Changes in acoustic features and their conjunctions are processed by separate neuronal populations

R. Takegata, M. Huotilainen, T. Rinne, R. Näätänen, I. Winkler

Research output: Contribution to journalArticleScientificpeer-review

Abstract

We investigated the relationship between the neuronal populations involved in detecting change in two acoustic features and their conjunction. Equivalent current dipole (ECD) models of the magnetic mismatch negativity (MMNm) generators were calculated for infrequent changes in pitch, perceived sound source location, and the conjunction of these two features. All of these three changes elicited MMNms that were generated in the vicinity of auditory cortex. The location of the ECD best describing the MMNm to the conjunction deviant was anterior to those for the MMNm responses elicited by either one of the constituent features. The present data thus suggest that at least partially separate neuronal populations are involved in detecting change in acoustic features and feature conjunctions.
Translated title of the contributionChanges in acoustic features and their conjunctions are processed by separate neuronal populations
Original languageEnglish
JournalNeuroReport
Volume12
Issue number3
Pages (from-to)525-529
Number of pages5
ISSN0959-4965
Publication statusPublished - 2001
MoE publication typeA1 Journal article-refereed

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