Abstract
ObjectiveTo evaluate the perception of complex ABR (C-ABR) in aphasic patients and to compare it before and 3 months after management of stroke. MethodologyA prospective study was conducted on 30 aphasic patients using C-ABR. The results were compared within 2 weeks post-stroke and 3 months after management. The results of aphasic patients were compared with normal subjects. ResultsThe seven C-ABR waves regarding the onset (wave V and A), offset (peak O), transition (peak C) and frequency following responses (peak D, E and F) were identified in all participants. There was a statistically significant difference in C-ABR latencies between control and study group in the waves D, E, F and O, this means that aphasic patients exhibited abnormal neural synchrony affecting the source elements (fundamental frequency) (waves D, E, F and O) however there was no effect on the filter elements (transients). ConclusionAphasic patients exhibited abnormal neural synchrony affecting the source elements (waves D, E, F and O) however there was no effect on the filter elements (transients).
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