In their article, Shergill et al1
present evidence that auditory hallucinations might be related to a lack of
awareness that inner speech has been generated. Using functional magnetic
resonance imaging, they compared voxels during spontaneous auditory hallucinations
and normal inner speech. Their results indicate that some regions of the auditory
and speech processing pathways are abnormally inactivated during hallucinations,
whereas other regions are abnormally activated.
Gomez JF. Disconnected Networks During Auditory Hallucinations and Dreams: A Topological Problem for Neuroimaging? Arch Gen Psychiatry. 2002;59(5):468–469. doi:
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