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Abstract #0131

Hunting the Source of a Unique Negative fMRI Signal in the Striatum Using Optogenetics

Daniel Albaugh 1 , Garret Stuber 2 , and Yen-Yu Ian Shih 3

1 Curriculum in Neurobiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States, 2 Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States, 3 BRIC, Department of Neurology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States

Neurovascular coupling represents a central tenet of functional MRI research. However, in the rodent striatum, the directionality of vascular responses to neural activity is not always clear. Here, we employ optogenetic-fMRI to uncover two striatal circuit mechanisms of activity-induced vasoconstriction.

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