Cited by 58Eating Disorders and BehaviorsFunctional Brain Connectivity StudiesRegulation of Appetite and Obesity

Evidence for thalamocortical circuit abnormalities and associated cognitive dysfunctions in underweight individuals with anorexia nervosa

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Biezonski, Dominik, Cha, Jiook, Steinglass, Joanna, Posner, Jonathan·2016·Neuropsychopharmacology

Abstract

Anorexia nervosa (AN) is characterized by extremely low body weight resulting from pathological food restriction, and carries a mortality rate among the highest of any psychiatric illness. AN, particularly during the acute, underweight state of the illness, has been associated with abnormalities across a range of brain regions, including the frontal cortex and basal ganglia. Few studies of AN have investigated the thalamus, a key mediator of information flow through frontal-basal ganglia circuit loops. We examined both thalamic surface morphology using anatomical MRI and thalamo-frontal functional connectivity using resting-state functional MRI. Individuals with AN (n=28) showed localized inward deformations of the thalamus relative to healthy controls (HC, n=22), and abnormal functional connectivity between the thalamus and the dorsolateral and anterior prefrontal cortices. Alterations in thalamo-frontal connectivity were associated with deficits in performance on tasks probing cognitive control (Stroop task) and working memory (Letter-Number Sequencing (LNS) task). Our findings suggest that abnormalities in thalamo-frontal circuits may have a role in mediating aspects of cognitive dysfunction in underweight individuals with AN.

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Authors
Biezonski, D., Cha, J., Steinglass, J., & Posner, J.
Affiliations
New York State Psychiatric Institute (US)
Corresponding author
Biezonski, Dominik
Venue
Neuropsychopharmacology
Published
2015-10-14
Volume
41
Issue
6
Pages
1560-1568
ISSN
  • 0893-133X (ISSN-L)
  • 1740-634X
OpenAlex
W2332561913
Cited by
58
References
56
Citations by year
2026: 5 · 2025: 4 · 2024: 5 · 2023: 4 · 2022: 8 · 2021: 2 · 2020: 6 · 2019: 8 · 2018: 6 · 2017: 6 · 2016: 4
FWCI
6.61
Type
journal article
Language
en
Open access
Locations
  • Neuropsychopharmacology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Seoul National University Open Repository (Seoul National University) (submittedVersion)
Funders
  • Klarman Family Foundation
  • National Institute of Mental Health (K23MH076195, K23 MH76195, MH091249, R21MH099388, MH099388, K23MH091249)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Eating Disorders and Behaviors
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
Keywords
anorexia nervosa, thalamus, cognitive impairment, cognitive control, working memory, dorsolateral prefrontal cortex, anterior prefrontal cortex, underweight, resting-state functional connectivity, Stroop task, letter-number sequencing
MeSH terms
Adolescent, Adult, Anorexia Nervosa, Cerebral Cortex, Cognition Disorders, Female, Humans, Magnetic Resonance Imaging, Neural Pathways, Neuropsychological Tests, Thalamus, Thinness, Case-Control Studies, Young Adult, Functional Neuroimaging

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