Catecholaminergic Modulation of Large-Scale Network Dynamics Is Tied to the Reconfiguration of Corticostriatal Connectivity.

Autor: Hill JA; Biomedical Research Center, National Institute on Drug Abuse Intramural Research Program, Baltimore, Maryland, USA., Korponay C; McLean Imaging Center, McLean Hospital, Belmont, Massachusetts, USA.; Department of Psychiatry, Harvard Medical School, Boston, Massachusetts, USA., Salmeron BJ; Biomedical Research Center, National Institute on Drug Abuse Intramural Research Program, Baltimore, Maryland, USA., Ross TJ; Biomedical Research Center, National Institute on Drug Abuse Intramural Research Program, Baltimore, Maryland, USA., Janes AC; Biomedical Research Center, National Institute on Drug Abuse Intramural Research Program, Baltimore, Maryland, USA.
Jazyk: angličtina
Zdroj: Human brain mapping [Hum Brain Mapp] 2024 Dec 01; Vol. 45 (17), pp. e70086.
DOI: 10.1002/hbm.70086
Abstrakt: Large-scale brain network function is critical for healthy cognition, yet links between such network function, neurochemistry, and smaller-scale neurocircuitry are unclear. Here, we evaluated 59 healthy individuals using resting-state fMRI to determine how network-level temporal dynamics were impacted by two well-characterized pharmacotherapies targeting catecholamines: methylphenidate (20 mg) and haloperidol (2 mg)-administered via randomized, double-blind, placebo-controlled design. Network temporal dynamic changes were tested for links with drug-induced alterations in complex corticostriatal connections as this circuit is a primary site of action for both drugs. Methylphenidate increased time in the default mode network state (DMN p < 0.001) and dorsal attention network state (DAN p < 0.001) and reduced time in the frontoparietal network state (p < 0.01). Haloperidol increased time in a sensory motor-DMN state (p < 0.01). The magnitude of change in network dynamics induced by methylphenidate vs. placebo correlated with the magnitude of methylphenidate-induced rearrangement of complex corticostriatal connectivity (R = 0.32, p = 0.014). Haloperidol did not alter complex corticostriatal connectivity. Methylphenidate enhanced time in network states involved in internal and external attention (DMN and DAN, respectively), aligning with methylphenidate's established role in attention. Methylphenidate also significantly changed complex corticostriatal connectivity by altering the relative strength between multiple corticostriatal connections, indicating that methylphenidate may shift which corticostriatal connections are prioritized relative to others. Findings show that these corticostriatal circuit changes are linked with large-scale network temporal dynamics. Collectively, these findings provide a deeper understanding of large-scale network function, set a stage for mechanistic understanding of network engagement, and provide useful information to guide medication use based on network-level effects. Trial Registration: Registry name: ClinicalTrials.gov; URL: Brain Networks and Addiction Susceptibility-Full Text View-ClinicalTrials.gov; URL Plain text: https://classic.clinicaltrials.gov/ct2/show/NCT01924468; Identifier: NCT01924468.
(© 2024 The Author(s). Human Brain Mapping published by Wiley Periodicals LLC. This article has been contributed to by U.S. Government employees and their work is in the public domain in the USA.)
Databáze: MEDLINE
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