Cited by 121Functional Brain Connectivity StudiesHallucinations in medical conditionsSchizophrenia research and treatment

Reduced connectivity of the auditory cortex in patients with auditory hallucinations: A resting state functional magnetic resonance imaging study

Gavrilescu, M., Rossell, S., Stuart, G. W., Shea, T. L., Innes-Brown, H., Henshall, K., McKay, C., Sergejew, A. A. +2 more·2010·Psychological Medicine

Abstract

BACKGROUND: Previous research has reported auditory processing deficits that are specific to schizophrenia patients with a history of auditory hallucinations (AH). One explanation for these findings is that there are abnormalities in the interhemispheric connectivity of auditory cortex pathways in AH patients; as yet this explanation has not been experimentally investigated. We assessed the interhemispheric connectivity of both primary (A1) and secondary (A2) auditory cortices in n=13 AH patients, n=13 schizophrenia patients without auditory hallucinations (non-AH) and n=16 healthy controls using functional connectivity measures from functional magnetic resonance imaging (fMRI) data. METHOD: Functional connectivity was estimated from resting state fMRI data using regions of interest defined for each participant based on functional activation maps in response to passive listening to words. Additionally, stimulus-induced responses were regressed out of the stimulus data and the functional connectivity was estimated for the same regions to investigate the reliability of the estimates. RESULTS: AH patients had significantly reduced interhemispheric connectivity in both A1 and A2 when compared with non-AH patients and healthy controls. The latter two groups did not show any differences in functional connectivity. Further, this pattern of findings was similar across the two datasets, indicating the reliability of our estimates. CONCLUSIONS: These data have identified a trait deficit specific to AH patients. Since this deficit was characterized within both A1 and A2 it is expected to result in the disruption of multiple auditory functions, for example, the integration of basic auditory information between hemispheres (via A1) and higher-order language processing abilities (via A2).

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Crossref · 10.1017/s0033291709991632

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Authors
Gavrilescu, M., Rossell, S., Stuart, G. W., Shea, T. L., Innes-Brown, H., Henshall, K., McKay, C., Sergejew, A. A., Copolov, D., & Egan, G. F.
Affiliations
  • The University of Melbourne (AU)
  • The Alfred Hospital (AU)
  • Mental Health Research Institute (AU)
  • University of Manchester (GB)
  • Florey Institute of Neuroscience and Mental Health (AU)
Corresponding author
Gavrilescu, M.
Venue
Psychological Medicine
Published
2009-11-06
Volume
40
Issue
7
Pages
1149-1158
ISSN
  • 0033-2917 (ISSN-L)
  • 1469-8978
OpenAlex
W2101837615
Cited by
121
References
58
Citations by year
2026: 2 · 2024: 7 · 2023: 5 · 2022: 8 · 2021: 12 · 2020: 7 · 2019: 4 · 2018: 12 · 2017: 7 · 2016: 12 · 2015: 8 · 2014: 7 · 2013: 6 · 2012: 14
FWCI
3.87
Type
journal article
Language
en
Open access
closed
Locations
  • Psychological Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Research Explorer (The University of Manchester) (publishedVersion)
  • Swinburne figshare (Swinburne University of Technology) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Hallucinations in medical conditions
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
Keywords
auditory hallucinations, auditory cortex, interhemispheric connectivity, primary auditory cortex, secondary auditory cortex, schizophrenia, resting-state functional connectivity, auditory processing deficits, hemispheric integration
MeSH terms
Adult, Auditory Cortex, Female, Hallucinations, Humans, Magnetic Resonance Imaging, Male, Models, Psychological, Nerve Net, Schizophrenia, Severity of Illness Index, Speech Perception, Vocabulary

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