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Evaluating the event-related synchronization and desynchronization by means of a statistical frequency test
Antonio Mauricio F L Miranda de Sá1, Antonio Fernando C Infantosi, Vladimir V Lazarev
1Biomedical Engineering Program, Federal University of Rio de Janeiro, PO Box 68510, ZIP 21941-972, Rio de Janeiro, Brazil. amflms@peb.ufrj.br
Abstract:
In the present work, a commonly used index for evaluating the Event-Related Synchronization and Desynchronization (ERS/ERD) in the EEG was expressed as a function of the Spectral F-Test (SFT), which is a statistical test for assessing if two sample spectra are from populations with identical theoretical spectra. The sampling distribution of SFT has been derived, allowing hence ERS/ERD to be evaluated under a statistical basis. An example of the technique was also provided in the EEG signals from 10 normal subjects during intermittent photic stimulation.
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