Simultaneous recordings of pupil size variation and locus coeruleus activity in mice.

Simultaneous recordings of pupil size variation and locus coeruleus activity in mice.
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DOI:
10.1016/j.xpro.2023.102785
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发表时间:
2024-03-15
期刊:
影响因子:
--
通讯作者:
Yang, Hongdian
Yang, Hongdian
中科院分区:
其他
文献类型:
--
作者:
Megemont, Marine;Tortorelli, Lucas S.;McBurney-Lin, Jim;Cohen, Jeremiah Y.;O'Connor, Daniel H.;Yang, Hongdian

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An extensive literature describes how pupil size reflects neuromodulatory activity, including the noradrenergic system. Here, we present a protocol for the simultaneous recording of optogenetically identified locus coeruleus (LC) units and pupil diameter in mice under different conditions. We describe steps for building an optrode, performing surgery to implant the optrode and headpost, searching for opto-tagged LC units, and performing dual LC-pupil recording. We then detail procedures for data processing and analysis. For complete details on the use and execution of this protocol, please refer to Megemont et al. Protocol for simultaneous recording of pupil size and locus coeruleus activity in mice Adaptable to targeting different brain regions for a variety of behavioral experiments Enables correlation between pupil size change and locus coeruleus activity Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics. An extensive literature describes how pupil size reflects neuromodulatory activity, including the noradrenergic system. Here, we present a protocol for the simultaneous recording of optogenetically identified locus coeruleus (LC) units and pupil diameter in mice under different conditions. We describe steps for building an optrode, performing surgery to implant the optrode and headpost, searching for opto-tagged LC units, and performing dual LC-pupil recording. We then detail procedures for data processing and analysis.
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