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Group activation maps (p < 0.05, uncorrected) obtained from random effects analysis of (left to right) 18 subjects at 3T, 10 subjects at 1.5T, aggregated 28 subjects, and a contrast map between activations observed at 3T and 1.5T. Rows correspond to the indicated Talairach z-coordinate, with activations superimposed on an averaged, spatially normalized, structural image.
