Dissociation of Broca's area from Broca's aphasia in patients undergoing neurosurgical resections.

Objective: Broca's aphasia is a syndrome of impaired fluency with retained comprehension. The authors used an unbiased algorithm to examine which neuroanatomical areas are most likely to result in Broca's aphasia following surgical lesions.

Methods: Patients were prospectively evaluated with standardized language batteries before and after surgery.