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Contrast between the different n‐back task classes for healthy controls (N = 15). First line: 2‐back versus 1‐back; second line: 3‐back versus 2‐back, third line: 3‐back versus 1‐back. Positive t‐scores represent positive signal change; negative t‐scores represent negative signal change (P cor < 0.01). [Color figure can be viewed in the online issue, which is available at wileyonlinelibrary.com.]
