Stress degrades working memory-related frontostriatal circuit function.

Autor:	Berridge CW; Department of Psychology, University of Wisconsin, Madison, WI 53706, United States., Devilbiss DM; Department of Cell Biology and Neuroscience, Rowan University., Martin AJ; Department of Psychology, University of Wisconsin, Madison, WI 53706, United States., Spencer RC; Department of Psychology, University of Wisconsin, Madison, WI 53706, United States., Jenison RL; Department of Psychology, University of Wisconsin, Madison, WI 53706, United States.
Jazyk:	angličtina
Zdroj:	Cerebral cortex (New York, N.Y. : 1991) [Cereb Cortex] 2023 Jun 08; Vol. 33 (12), pp. 7857-7869.
DOI:	10.1093/cercor/bhad084
Abstrakt:	Goal-directed behavior is dependent on neuronal activity in the prefrontal cortex (PFC) and extended frontostriatal circuitry. Stress and stress-related disorders are associated with impaired frontostriatal-dependent cognition. Our understanding of the neural mechanisms that underlie stress-related cognitive impairment is limited, with the majority of prior research focused on the PFC. To date, the actions of stress across cognition-related frontostriatal circuitry are unknown. To address this gap, the current studies examined the effects of acute noise-stress on the spiking activity of neurons and local field potential oscillatory activity within the dorsomedial PFC (dmPFC) and dorsomedial striatum (dmSTR) in rats engaged in a test of spatial working memory. Stress robustly suppressed responses of both dmPFC and dmSTR neurons strongly tuned to key task events (delay, reward). Additionally, stress strongly suppressed delay-related, but not reward-related, theta and alpha spectral power within, and synchrony between, the dmPFC and dmSTR. These observations provide the first demonstration that stress disrupts the neural coding and functional connectivity of key task events, particularly delay, within cognition-supporting dorsomedial frontostriatal circuitry. These results suggest that stress-related degradation of neural coding within both the PFC and striatum likely contributes to the cognition-impairing effects of stress. (© The Author(s) 2023. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permission@oup.com.)
Databáze:	MEDLINE
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