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< Supporting Evidence

The Functional Anatomy of Auditory Hallucinations in Schizophrenia

B.R. Lennox, S.B. Park, I. Medley, P.G. Morris, P.B. Jones
Psychiatry Research, November 2000, 100 (1): 13-20.

Excerpt:

"We used continuous whole brain functional magnetic resonance imaging (fMRI) with a 3-T magnet to map the cerebral activation associated with auditory hallucinations in four subjects with schizophrenia. The subjects experienced episodes of hallucination whilst in the scanner so that periods of hallucination could be compared with periods of rest in the same individuals. Group analysis demonstrated shared areas of activation in right and left superior temporal gyri, left inferior parietal cortex and left middle frontal gyrus. When the data were examined on an individual basis, the temporal cortex and prefrontal cortex areas were activated during episodes of hallucination in all four subjects. These findings support the theory that auditory hallucination reflects abnormal activation of normal auditory pathways."