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Concept usage in schizophrenic children.

H A Walker, M Bortner

    Journal of Autism and Childhood Schizophrenia
    |June 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

    Children with schizophrenia, normal children, and brain-damaged children improved concept usage with age. Schizophrenic children, unlike others, did not benefit from reduced stimulus competition, especially high-IQ individuals.

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    Area of Science:

    • Cognitive Psychology
    • Developmental Psychology
    • Neuropsychology

    Background:

    • Understanding concept usage and categorization is crucial for cognitive development.
    • Deviations in concept formation are observed in developmental disorders and neurological conditions.
    • Schizophrenia and brain damage can impact cognitive processing and categorization abilities.

    Purpose of the Study:

    • To compare concept usage and categorization behavior in children with schizophrenia, normal children, and children with brain damage.
    • To investigate the influence of age and stimulus competition on concept utilization in these groups.
    • To explore the relationship between IQ and concept usage patterns in children with schizophrenia.

    Main Methods:

    • Administered two concept-matching tasks to children across different diagnostic groups (schizophrenic, normal, brain-damaged).

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  • Tasks involved matching an index object with choice objects related by class, function, or stimulus similarity, with varying levels of stimulus competition.
  • Subjects explained their reasoning for object selection.

    • Main Results:

    • All groups showed age-related improvements in using class or function concepts.
    • Schizophrenic children, unlike normal and brain-damaged children, did not consistently benefit from reduced stimulus competition.
    • Within the schizophrenic group, low IQ children performed similarly to brain-damaged children, while high IQ children exhibited more bizarre responses and failed to benefit from reduced competition.

    Conclusions:

    • Age positively influences concept utilization across all studied groups.
    • Schizophrenia presents unique challenges in concept formation, particularly regarding stimulus competition.
    • Cognitive flexibility and response patterns in schizophrenia are modulated by IQ, suggesting distinct subtypes of concept usage.