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Activation of Heschl's gyrus during auditory hallucinations.

Neuron | Mar 27, 1999

http://www.ncbi.nlm.nih.gov/pubmed/10197540

Apart from being a common feature of mental illness, auditory hallucinations provide an intriguing model for the study of internally generated sensory perceptions that are attributed to external sources. Until now, the knowledge about the cortical network that supports such hallucinations has been restricted by methodological limitations. Here, we describe an experiment with paranoid schizophrenic patients whose on- and offset of auditory hallucinations could be monitored within one functional magnetic resonance imaging (fMRI) session. We demonstrate an increase of the blood oxygen level-dependent (BOLD) signal in Heschl's gyrus during the patients' hallucinations. Our results provide direct evidence of the involvement of primary auditory areas in auditory verbal hallucinations and establish novel constraints for psychopathological models.

Pubmed ID: 10197540 RIS Download

Mesh terms: Acoustic Stimulation | Adult | Auditory Cortex | Brain Mapping | Female | Hallucinations | Hearing | Humans | Image Processing, Computer-Assisted | Magnetic Resonance Imaging | Male | Oxygen | Schizophrenia, Paranoid | Schizophrenic Psychology

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