Lower blood levels of vitamin B12 are related to decreased performance of healthy subjects in the Stroop Color-Word Test

N. Bohnen*, J. Jolles, C.P. Degenaar

*Corresponding author for this work

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    Abstract

    The effects of age and sex on the serum levels of vitamin B12 were determined after an overnight fast in 80 adult ambulatory, disease-free persons who had undergone rigorous health screening and neuropsychological testing. No significant age or sex differences were found. When adjusted for the effects of age and education, it appeared that individual vitamin B12 levels influenced cognitive functioning, in that subjects with lower vitamin B12 levels performed the Stroop test significantly less well than persons with higher levels of the vitamin, especially on a modified subtask of increased complexity.
    Original languageEnglish
    Pages (from-to)53-56
    Number of pages4
    JournalNeuroscience Research Communications
    Volume11
    Issue number1
    Publication statusPublished - 1 Jan 1992

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