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    Unique contributions of parvalbumin and cholinergic interneurons in organizing striatal networks during movement

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    Date Issued
    2019
    Publisher Version
    10.1038/s41593-019-0341-3
    Author(s)
    Gritton, Howard J.
    Howe, William M.
    Romano, Michael F.
    DiFeliceantonio, Alexandra G.
    Kramer, Mark A.
    Saligrama, Venkatesh
    Bucklin, Mark E.
    Zemel, Dana
    Han, Xue
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    Permanent Link
    https://hdl.handle.net/2144/42917
    Version
    Accepted manuscript
    Citation (published version)
    Howard J Gritton, William M Howe, Michael F Romano, Alexandra G DiFeliceantonio, Mark A Kramer, Venkatesh Saligrama, Mark E Bucklin, Dana Zemel, Xue Han. 2019. "Unique contributions of parvalbumin and cholinergic interneurons in organizing striatal networks during movement." Nature neuroscience, Volume 22, pp. 586 - 597.
    Abstract
    Striatal pavalbumin (PV) and cholinergic (CHI) interneurons are poised to play major roles in behavior by coordinating the networks of medium spiny cells that relay motor output. However, the small numbers and scattered distribution of these cells has made it difficult to directly assess their contribution to activity in networks of MSNs during behavior. Here, we build upon recent improvements in single cell calcium imaging combined with optogenetics to test the capacity of PVs and CHIs to affect MSN activity and behavior in mice engaged in voluntarily locomotion. We find that PVs and CHIs have unique effects on MSN activity and dissociable roles in supporting movement. PV cells facilitate movement by refining the activation of MSN networks responsible for movement execution. CHIs, in contrast, synchronize activity within MSN networks to signal the end of a movement bout. These results provide new insights into the striatal network activity that supports movement.
    Description
    Published in final edited form as: Nat Neurosci. 2019 April ; 22(4): 586–597. doi:10.1038/s41593-019-0341-3.
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