Wiebe, Peter:

Biosignale für die Kommunikation bei Mensch-Maschine-Systemen

(2003), 90 S.
Dissertation / Fach: Elektrotechnik
Duisburg, Essen, Univ., Diss., 2003
This thesis analyzes in what respect human biosignals are suitable for communication among man and machine. An exemplary communication system is presented which provides the operation of a computer mouse by electro-oculographical signals (EOG) and head movements of the user. Special eyeglasses with integrated electrodes, amplifiers and acceleration sensors measure the biosignals and transfer them to computer-aided signal processing. In order to discuss here the relationship between 'biosignals' and 'information' it is necessary to define precisely these central quantities of man-machine communication. The applied information model with its five hierarchical levels statistics, syntax, semantics, pragmatics, and apobetics*, and empirically derived laws about information achieves this goal. Therefore, only under certain conditions the energetic-material biosignals of the individual are information carriers concurrently. It is compellingly concluded from the model that information can only be transmitted if the user of the man-machine system has voluntarily influenceable biosignals. Individually dependent, many bioelectric signals (among other biosignals) fulfil this condition: EOG, EMG and EEG signals, e. g.. Therefore, they are potentially suitable for communication in various man-machine systems. The operational man-machine system is based on the principles of the above information model and so exemplarily confirms the general statements. Obviously, biological signals for realistic man-machine communication must generally correspond to this information model. Keywords: biosignal, communication, man-machine System, information, EOG signal, head movement, computer mouse
(* Derived from Greek 'apobeinon' = result, success, conclusion).