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Related Experiment Videos

Phoneme discrimination in schizophrenia.

B T Kugler, D J Caudrey

    The British Journal of Psychiatry : the Journal of Mental Science
    |January 1, 1983
    PubMed
    Summary
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    Schizophrenia patients show impaired phonemic differentiation, suggesting a left-hemisphere brain dysfunction specific to this condition. This auditory processing deficit was not observed in healthy or depressed individuals.

    Area of Science:

    • Neuroscience
    • Psychiatry
    • Auditory Processing

    Background:

    • Schizophrenia is a complex mental disorder.
    • Auditory processing, particularly phonemic differentiation, may be affected in schizophrenia.

    Purpose of the Study:

    • To investigate auditory processing differences in schizophrenia.
    • To determine if phonemic differentiation deficits are specific to schizophrenia.

    Main Methods:

    • Phonetic judgment task administered to schizophrenic patients and healthy/depressed controls.
    • Comparison of performance between groups.

    Main Results:

    • Schizophrenic subjects exhibited a significant deficit in phonemic differentiation.
    • This deficit was specific to the schizophrenic group, not seen in controls.

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    Conclusions:

    • Findings support a central dysfunction lateralized to the left hemisphere in schizophrenia.
    • Auditory and phonemic processing may be key areas affected in the disorder.