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Mathematical Modelling and Data Analysis

Department 8.4

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Title: A template-free approach for determining the latency of single events of auditory evoked M100
Author(s): M. Burghoff, A. Link, A. Salajegheh, C. Elster, D. Poeppel and L. Trahms
Journal: Physics in medicine and biology
Year: 2005
Volume: 50
Issue: 3
Pages: N43--8
DOI: 10.1088/0031-9155/50/3/N04
ISSN: 0031-9155
Web URL: http://www.ncbi.nlm.nih.gov/pubmed/15773733
Keywords: Evoked Potentials, Auditory,Magnetoencephalography,Magnetoencephalography: methods,Models, Theoretical,Normal Distribution,Time Factors
Tags: 8.42, Gehirn
Abstract: The phase of the complex output of a narrow band Gaussian filter is taken to define the latency of the auditory evoked response M100 recorded by magnetoencephalography. It is demonstrated that this definition is consistent with the conventional peak latency. Moreover, it provides a tool for reducing the number of averages needed for a reliable estimation of the latency. Single-event latencies obtained by this procedure can be used to improve the signal quality of the conventional average by latency adjusted averaging.

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