title: Studentized continuous wavelet transform (t-CWT) in the analysis of individual ERPs: real and simulated EEG data.
abstract: This study aimed at evaluating the performance of the Studentized Continuous Wavelet Transform (t-CWT) as a method for the extraction and assessment of event-related brain potentials (ERP) in data from a single subject. Sensitivity, specificity, positive (PPV) and negative predictive values (NPV) of the t-CWT were assessed and compared to a variety of competing procedures using simulated EEG data at six low signal-to-noise ratios. Results show that the t-CWT combines high sensitivity and specificity with favorable PPV and NPV. Applying the t-CWT to authentic EEG data obtained from 14 healthy participants confirmed its high sensitivity. The t-CWT may thus be well suited for the assessment of weak ERPs in single-subject settings.
authors.affiliation: Department of Psychology I, Institute of Psychology, University of Würzburg Würzburg, Germany.
authors.forename: Ruben G L
authors.initials: RG
authors.lastname: Real
authors.affiliation: Institute for Medical Psychology and Behavioural Neurobiology, University of Tübingen Tübingen, Germany.
authors.forename: Boris
authors.initials: B
authors.lastname: Kotchoubey
authors.affiliation: Department of Psychology I, Institute of Psychology, University of Würzburg Würzburg, Germany.
authors.forename: Andrea
authors.initials: A
authors.lastname: Kübler
keywords: EEG; ERP; detection; electroencephalogram; significance; t-CWT; wavelet