Corsi Blocks working memory task. The effects of treatment from the acute (Day 1) analysis (top panels) and the chronic (Day 29) analysis. Data are estimated means (plus SE) derived from the ANCOVA/LMM analysis, using pretreatment (Day 1 pre-dose assessment) data and participant’s age as covariates. The left-hand panels show the results of planned comparisons between placebo and each dose of green oat extract using data averaged across the day, and the right-hand panels shows planned comparisons during each individual assessment. t, p < 0.1; *, p < 0.05; **, p < 0.01; ***, p < 0.001 in comparison to placebo.