Neuroimaging study for exploring remaining cortical function of aphasic patients

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The current study explored the remaining cortical function of aphasic patients using functional neuroimaging technique exemplified as optical topography. Among two major language tasks, namely, naming and verbal fluency tasks, which have seemed suitable for this purpose, we verified that the naming task had clearer laterality with large enough signal amplitudes. Optical topography analyses on aphasic patients at sub-acute phase revealed that activation of the left Wernicke area might be a typical neural signature to represent compensational cortical activation for the dysfunction of the Broca area.