Speech elicited mismatch negativity in patients with aphasia
نویسندگان
چکیده
Thirty four aphasic patients were included in this study. They were classified into three subgroups; expressive, receptive and mixed. The control group included also 34 subjects with matched age and gender. Event-related potential (Mismatch Negativity test) was elicited using Arabic speech stimuli. Results showed that speech processing at cortical levels was impaired in aphasics. Furthermore, aphasic patients of different types differed significantly from the control group in all the parameters of the MMN test. The results pointed to the importance of using speech elicited MMN in the follow up of aphasic patients. (Egypt J. Neurol. Psychiat. Neurosurg., 2004, 41(2): 521-530).
منابع مشابه
Impaired speech perception in aphasic patients: event-related potential and neuropsychological assessment.
The mismatch negativity component (MMN) of auditory event-related potentials (ERP) was recorded in four aphasic patients and in age, gender and education matched controls. The MMN changes elicited by tone, vowel, voicing stop consonant and place-of articulation contrasts were recorded over both hemispheres. The results of MMN amplitude, latency and distribution differences between aphasics and ...
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........ ................................................................................................................ 5 Acknowledgements ...................................................................................................... 6 List of original publications ........................................................................................ 7
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