Cited by 699Functional Brain Connectivity StudiesAdvanced MRI Techniques and ApplicationsAdvanced Neuroimaging Techniques and Applications

Detection of functional connectivity using temporal correlations in MR images

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Hampson, Michelle, Peterson, Bradley S., Skudlarski, Pawel, Gatenby, James C., Gore, John C.·2002·Human Brain Mapping

Abstract

Functional connectivity among brain regions has been investigated via an analysis of correlations between regional signal fluctuations recorded in magnetic resonance (MR) images obtained in a steady state. In comparison with studies of functional connectivity that utilize task manipulations, the analysis of correlations in steady state data is less susceptible to confounds arising when functionally unrelated brain regions respond in similar ways to changes in task. A new approach to identifying interregional correlations in steady state data makes use of two independent data sets. Regions of interest (ROIs) are defined and hypotheses regarding their connectivity are generated in one data set. The connectivity hypotheses are then evaluated in the remaining (independent) data set by analyzing low frequency temporal correlations between regions. The roles of the two data sets are then reversed and the process repeated, perhaps multiple times. This method was illustrated by application to the language system. The existence of a functional connection between Broca's area and Wernicke's area was confirmed in healthy subjects at rest. An increase in this functional connection when the language system was actively engaged (when subjects were continuously listening to narrative text) was also confirmed. In a second iteration of analyses, a correlation between Broca's area and a region in left premotor cortex was found to be significant at rest and to increase during continuous listening. These findings suggest that the proposed methodology can reveal the presence and strength of functional connections in high-level cognitive systems.

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Authors
Hampson, M., Peterson, B. S., Skudlarski, P., Gatenby, J. C., & Gore, J. C.
Affiliations
Yale University (US)
Venue
Human Brain Mapping
Publisher
Wiley
Published
2002-01-23
Volume
15
Issue
4
Pages
247-262
ISSN
  • 1065-9471 (ISSN-L)
  • 1097-0193
OpenAlex
W2059564226
Cited by
699
References
52
Citations by year
2026: 3 · 2025: 16 · 2024: 23 · 2023: 12 · 2022: 11 · 2021: 24 · 2020: 12 · 2019: 34 · 2018: 16 · 2017: 29 · 2016: 28 · 2015: 37 · 2014: 36 · 2013: 43 · 2012: 56
FWCI
8.88
Type
journal article
Language
en
Open access
Locations
  • Human Brain Mapping (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute of Mental Health (MH 18268, MH59139, R01MH059139, MH-01232, K08MH001232, T32MH018268)
  • National Institute of Neurological Disorders and Stroke (NS 33332, R01NS033332)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
Keywords
functional connectivity, temporal correlation, cross-validation, Broca's area, Wernicke's area, language system, resting-state functional connectivity, premotor cortex
MeSH terms
Adult, Brain Mapping, Female, Frontal Lobe, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Motor Cortex, Temporal Lobe

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