6533b824fe1ef96bd12812ca

RESEARCH PRODUCT

Separating mismatch negativity (MMN) response from auditory obligatory brain responses in school-aged children

Gerd Schulte-körneFerenc HonbolygóJean-françois DémonetJean-françois DémonetJean-françois DémonetValéria CsépeLohvansuu KaisaPaavo H.t. LeppänenJennifer BruderJarmo A. HämäläinenA. TanskanenJürgen Bartling

subject

School age childEndocrine and Autonomic SystemsCognitive NeuroscienceGeneral NeuroscienceEqual probabilityContrast (statistics)Mismatch negativityExperimental and Cognitive PsychologyNeuropsychology and Physiological PsychologyDevelopmental NeuroscienceNeurologyVowelLanguage speechPsychologyBiological PsychiatryCognitive psychology

description

Mismatch negativity (MMN) overlaps with other auditory event-related potential (ERP) components. We examined the ERPs of 50 9- to 11-year-old children for vowels /i/, /y/ and equivalent complex tones. The goal was to separate MMN from obligatory ERP components using principal component analysis and equal probability control condition. In addition to the contrast of the deviant minus standard response, we employed the contrast of the deviant minus control response, to see whether the obligatory processing contributes to MMN in children. When looking for differences in speech deviant minus standard contrast, MMN starts around 112 ms. However, when both contrasts are examined, MMN emerges for speech at 160 ms whereas for nonspeech MMN is observed at 112 ms regardless of contrast. We argue that this discriminative response to speech stimuli at 112 ms is obligatory in nature rather than reflecting change detection processing.

yearjournalcountryeditionlanguage
2013-04-12Psychophysiology
https://doi.org/10.1111/psyp.12048