Barnden, Leighton R, Crouch, Benjamin, Kwiatek, Richard et al. · NMR in biomedicine · 2011 · DOI
This study used specialized brain imaging (MRI) to compare 25 people with ME/CFS to 25 healthy controls, looking at brain structure and how it related to fatigue severity and other symptoms. Researchers found that people with ME/CFS showed differences in brainstem volume (a critical part of the brain controlling basic functions) that correlated with how long fatigue had lasted, and unusual patterns in how blood pressure related to brainstem structure. These findings suggest ME/CFS may involve damage to a specific brain region that disrupts the body's automatic control systems.
This study provides structural neuroimaging evidence for brainstem involvement in ME/CFS, moving beyond symptom reporting to identify potential biological mechanisms underlying the condition. Understanding brainstem dysfunction may eventually inform treatment approaches targeting autonomic dysregulation and impaired homeostatic control, core features affecting ME/CFS patients' quality of life.
This study does not prove that brainstem changes cause ME/CFS or are present in all patients with the condition; it shows correlation in a small sample at a single timepoint. The cross-sectional design cannot establish whether brainstem changes precede symptom onset or result from prolonged illness. The authors' proposal about astrocyte dysfunction and the specific nature of the 'insult' remains speculative and requires further investigation.
About the PEM badge: “PEM required” means post-exertional malaise was an explicit required diagnostic criterion for participant inclusion in this study — not that PEM was studied, observed, or discussed. Studies using criteria that do not require PEM (e.g. Fukuda, Oxford) are tagged “PEM not required”. How the atlas works →
The first block is for the primary paper and is the citation you should use in research work. The atlas-snapshot line only applies if you are specifically referring to this atlas’s reading of the paper on the date shown.
Primary citation
Barnden, Leighton R, Crouch, Benjamin, Kwiatek, Richard, Burnet, Richard, Mernone, Anacleto, Chryssidis, Steve, et al. (2011). A brain MRI study of chronic fatigue syndrome: evidence of brainstem dysfunction and altered homeostasis.. NMR in biomedicine. https://doi.org/10.1002/nbm.1692
BibTeX
@article{mecfsatlas-barnden-2011-brain-mri,
author = {Barnden, Leighton R and Crouch, Benjamin and Kwiatek, Richard and Burnet, Richard and Mernone, Anacleto and Chryssidis, Steve and Scroop, Garry and Del Fante, Peter},
title = {A brain MRI study of chronic fatigue syndrome: evidence of brainstem dysfunction and altered homeostasis.},
journal = {NMR in biomedicine},
year = {2011},
doi = {10.1002/nbm.1692},
note = {PubMed: 21560176},
url = {https://www.mecfsatlas.com/evidence/barnden-2011-brain-mri},
}Atlas snapshot reference
ME/CFS Atlas. Generator v1 / Scanner v1.4 / policy v0.1. Accessed 2026-05-28. https://www.mecfsatlas.com/evidence/barnden-2011-brain-mri
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