For more details,
see:
Fuchs A., Friedrich R., Haken H., Lehmann D.: `Spatio-Temporal Analysis of
Multichannel alpha-EEG Map Series', in: Computational Systems -- Natural
and Artificial, H. Haken, ed., Springer, Berlin (1987)
Friedrich R., Fuchs A., Haken H.: `Spatio-Temporal EEG Patterns', in: Rhythms
in Physiological Systems, H. Haken, H.P. Koepchen, eds., Springer, Berlin
(1991)
EEG recorded with many electrodes leads to patterns of the electric potential on the scalp which are coherent in space i.e. there are only one or two maxima and minima over the entire array of electrodes. The dynamics of these patterns show complex behavior in time.
The data shown here was recorded using 16 electrodes over the occipital region for the case of alpha-EEG and 25 electrodes for epileptic-EEG. In both cases the entire spatiotemporal dynamics can be reconstructed as a superposition of only a few spatial patterns and their corresponding amplitudes in time. The MPEG-movies show these relevant patterns (5 in the case of alpha-EEG and 3 for the epileptic-EEG) and the time series of the amplitudes together with the actual spatiotemporal pattern of neural electric activity.
