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FIG 1. Motor activation during the visuomotor response task. Activation was superimposed onto normalized T1-weighted MR images by using SPM99. All regions displayed showed significant activation (P < .001 uncorrected for multiple comparisons). Top row, Individual SPM99 maps of a representative male subject show contralateral and ipsilateral M1 activation. Bottom row, Individual SPM99 maps of a representative female subject show similar degrees of left M1 and SMA activation.