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  Age-related dissociation of sensory and decision-based auditory motion processing

Ludwig, A. A., Rübsamen, R., Dörrscheidt, G. J., & Kotz, S. A. (2012). Age-related dissociation of sensory and decision-based auditory motion processing. Frontiers in Human Neuroscience, 6: 64. doi:10.3389/fnhum.2012.00064.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-B88B-B Version Permalink: http://hdl.handle.net/21.11116/0000-0003-CFA8-7
Genre: Journal Article

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 Creators:
Ludwig, Alexandra A.1, 2, Author
Rübsamen, Rudolf1, Author
Dörrscheidt, Gerd J.3, Author
Kotz, Sonja A.4, Author              
Affiliations:
1Faculty of Biosciences, Pharmacy and Psychology, University of Leipzig, Germany, ou_persistent22              
2Section of Phoniatrics and Audiology, Department of Otorhinolaryngology, University of Leipzig, Germany, ou_persistent22              
3Mühle, Tiefurt, Weimar-Tiefurt, Germany, ou_persistent22              
4Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              

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Free keywords: Development; Auditory motion processing; Event-related brain potentials; MMN
 Abstract: Studies on the maturation of auditory motion processing in children have yielded inconsistent reports. The present study combines subjective and objective measurements to investigate how the auditory perceptual abilities of children change during development and whether these changes are paralleled by changes in the event-related brain potential (ERP). We employed the mismatch negativity (MMN) to determine maturational changes in the discrimination of interaural time differences (ITDs) that generate lateralized moving auditory percepts. MMNs were elicited in children, teenagers, and adults, using a small and a large ITD at stimulus offset with respect to each subject's discrimination threshold. In adults and teenagers large deviants elicited prominent MMNs, whereas small deviants at the behavioral threshold elicited only a marginal or no MMN. In contrast, pronounced MMNs for both deviant sizes were found in children. Behaviorally, however, most of the children showed higher discrimination thresholds than teens and adults. Although automatic ITD detection is functional, active discrimination is still limited in children. The lack of MMN deviance dependency in children suggests that unlike in teenagers and adults, neural signatures of automatic auditory motion processing do not mirror discrimination abilities. The study critically accounts for advanced understanding of children's central auditory development.

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Language(s): eng - English
 Dates: 2011-10-212012-03-122012-03-27
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.3389/fnhum.2012.00064
PMID: 22470331
PMC: PMC3313480
Other: eCollection 2012
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Title: Frontiers in Human Neuroscience
  Abbreviation : Front Hum Neurosci
Source Genre: Journal
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Publ. Info: Lausanne, Switzerland : Frontiers Research Foundation
Pages: - Volume / Issue: 6 Sequence Number: 64 Start / End Page: - Identifier: ISSN: 1662-5161
CoNE: /journals/resource/1662-5161