Title :
Evaluating the Event-Related Synchronization and Desynchronization by means of a Statistical Frequency Test
Author :
Miranda de Sa, A.M.F. ; Infantosi, A.F.C. ; Lazarev, V.V.
Author_Institution :
Fed. Univ. of Rio de Janeiro, Rio de Janeiro
Abstract :
In the present work, a commonly used index for evaluating the Event-Related Synchronization and Desynchronization (ERS/ERD) in the EEGwas 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.
Keywords :
bioelectric phenomena; electroencephalography; neurophysiology; spectral analysis; statistical testing; synchronisation; EEG signals; event-related desynchronization; event-related synchronization; intermittent photic stimulation; sampling distribution; spectral F-test; statistical frequency test; Band pass filters; Biomedical engineering; Electroencephalography; Electronic mail; Filtering; Frequency estimation; Frequency synchronization; Phase estimation; Sampling methods; Testing; Alpha Rhythm; Cortical Synchronization; Electroencephalography; Equipment Design; Evoked Potentials, Auditory; Fourier Analysis; Humans; Light; Models, Statistical; Normal Distribution; Photic Stimulation; Reproducibility of Results;
Conference_Titel :
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Conference_Location :
Lyon
Print_ISBN :
978-1-4244-0787-3
DOI :
10.1109/IEMBS.2007.4352829
