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Intercorrelation of laterality indices

J B Hellige, J L Zatkin, T M Wong

    Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
    |April 1, 1981
    PubMed
    Summary
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    Laterality indices strongly correlate in verbal dichotic listening and word recognition tasks. However, only dichotic listening accuracy positively relates to the magnitude of the laterality effect.

    Area of Science:

    • Cognitive Neuroscience
    • Neuropsychology
    • Psycholinguistics

    Background:

    • Laterality indices are used to quantify brain lateralization.
    • Understanding the relationship between laterality indices and task accuracy is crucial for interpreting cognitive function studies.

    Purpose of the Study:

    • To investigate the intercorrelations among five established laterality indices.
    • To examine the relationship between these indices and overall accuracy in verbal dichotic listening and word recognition tasks.

    Main Methods:

    • Utilized a verbal dichotic listening task.
    • Employed a word recognition task.
    • Calculated and compared five distinct laterality indices.

    Main Results:

    Related Experiment Videos

    • All five laterality indices exhibited high intercorrelations in both tasks.
    • A positive correlation was observed between laterality indices and accuracy in the dichotic listening task.
    • No consistent relationship was found between laterality indices and accuracy in the word recognition task.

    Conclusions:

    • Established laterality indices demonstrate high convergence.
    • The relationship between laterality and accuracy is task-dependent, being significant in dichotic listening but not in word recognition.