A novel method for automated classification of the human Electroencephalogram 
based on Independent Component Analysis

De Lucia, M; Fritschy, J; Dayan, P; Holder, DS

doi:10.1007/s11517-007-0289-4

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A novel method for automated classification of the human Electroencephalogram based on Independent Component Analysis

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De Lucia, M., Fritschy, J., Dayan, P., & Holder, D. (2008). A novel method for automated classification of the human Electroencephalogram based on Independent Component Analysis. Medical & Biological Engineering & Computing., 46(3), 263-272. doi:10.1007/s11517-007-0289-4.

Cite as: https://hdl.handle.net/21.11116/0000-0002-CBAE-6

Abstract

Diagnosis of several neurological disorders is based on the detection of typical pathological patterns in the electroencephalogram (EEG). This is a time-consuming task requiring significant training and experience. Automatic detection of these EEG patterns would greatly assist in quantitative analysis and interpretation. We present a method, which allows automatic detection of epileptiform events and discrimination of them from eye blinks, and is based on features derived using a novel application of independent component analysis. The algorithm was trained and cross validated using seven EEGs with epileptiform activity. For epileptiform events with compensation for eyeblinks, the sensitivity was 65 +/- 22% at a specificity of 86 +/- 7% (mean +/- SD). With feature extraction by PCA or classification of raw data, specificity reduced to 76 and 74%, respectively, for the same sensitivity. On exactly the same data, the commercially available software Reveal had a maximum sensitivity of 30% and concurrent specificity of 77%. Our algorithm performed well at detecting epileptiform events in this preliminary test and offers a flexible tool that is intended to be generalized to the simultaneous classification of many waveforms in the EEG.