Inproceedings: an article in a conference proceedings.
Single-trial topographic analysis of human EEG: A new image of event-related potentials
Title of the conference
6th IEEE International Special Topic Conference on Information Technology Applications in Biomedicine
Tokyo, Japan, November 8-10, 2007
We present a novel approach for analyzing single-trial electroencephalography (EEG) data, using topographic information. The method allows for visualizing event-related potentials using all the electrodes of recordings overcoming the problem of previous approaches that required electrode selection and waveforms filtering. We apply this method to EEG data from an auditory object recognition experiment that we have previously analyzed at an ERP level. Temporally structured periods were statistically identified wherein a given topography predominated without any prior information about the temporal behavior. In addition to providing novel methods for EEG analysis, the data indicate that ERPs are reliably observable at a single-trial level when examined topographically.
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