Computational and statistical methods for analyzing event-related potential data

Journal/Book: Behav Res Method Instrum Comp. 1998; 30: 1710 Fortview Rd, Austin, TX 78704. Psychonomic Soc Inc. 87-102.

Abstract: Some computational and statistical techniques that can be used in the analysis of event-related potential (ERP) data are demonstrated. The techniques are fairly elementary but go one step further than do simple area measurement or peak picking, which are most often used in ERP analysis. Both amplitude and latency measurement techniques are considered. Principal components analysis (PCA) and methods for electromyographic onset determination are presented in detail, and Woody filtering is discussed briefly. The techniques are introduced in a nontechnical, tutorial review style. One and the same existing data set is presented, to which the techniques are applied, and practical guidelines for their use are given. The methods are demonstrated against a background of theoretical notions that are related to the definition of ERP components.

Note: Article vanBoxtel GJM, Tilburg Univ, Dept Psychol P607, POB 90153, NL-5000 Le Tilburg, NETHERLANDS

Keyword(s): PRINCIPAL COMPONENTS; EMG ONSET; TASK; ERP

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