Familiarity of environmental sounds is used to establish auditory rules
Publication date
2012-03-28
Document type
Forschungsartikel
Author
Organisational unit
ISSN
Series or journal
NeuroReport
Periodical volume
23
Periodical issue
5
First page
320
Last page
324
Peer-reviewed
✅
Part of the university bibliography
✅
Keyword
Auditory event-related potential
Auditory long-term memory
Deviance-related processing
Environmental sounds
Higher-order auditory rule establishment
Sound familiarity
Abstract
This study addressed the extraction of long-term sound familiarity as a higher-order feature of complex, environmental sounds. Physically variable, familiar animal sounds and spectrotemporally matched, unfamiliar control sounds were presented. Participants ignored the acoustic stimuli. Infrequent deviant sounds violated the familiarity status established by the standard sounds, but no regularity on the basis of physical features. In the auditory event-related potential, deviants elicited a negative-going deflection over parietal scalp areas around 230 ms. This effect occurred for familiar deviants among unfamiliar standards and for unfamiliar deviants among familiar standards. The results indicate the establishment of an auditory regularity based on sound familiarity. This reflects the extraction of sound familiarity outside the focus of attention.
Version
Published version
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Metadata only access