A Statistical Test for Evaluating the Event-Related Synchronization/Desynchronization and its Potential use in Brain-Computer-Interfaces

Antonio Fernando Catelli Infantosi,A M F L Miranda De Sá

doi:10.1007/978-3-540-74471-9_260

A Statistical Test for Evaluating the Event-Related Synchronization/Desynchronization and its Potential use in Brain-Computer-Interfaces

Antonio Fernando Catelli Infantosi, A M F L Miranda De Sá

https://doi.org/10.1007/978-3-540-74471-9_260

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Publication Date: Jan 1, 2007

Citations: 6

Affiliation: Universidade Federal do Rio de Janeiro

#Intermittent Photic Stimulation #Statistical Basis + Show 8 more

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Abstract

In the present work, the sampling distribution of a commonly used index for evaluating the Event-Related Synchronization and Desynchronization (ERS/ERD) is derived, based on a direct relationship between it and a statistical test for assessing whether two sample spectra have the same theoretical spectrum. The distribution obtained is closely related to the noncentral F distribution. Based on such sampling distribution, critical values as well as confidence limits for the index may be obtained and hence ERS/ERD can now 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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