The only other effect of relevance was a marginally significant two-way interaction between 1-back and OSPAN group, showing a more pronounced RT sequential effect for the low OSPAN group (indicated by the difference between the red and purple lines in Figure 1 top for this group), F (1, 50) = 2.88, p < 0.10 (note that this would be significant in a directional test, which would be appropriate here).
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Age-related changes in electrophysiological and neuropsychological indices of working memory, attention control, and cognitive flexibility.
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