythms associated with cognition. These findings may be clinically applicable to manipulations aimed at increasing forebrain activation in dementia and the minimally conscious state.Other Sources
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4659943/pdf/Terms of Use
This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAACitable link to this page
http://nrs.harvard.edu/urn-3:HUL.InstRepos:23993554
Collections
- HMS Scholarly Articles [18124]
Contact administrator regarding this item (to report mistakes or request changes)