69. An approximation to time–frequency analysis of the Mismatch Negativity (MMN) in children with language impairment

Abstract:

Objective To describe in time and frequency the MMN of children with language impairments. Material and methods 12 children (6 boys, 6 girls) were selected with an average age of 5 years 5 months (±SD 4 months), classified in two groups: one with language impairments (LI) and other with typical developmental (TD). EEG was recorded and the MMN was obtained with an oddball paradigm using the words/ajos/(standard) and/ojos/(deviant), and 60 electrodes on the Curry 7.0 XS software from Neuroscan System; frontocentral regions were analyzed (FCz, FC3, FC4) by describing the latencies and amplitudes of the MMN and the frequency band power related to standard and deviant stimuli using EEGLAB 13.5. 4b. Results The MMN was observed at 324 ms for both groups, and its late component called LDN, at 426 ms for TD and 438 ms for LI; there was a smaller amplitude of both components in children with LI …

Año de publicación:

2016

Keywords:

Fuente:

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