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The neuropsychology of hallucinations

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Author(s): Pavlović D.M. | Pavlović Aleksandra M. | Lačković Maja

Journal: Archives of Biological Sciences
ISSN 0354-4664

Volume: 63;
Issue: 1;
Start page: 43;
Date: 2011;
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Keywords: Hallucinations | neuropsychology | cognition | brain | internal speech

ABSTRACT
Hallucinations are a psychopathological phenomenon with neuropsychological, neuroanatomical and pathophysiological correlates in specific brain areas. They can affect any of the senses, but auditory and visual hallucinations predominate. Verbal hallucinations reveal no gross organic lesions while visual hallucinations are connected to defined brain lesions. Functional neuroimaging shows impairments in modality specific sensory systems with the hyperactivity of the surrounding cerebral cortex. Disinhibition and expansion of the inner speech was noted with impaired internal monitoring in auditory verbal hallucinations. The subcortical areas and modal-specific associative cortex and cingulate cortex are essential for the occurrence of hallucinations.

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