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Scatter plots of the correlations between ΔsAA and ΔPEN on the WCST.
Notes: A significant correlation ΔsAA and ΔPEN was found (ρ = 0.650, P < 0.01). ΔsAA = prewalking and postwalking changes in sAA activities. ΔPEN = prewalking and postwalking changes in PEN of the WCST.
Abbreviations: sAA, salivary alpha-amylase; PEN, perseverative errors of Nelson; WCST, Wisconsin Card Sorting Test.
