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Biomedical Engineering / Biomedizinische Technik

Editor-in-Chief: Dössel, Olaf

Editorial Board Member: Augat, Peter / Gehring, Hartmut / Haueisen, Jens / Jockenhoevel, Stefan / Kraft, Marc / Leonhardt, Steffen / Niederlag, Wolfgang / Plank, Gernot / Radermacher, Klaus M. / Schkommodau, Erik / Schmitz, Georg / Stieglitz, Thomas / Witte, Herbert / Boenick, Ulrich / Lenthe, Harry / Penzel, Thomas / Clasbrummel, Bernhard / Robitzki, Andrea A. / Snedeker, Jess G. / Wintermantel, Erich / Werner, Jürgen

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Volume 57 (2012)

Wavelet-based analysis of MMN responses in children

Martin Burger1 / Ulrich Hoppe2 / Peter Kummer3 / Jörg Lohscheller4 / Ulrich Eysholdt5 / Michael Döllinger6

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Corresponding author: Martin Burger, Department of Phoniatrics and Pediatric Audiology, University Hospital Erlangen, Bohlenplatz 21, 91054 Erlangen, Germany Phone: +49-9131-8532602 Fax: +49-9131-8532687

Citation Information: Biomedizinische Technik. Volume 52, Issue 1, Pages 111–116, ISSN (Online) 1862-278X, ISSN (Print) 0013-5585, DOI: 10.1515/BMT.2007.021, February 2007

Publication History

Published Online:
2007-02-22

Abstract

Event-related potentials (ERPs) as part of the EEG are applied to assess auditory processing in children. Mismatch negativity (MMN) is a change-specific component of ERPs that indicates a pre-cognitive discrimination process. MMN responses were recorded in 10 healthy preschool children to four different types of signal changes. The signals investigated were processed using a discrete wavelet transform (DWT) to analyze the characteristics of the ERP components. All children showed distinct MMN that was significant in all tasks. The MMN amplitudes varied between subjects and depended on the different tasks. The wavelet transform allowed simplified analysis and quantification of the MMN component, as well as the double-peak structure of the P1 component. The variation in MMN amplitudes suggests the possibility of determining individual auditory profiles. Owing to the shorter time required, the MMN paradigm suggested combined with the DWT proposed offers a new objective investigation method for children.

Keywords: auditory processing; discrete wavelet transform; event-related potentials; mismatch negativity

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