Present state of development of neo-electroencephalography.
Neo-electroencephalography (neo-EEG) is a new technique for recording and analyzing brain activity. Mathematical and computerized reconstitution yields a monopolar-like montage. Given the polymorphism of the brain's electrical activity, the computer detects the correct monopolar-like montage for each activity in steps of 0.25 Hz. Conventional EEG detects the difference in potentials between two electrodes. Through the use of monopolar-like montages neo-EEG analysis reveals the amplitude and phase that actually underlie each electrode. The report describes with precision the features of the recording extracts that have been chosen for the analysis, i.e., the number of dominant frequencies, the frequency to the nearest 0.25 Hz and the frequency spectrum for each dominant frequency, then the amplitude to the nearest 0.1 microv and phase shift to the nearest 0.001 sec at each electrode. Some examples of comparisons between neo-EEG and conventional EEG findings are shown and demonstrate the advantages of neo-EEG in detection and differentiation of organic and functional pathologies.
Sorel
L
L
University of Louvain, Belgium.
Peters
J P
JP
Leroux
D
D
Michiels
M
M
D000513:Alpha Rhythm; D001931:Brain Mapping / Q000295:instrumentation*; D002540:Cerebral Cortex / Q000502:physiology; D004292:Dominance, Cerebral / Q000502:physiology; D004566:Electrodes; D004569:Electroencephalography / Q000295:instrumentation*; D005583:Fourier Analysis; D006801:Humans; D012016:Reference Values; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*