Citation

Becker F, Reinvang I. Brain Lang. 2007; 100(1): 69-78.

Copyright

(Copyright © 2007, Academic Press)

DOI

10.1016/j.bandl.2006.09.004

PMID

unavailable

Abstract

This study used the event-related brain potential mismatch negativity (MMN) to investigate preconscious discrimination of harmonically rich tones (differing in duration) and consonant-vowel syllables (differing in the initial consonant) in aphasia. Eighteen Norwegian aphasic patients, examined on average 3 months after brain injury, were compared to 11 healthy controls. The main finding was a difference in topographic distribution of the MMN: the aphasia group showed a less lateralized and centralized topographic pattern especially to CV syllables, which is consistent with a reduced temporal lobe processing contribution and an increased right hemisphere activation. No correlations between MMN amplitude and aphasia test results were found.

Language: en