Volume 2007, Issue 1 014567
Research Article
Open Access

A Framework to Support Automated Classification and Labeling of Brain Electromagnetic Patterns

Gwen A. Frishkoff

Gwen A. Frishkoff

Learning Research and Development Center, University of Pittsburgh, Pittsburgh, PA 15260, USA pitt.edu

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Robert M. Frank

Robert M. Frank

NeuroInformatics Center, University of Oregon, 1600 Millrace Drive, Eugene, OR 97403, USA uoregon.edu

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Jiawei Rong

Jiawei Rong

Computer and Information Sciences, University of Oregon, Eugene, OR 97403, USA uoregon.edu

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Dejing Dou

Dejing Dou

Computer and Information Sciences, University of Oregon, Eugene, OR 97403, USA uoregon.edu

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Joseph Dien

Joseph Dien

Department of Psychology, University of Kansas, 1415 Jayhawk Boulevard, Lawrence, KS 66045, USA ku.edu

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Laura K. Halderman

Laura K. Halderman

Learning Research and Development Center, University of Pittsburgh, Pittsburgh, PA 15260, USA pitt.edu

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First published: 06 December 2007
Citations: 11
Academic Editor: Saied Sanei

Abstract

This paper describes a framework for automated classification and labeling of patterns in electroencephalographic (EEG) and magnetoencephalographic (MEG) data. We describe recent progress on four goals: 1) specification of rules and concepts that capture expert knowledge of event-related potentials (ERP) patterns in visual word recognition; 2) implementation of rules in an automated data processing and labeling stream; 3) data mining techniques that lead to refinement of rules; and 4) iterative steps towards system evaluation and optimization. This process combines top-down, or knowledge-driven, methods with bottom-up, or data-driven, methods. As illustrated here, these methods are complementary and can lead to development of tools for pattern classification and labeling that are robust and conceptually transparent to researchers. The present application focuses on patterns in averaged EEG (ERP) data. We also describe efforts to extend our methods to represent patterns in MEG data, as well as EM patterns in source (anatomical) space. The broader aim of this work is to design an ontology-based system to support cross-laboratory, cross-paradigm, and cross-modal integration of brain functional data. Tools developed for this project are implemented in MATLAB and are freely available on request.

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