Nigrostriatal dopamine pathway regulates auditory discrimination behavior.

Autor: Chen APF; Department of Neurobiology and Behavior, Stony Brook University, Stony Brook, NY, 11794, USA.; Medical Scientist Training Program, Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, 11794, USA., Malgady JM; Department of Neurobiology and Behavior, Stony Brook University, Stony Brook, NY, 11794, USA., Chen L; Department of Neurobiology and Behavior, Stony Brook University, Stony Brook, NY, 11794, USA., Shi KW; Department of Neurobiology and Behavior, Stony Brook University, Stony Brook, NY, 11794, USA., Cheng E; Department of Neurobiology and Behavior, Stony Brook University, Stony Brook, NY, 11794, USA.; Department of Physiology and Biophysics, Stony Brook University, Stony Brook, NY, 11794, USA., Plotkin JL; Department of Neurobiology and Behavior, Stony Brook University, Stony Brook, NY, 11794, USA.; Center for Nervous System Disorders, Stony Brook University, Stony Brook, NY, 11794, USA., Ge S; Department of Neurobiology and Behavior, Stony Brook University, Stony Brook, NY, 11794, USA., Xiong Q; Department of Neurobiology and Behavior, Stony Brook University, Stony Brook, NY, 11794, USA. qiaojie.xiong@stonybrook.edu.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2022 Oct 08; Vol. 13 (1), pp. 5942. Date of Electronic Publication: 2022 Oct 08.
DOI: 10.1038/s41467-022-33747-2
Abstrakt: The auditory striatum, the tail portion of dorsal striatum in basal ganglia, is implicated in perceptual decision-making, transforming auditory stimuli to action outcomes. Despite its known connections to diverse neurological conditions, the dopaminergic modulation of sensory striatal neuronal activity and its behavioral influences remain unknown. We demonstrated that the optogenetic inhibition of dopaminergic projections from the substantia nigra pars compacta to the auditory striatum specifically impairs mouse choice performance but not movement in an auditory frequency discrimination task. In vivo dopamine and calcium imaging in freely behaving mice revealed that this dopaminergic projection modulates striatal tone representations, and tone-evoked striatal dopamine release inversely correlated with the evidence strength of tones. Optogenetic inhibition of D1-receptor expressing neurons and pharmacological inhibition of D1 receptors in the auditory striatum dampened choice performance accuracy. Our study uncovers a phasic mechanism within the nigrostriatal system that regulates auditory decisions by modulating ongoing auditory perception.
(© 2022. The Author(s).)
Databáze: MEDLINE
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