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Cerebral activity associated with auditory verbal hallucinations: a functional magnetic resonance imaging case study.
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Cerebral activity associated with auditory verbal hallucinations: a functional magnetic resonance imaging case study.

Author: LA Bentaleb Affiliation: Fernand-Seguin Research Centre, Louis-H. Lafontaine Hospital, Beauregard-University of Montreal, Centre Hospitalier Universitaire de Montréal, Montreal, Que.; M Beauregard; P Liddle; E Stip
Edition/Format: Article Article : English
Publication:Journal of psychiatry & neuroscience : JPN, 2002 Mar; 27(2): 110-5
Other Databases: WorldCat
Summary:
Among the many theories that have been advanced to explain the mechanism by which auditory verbal hallucinations (AVH) arise, 2 that have received a degree of empirical support are: the hypothesis that AVHs arise from misinterpreted inner speech and the proposal that they arise from aberrant activation of the primary auditory cortex. To test these hypotheses, we were fortunate to be able to study the interesting and  Read more...
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Details

Document Type: Article
All Authors / Contributors: LA Bentaleb Affiliation: Fernand-Seguin Research Centre, Louis-H. Lafontaine Hospital, Beauregard-University of Montreal, Centre Hospitalier Universitaire de Montréal, Montreal, Que.; M Beauregard; P Liddle; E Stip
ISSN:1180-4882
Language Note: English
Unique Identifier: 110633207
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Abstract:

Among the many theories that have been advanced to explain the mechanism by which auditory verbal hallucinations (AVH) arise, 2 that have received a degree of empirical support are: the hypothesis that AVHs arise from misinterpreted inner speech and the proposal that they arise from aberrant activation of the primary auditory cortex. To test these hypotheses, we were fortunate to be able to study the interesting and rare case of a woman with schizophrenia who experienced continuous AVH which disappeared when she listened to loud external speech. Functional magnetic resonance imaging (fMRI) was used to measure the patient's brain activity in the temporal and inferior frontal regions during the AVHs and while the she was listening to external speech. The brain activity of a matched control subject was also recorded under the same experimental conditions. AVHs were associated with increased metabolic activity in the left primary auditory cortex and the right middle temporal gyrus. Our results suggest a possible interaction between these areas during AVHs and also that the hypotheses of defective internal monitoring and aberrant activation are not mutually exclusive. Potential limitations to the generalization of our results are discussed.

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  • avh  (by 1 person)
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