Mismatch Negativity and the N2B Component Elicited By Pure Tones and Speech Sounds in Anomic Aphasia: a Case Study

Tomé, David; Patrício, Brígida; Manchaiah, Vinaya; Barbosa, Fernando; Teixeira, João Marques

http://hdl.handle.net/10400.22/19043

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Authors

Teixeira, João Marques

Abstract(s)

The auditory processing impairments frequently observed in aphasia are being slowly clarified by using eventrelated potentials (ERPs), a method that allows brain processes to be observed at high temporal resolution. Mismatch negativity (MMN) and the N2b amplitude reflect aspects of echoic memory, attention, and phonological representation. This study evaluates the auditory processing of speech and pure tones in an anomic aphasia subject 6 years after a stroke, and investigates whether ERPs can detect possible neurophysiologic sequelae after recovery and rehabilitation.

Keywords

Mismatch negativity (MMN) N2b Anomic aphasia Auditory processing

URI

http://hdl.handle.net/10400.22/19043

Citation

Tomé, D., Patrício, B. F., Manchaiah, V., Barbosa, F., & Marques-Teixeira, J. (2015). Mismatch negativity and the n2b component elicited by pure tones and speech sounds in anomic aphasia: a case study. Journal of Hearing Science, 5(2), 51. https://www.journalofhearingscience.com/Issue-2-2015,8555