Cited by 387Schizophrenia research and treatmentNeural dynamics and brain functionNeuroscience and Neuropharmacology Research

Inhibition of mediodorsal thalamus disrupts thalamofrontal connectivity and cognition

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Parnaudeau, Sebastien, O’Neill, Pia-Kelsey, Bolkan, Scott S., Ward, Ryan D., Abbas, Atheir I., Roth, Bryan L., Balsam, Peter D., Gordon, Joshua A. +1 more·2013·Neuron

Abstract

Cognitive deficits are central to schizophrenia, but the underlying mechanisms still remain unclear. Imaging studies performed in patients point to decreased activity in the mediodorsal thalamus (MD) and reduced functional connectivity between the MD and prefrontal cortex (PFC) as candidate mechanisms. However, a causal link is still missing. We used a pharmacogenetic approach in mice to diminish MD neuron activity and examined the behavioral and physiological consequences. We found that a subtle decrease in MD activity is sufficient to trigger selective impairments in prefrontal-dependent cognitive tasks. In vivo recordings in behaving animals revealed that MD-PFC beta-range synchrony is enhanced during acquisition and performance of a working memory task. Decreasing MD activity interfered with this task-dependent modulation of MD-PFC synchrony, which correlated with impaired working memory. These findings suggest that altered MD activity is sufficient to disrupt prefrontal-dependent cognitive behaviors and could contribute to the cognitive symptoms observed in schizophrenia.

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  1. Jones EG The thalamus 2007 Cambridge University Press New York, N.Y. 2nd edition

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Authors
Parnaudeau, S., O’Neill, P.-K., Bolkan, S. S., Ward, R. D., Abbas, A. I., Roth, B. L., Balsam, P. D., Gordon, J. A., & Kellendonk, C.
Affiliations
  • New York State Psychiatric Institute (US)
  • University of North Carolina at Chapel Hill (US)
Corresponding author
  • Gordon, Joshua A.
  • Kellendonk, Christoph
Venue
Neuron
Publisher
Elsevier BV
Published
2013-03
Volume
77
Issue
6
Pages
1151-1162
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2039170261
Cited by
387
References
61
Citations by year
2026: 17 · 2025: 25 · 2024: 22 · 2023: 25 · 2022: 29 · 2021: 48 · 2020: 37 · 2019: 17 · 2018: 37 · 2017: 33 · 2016: 27 · 2015: 36 · 2014: 18 · 2013: 16
FWCI
22.49
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • HAL (submittedVersion)
  • UNC Libraries
Funders
  • Hope for Depression Research Foundation
  • International Mental Health Research Organization
  • Leon Levy Foundation
  • National Alliance for Research on Schizophrenia and Depression
  • Fondation Fyssen
  • National Institutes of Health (5r01mh096274-06)
  • National Institute of Mental Health (U19MH082441, R01-MH096274, R01MH061887, R21MH093887, R01MH081968, R25MH086466)
  • National Institute of General Medical Sciences (T32GM007250)
  • National Institute of Neurological Disorders and Stroke
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (T32HD007430)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
mediodorsal thalamus, prefrontal cortex, working memory, schizophrenia, cognitive impairment, beta oscillations, neuronal synchronization, mouse model
MeSH terms
Animals, Cognition, Male, Memory, Short-Term, Mice, Inbred C57BL, Neural Inhibition, Neural Pathways, Psychomotor Performance, Prefrontal Cortex, Mediodorsal Thalamic Nucleus, Mice

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