Mismatch negativity (MMN) reveals sound grouping in the human brain

Citation
N. Shinozaki et al., Mismatch negativity (MMN) reveals sound grouping in the human brain, NEUROREPORT, 11(8), 2000, pp. 1597-1601
Citations number
18
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Neurosciences & Behavoir
Journal title
NEUROREPORT
ISSN journal
0959-4965 → ACNP
Volume
11
Issue
8
Year of publication
2000
Pages
1597 - 1601
Database
ISI
SICI code
0959-4965(20000605)11:8<1597:MN(RSG>2.0.ZU;2-E
Abstract
To investigate a part of the structure of the memory trace, auditory event- related potentials (ERPs) were recorded from reading subjects while they we re presented with two different stimulus-series simultaneously. A clear mis match negativity (MMN) was obtained from each series, when the stimulus seq uence consisted of a high-frequency series and a low-frequency series. More over, the MMN showed independent elicitation within each series. However, i f the frequency range of one series overlapped with that of the other serie s, the amplitude of the MMN was prominently reduced, suggesting that the tw o processing functions indexed by MMN coexisted simultaneously in the preat tentive acoustic system and were produced by the respective grouping of hig h-frequency tones and low-frequency tones. NeuroReport 11:1597-1601 (C) 200 0 Lippincott Williams & Wilkins.