EEG data acquisition and preprocessing by microcomputer satellite system

✍ Scribed by G Dumermuth; R Dinkelmann

• Publisher: Elsevier Science
• Year: 1979
• Weight: 738 KB
• Volume: 10
• Category: Article
• ISSN: 0010-468X
• DOI: 10.1016/0010-468x(79)90069-2

✦ Synopsis

Recent development in computer technology allows already medium scale EEG data processing to be performed within the clinical neurophysiology department, if a fast minicomputer with adequate mass storage and graphical output facilities is used. Data acquisition, however, should be delegated to a microcomputer which also should take over as much preprocessing as possible. A system is presented, where one or several microcomputer-based satellite units perform analog-digital conversion, Fourier transformation (FFT), calculation of power spectra and crossproducts, as well as event related averaging or other preprocessing procedures. The units are connected to a fast central minicomputer, where a supervisor program loads the microprocessors with their programs, supervises their activity, receives preprocessed data and activates appropriate postprocessing programs to produce the final results.