original_query: What is the correlation between lesion location and aphasic symptoms?
query: What is the correlation between lesion location and aphasic symptoms?
answer: There's not always a one-to-one mapping between lesion location and aphasic symptoms.  Lesions in specific brain areas often cause specific symptoms, but case studies show variability.  Damage to Broca's area alone doesn't always cause Broca's aphasia, and Broca's aphasia patients don't always have lesions in Broca's area.