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Related Experiment Videos

Studies of visual information processing in schizophrenic children.

R F Asarnow, T Sherman

    Child Development
    |February 1, 1984
    PubMed
    Summary

    Children with childhood onset schizophrenia exhibit core information-processing impairments, specifically in controlled attentional processes. These deficits manifest as inefficient information acquisition, impacting tasks requiring rapid visual processing.

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    Area of Science:

    • Cognitive Neuroscience
    • Child Psychiatry
    • Developmental Psychology

    Background:

    • Childhood onset schizophrenia presents unique challenges in understanding core cognitive deficits.
    • Previous research indicates information-processing impairments in adult schizophrenia and at-risk children.

    Purpose of the Study:

    • To isolate and characterize core information-processing impairments in children diagnosed with schizophrenia.
    • To investigate the nature of these deficits using visual information-processing tasks.

    Main Methods:

    • Administered visual information-processing tasks, including span-of-apprehension tasks (partial-report and full-report), to children with schizophrenia, mental age-matched controls, and younger controls.
    • Compared performance across groups to identify specific areas of cognitive dysfunction.

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    Main Results:

    • Schizophrenic children showed significant impairment on the partial-report span-of-apprehension task, performing at the level of younger children.
    • This impairment was not observed on the full-report version, suggesting intact iconic and short-term memory.
    • Results indicate inefficient use of information-acquisition strategies rather than a complete deficit.

    Conclusions:

    • Childhood onset schizophrenia is associated with inefficiencies in controlled attentional processes, crucial for middle childhood development.
    • These attentional deficits, not global memory impairments, appear central to the observed information-processing difficulties.