Cited by 73Functional Brain Connectivity StudiesDementia and Cognitive Impairment ResearchTranscranial Magnetic Stimulation Studies

Salience Network Resting-State Activity: Prediction of Frontotemporal Dementia Progression

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Day, Gregory S., Farb, Norman A. S., Tang-Wai, David F., Masellis, Mario, Black, Sandra E., Freedman, Morris, Pollock, Bruce G., Chow, Tiffany W.·2013·JAMA Neurology

Abstract

IMPORTANCE: Noninvasive measures of activity within intrinsic brain networks may be clinically relevant, providing a marker of neurodegenerative disease and predicting clinical behaviors. OBJECTIVE: To correlate baseline resting-state measures within the salience network and changes in behavior among patients with frontotemporal dementia. DESIGN: Baseline resting-state functional magnetic resonance imaging data and longitudinal clinical measures were obtained from prospectively accrued patients during 8 weeks. SETTING: Tertiary academic care center specializing in the assessment and management of patients with neurodegenerative disease. PARTICIPANTS: Fifteen patients with clinically diagnosed frontotemporal dementia (5 behavioral variant and 10 semantic dementia). MAIN OUTCOMES AND MEASURES: Baseline resting-state functional magnetic resonance imaging data measured within regions of interest were regressed on serial behavioral measures from prospectively accrued patients with frontotemporal dementia to determine the ability of baseline resting-state activity to account for changes in behavior. RESULTS: Low-frequency fluctuations in the left insula significantly predicted changes in Frontal Behavioral Inventory scores (standard β = 0.51, P = .049), accounting for 28% of the change variance. The trend was driven by changes in measures of apathy independent of dementia severity. CONCLUSION AND RELEVANCE: Baseline measures of salience network connectivity involving the left insula may predict behavioral changes in patients with frontotemporal dementia.

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Authors
Day, G. S., Farb, N. A. S., Tang-Wai, D. F., Masellis, M., Black, S. E., Freedman, M., Pollock, B. G., & Chow, T. W.
Affiliations
  • University of Toronto (CA)
  • Rotman Research Institute (CA)
  • Sunnybrook Health Science Centre (CA)
  • Mount Sinai Hospital (CA)
  • Centre for Addiction and Mental Health (CA)
Venue
JAMA Neurology
Published
2013-08-19
Volume
70
Issue
10
Pages
1249-53
ISSN
2168-6149 (ISSN-L)
OpenAlex
W1978547012
Cited by
73
References
20
Citations by year
2026: 1 · 2025: 4 · 2024: 3 · 2023: 5 · 2022: 9 · 2021: 6 · 2020: 4 · 2019: 5 · 2018: 8 · 2017: 5 · 2016: 10 · 2015: 8 · 2014: 5
FWCI
4.19
Type
journal article
Language
en
Open access
Locations
  • JAMA Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
Funders
National Institute on Aging (R03AG034413)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Transcranial Magnetic Stimulation Studies
Keywords
salience network, resting-state functional connectivity, frontotemporal dementia, behavioral variant frontotemporal dementia, semantic dementia, left insula, low-frequency fluctuations, apathy, Frontal Behavioral Inventory, neurodegenerative disease biomarkers
MeSH terms
Aged, Brain, Female, Humans, Image Processing, Computer-Assisted, Longitudinal Studies, Magnetic Resonance Imaging, Male, Middle Aged, Neural Pathways, Oxygen, Predictive Value of Tests, Severity of Illness Index, Linear Models, Disease Progression, Frontotemporal Dementia

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