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Discrimination between phase-locked and non-phase-locked event-related EEG activity.

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1
Department of Medical Informatics, Graz University of Technology, Austria.

Abstract

Differentiation between phase-locked and non-phase-locked event-related EEG activity is an important task in the evaluation of event-related EEG activity. Event-related changes of EEG activity such as event-related desynchronization (ERD) or event-related synchronization (ERS) can be quantified by either instantaneous band power or intertrial variance calculations. In the former case the ERD or ERS can be masked by an event-related potential while in the latter it is not. Examples from sensory stimulation and movement experiments, where the ERD (ERS) is calculated by both methods, are shown and discussed.

PMID:
7774524
[Indexed for MEDLINE]
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