Mismatch negativity to frequency changes
No evidence from human event-related brain potentials for categorical speech processing of complex tones resembling vowel formant structure
Publication date
2004-04-23
Document type
Forschungsartikel
Author
Organisational unit
Institut für Allgemeine Psychologie, Universität Leipzig
Publisher
Elsevier
Series or journal
Neuroscience letters
ISSN
Periodical volume
362
Periodical issue
3
First page
204
Last page
208
Peer-reviewed
✅
Part of the university bibliography
Nein
Language
English
Keyword
Event-related potential (ERP)
Mismatch negativity
Vowel formant structure
Speech perception
Auditory sensory memory
Cognitive electrophysiology
Abstract
Based on a memory-comparison process, changes in the pitch of repetitive sounds are pre-attentively detected, reflected by the mismatch negativity (MMN) event-related brain potential. In the present investigation of categorical speech perception, complex tones were used that consisted of vowel-defining F1 and F2 formant information while not being perceived as speech. MMN was obtained in oddball blocks. The auditory system tracks two simultaneous changes in formant frequencies of 50 Hz while also abstracting from three levels of intensity variation. Lower frequency deviants elicited larger MMN. No effects of language-categorical processing were observed. (© 2004 Elsevier Ireland Ltd. All rights reserved)
Version
Published version
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