Event-related potentials associated with sound discrimination versus novelty detection in children

In children, deviant sounds in an oddball paradigm elicit a mismatch negativity (MMN) indexing discrimination of sound change and late difference negativity (LDN) with unknown functional significance. Salient sounds elicit an ERP index if orienting, P3a, and a late negative component, Nc. We compare...

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Bibliographic Details
Published in:Psychophysiology 2004-01, Vol.41 (1), p.130-141
Main Authors: Čeponienė, R., Lepistö, T., Soininen, M., Aronen, E., Alku, P., Näätänen, R.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Arousal - physiology
Attention - physiology
Biological and medical sciences
Cerebral Cortex - physiology
Child
Children
Cognition. Intelligence
Contingent Negative Variation - physiology
Event-related potentials
Event-Related Potentials, P300 - physiology
Evoked Potentials - physiology
Female
Fundamental and applied biological sciences. Psychology
Humans
Late difference negativity
LDN
Male
Mismatch negativity
MMN
Negative component
novelty
Orientation - physiology
Phonetics
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Reaction Time - physiology
Reasoning. Problem solving
Signal Processing, Computer-Assisted
Speech Perception - physiology
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Summary:In children, deviant sounds in an oddball paradigm elicit a mismatch negativity (MMN) indexing discrimination of sound change and late difference negativity (LDN) with unknown functional significance. Salient sounds elicit an ERP index if orienting, P3a, and a late negative component, Nc. We compared children's responses elicited by moderate sound changes and novel sounds to examine the relationships between MMN and LDN, and LDN and Nc. Two components of the Nc, the Nc1 and Nc2, were identified. The scalp topography of LDN differed from those of the MMN and Nc1. Children's early P3a appeared mature but late P3a lacked frontal predominance. The findings suggested that LDN is not linked with either the sensory or attentional processing. It might reflect cognitive, albeit preattentive, processing of sound change. The Nc1 appears to reflect cognitive attentive processing of salient stimuli and the Nc2 might reflect reorienting after distraction.
ISSN:0048-5772
1540-5958
1469-8986
DOI:10.1111/j.1469-8986.2003.00138.x