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Neurometrics does not detect 'pure' dyslexics.

C D Yingling, D Galin, G Fein

    Electroencephalography and Clinical Neurophysiology
    |May 1, 1986
    PubMed
    Summary
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    Neurometrics, a brainwave analysis technique, did not distinguish severely dyslexic boys from good readers. This suggests specific neurometric abnormalities are not inherently linked to severe dyslexia.

    Area of Science:

    • Neuroscience
    • Developmental Psychology
    • Biomedical Engineering

    Background:

    • Neurometrics, utilizing electroencephalography (EEG) spectra and evoked potentials, has been used to identify learning disabilities.
    • Previous studies suggested neurometric deviance scores could differentiate learning-disabled children from controls.

    Purpose of the Study:

    • To investigate if neurometrics can differentiate severely dyslexic boys from good readers.
    • To determine if severe dyslexia is associated with specific neurometric abnormalities.

    Main Methods:

    • Evaluated 38 severely dyslexic boys and 38 good readers using neurometrics.
    • Neurometrics involved analyzing EEG spectra and evoked potentials against a normative population.
    • Subjects underwent screening for normal intellectual, neurological, sensory, and emotional status.

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    Main Results:

    • Neurometric deviance scores did not significantly discriminate between dyslexic and control groups.
    • Most subjects, regardless of reading ability, were classified as 'normal' by the neurometric procedure.
    • The false positive rate in the control group was comparable to previous findings.

    Conclusions:

    • Severe dyslexia, in this cohort, was not associated with the specific neurometric abnormalities previously reported.
    • Neurometrics may not be a reliable diagnostic tool for severe dyslexia in otherwise typically developing individuals.