Dichotic listening during auditory hallucinations in schizophrenia

Green, M.F.; Hugdahl, Kenneth; Mitchell, Scherise; Gutkind, Daniel; Christenson, Cynthia D.

doi:10.1016/0920-9964(93)90345-j

Cited by 19 publications

(37 citation statements)

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“…Our findings are also consistent with other data pointing to left temporal lobe abnormalities in the schizophrenia spectrum disorders (McCarley et al 1993a), including neuropsychological (Green et al 1994;Nestor et al 1993;Voglmaier et al 1997); evoked potential (McCarley et al 1993b;O'Donnell et al 1993), and neuroimaging data (for review see Shenton et al 1997;Pearlson et al 1997;Bogerts et al 1990;Rossi et al 1993;Petty et al 1995;Turetsky et al 1995).…”

Section: Discussionsupporting

confidence: 81%

Schizotypal personality disorder and MRI abnormalities of temporal lobe gray matter

Dickey

McCarley

Voglmaier

et al. 1999

Biological Psychiatry

123

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Background-Structural MRI data indicate schizophrenics have reduced left-sided temporal lobe gray matter volumes, especially in the superior temporal gyrus (STG) and medial temporal lobe. Our data further suggest a specificity to schizophrenia spectrum disorders of STG volume reduction. Interpretation of research studies involving schizophrenics may be complicated by the effects of exposure to neuroleptics and chronic illness. Sharing the same genetic diathesis of schizophrenics, subjects with schizotypal personality disorder (SPD) offer a unique opportunity to evaluate commonalities between schizophrenia and SPD, particularly as SPD subjects are characterized by cognitive and perceptual distortions, an inability to tolerate close friendships, and odd behavior, but they are not psychotic and so have generally not been prescribed neuroleptics nor hospitalized. Evaluation of brain structure in SPD may thus offer insight into the "endophenotype" common to both disorders. In addition, differences between groups may suggest which are the brain structures of schizophrenics that contribute to the development of psychosis.

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Section: Discussionsupporting

confidence: 81%

Schizotypal personality disorder and MRI abnormalities of temporal lobe gray matter

Dickey

McCarley

Voglmaier

et al. 1999

Biological Psychiatry

123

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“…This was confirmed by a recent study from Green et al 39, who found that auditory hallucinations were associated with abnormalities in left hemisphere functioning and that these hallucinations were not limited to the time of the hallucinations. They assessed left temporal function by means of the 'dichotic listening test', in which two different test stimuli are presented simultaneously to both ears through earphones.…”

Section: Output Theorysupporting

confidence: 75%

Where do voices come from?

Adler

1997

J R Soc Med

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“…One possible explanation for this inconsistency is that a left-sided decrease in the volume of temporal lobe language areas is confined to schizophrenic patients who have a strong predisposition to auditory hallucinations. This decrease could account for a number of alterations in functional asymmetry in hallucination-prone schizophrenic indi-viduals, such as reduced right ear (left hemisphere) advantage on dichotic listening tasks (10) and reduced left temporal cortical activation when listening to single words (11) or when monitoring inner speech.…”

Section: Objective: the Authors Explored Whether Abnormal Functional mentioning

confidence: 99%

Auditory Hallucinations and the Temporal Cortical Response to Speech in Schizophrenia: A Functional Magnetic Resonance Imaging Study

Woodruff¹,

Wright²,

Bullmore³

et al. 1997

AJP

302

140

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M ost structural imaging studies in schizophrenia emphasize left-sided temporal lobe abnormalities in addition to more diffuse brain abnormalities (1-3). The association between reduced left temporal lobe volume and hallucinations (4, 5) and theories linking temporal lobe asymmetry with the illness (6) have rekindled interest in abnormal asymmetry of temporal lobe structures in schizophrenia. One such region is the planum temporale, part of the superior temporal gyrus, which is usually larger on the left and which has a critical role in supporting language functions in humans (7). Evidence both for and against reduction of left planum temporale size (and hence reduced asymmetry) in schizophrenia has been presented (8, 9). One possible explanation for this inconsistency is that a left-sided decrease in the volume of temporal lobe language areas is confined to schizophrenic patients who have a strong predisposition to auditory hallucinations. This decrease could account for a number of alterations in functional asymmetry in hallucination-prone schizophrenic indiPreliminary results presented at

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Dichotic listening during auditory hallucinations in schizophrenia

Cited by 19 publications

References 0 publications

Schizotypal personality disorder and MRI abnormalities of temporal lobe gray matter

Schizotypal personality disorder and MRI abnormalities of temporal lobe gray matter

Where do voices come from?

Auditory Hallucinations and the Temporal Cortical Response to Speech in Schizophrenia: A Functional Magnetic Resonance Imaging Study

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