Cortical Reorganization after Rehabilitation in a Patient with Conduction Aphasia Using High-Density EEG

Conduction aphasia is a language disorder occurred after a left-brain injury. It is characterized
by fluent speech production, reading, writing and normal comprehension, while speech repetition is
impaired. The aimof this study is to investigate the cortical responses, induced by language activities,
in a sub-acute stroke patient affected by conduction aphasia before and after an intensive speech therapy
training. The patientwas examined by usingHigh-Density Electroencephalogram(HD-EEG) examination,
while was performing language tasks. The patient was evaluated at baseline and after two months
after rehabilitative treatment. Our results showed that an intensive rehabilitative process, in sub-acute
stroke, could be useful for a good outcome of language deficits. HD-EEG results showed that left
parieto-temporol-frontal areas were more activated after 2 months of rehabilitation training compared
with baseline. Our results provided evidence that an intensive rehabilitation process could contribute to
an inter- and intra-hemispheric reorganization.