A new mode of communication between man and his surroundings

The feasibility of establishing an alternative mode of communication between man and his surroundings was studied. The form of communication proposed uses only the subject´s brain waves, with no overt physical action required. The subject´s electroencephalograms (EEG) were recorded while various mental tasks designed to elicit hemispheric responses were performed. Features formed from the EEG recording were then used as inputs into a Bayes quadratic classifier to test classification accuracy between the various tasks. The results obtained indicate that it is possible to accurately distinguish between any two of the five tasks investigated. A comparison between three different methods for creating the feature sets is also presented.