BCIs That Use Electrocorticographic Activity.

TitleBCIs That Use Electrocorticographic Activity.
Publication TypeBook Chapter
Year of Publication2012
AuthorsWolpaw, J, Winter-Wolpaw, E, Schalk, G
Book TitleBrain-Computer Interfaces: Principles and Practice
PublisherOxford University Press
ISBNISBN: 978-0195388855
Keywordsbrain signals, brain-computer interfaces, ECoG, intracortically recorded signals

This chapter discusses the potential of electrocorticography (ECoG) as a clinically useful brain-computer interface signal modality. ECoG has greater amplitude, higher topographical resolution, and a much broader frequency range than scalp-recorded electroencephalography and is less susceptible to artifacts. With current and foreseeable recording methodologies, ECoG is likely to have greater long-term stability than intracortically recorded signals. Furthermore, it can more readily be recorded from larger cortical areas, and it requires much lower digitization rates, thus greatly reducing the power requirements of wholly implanted systems.


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