Different patterns of language activation in post-stroke aphasia are detected by overt and covert versions of the verb generation fMRI task.

Associations between lesion size and performance Lesion volume had significant negative associations with performance on the Controlled Oral Word Association Test ( r =−0.63, p =0.0092) and the Semantic Fluency Test ( r =−0.53, p =0.033), and showed a trend towards a negative association with ER-VGT verb generation performance ( r =−0.45, p =0.081).

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