DTF
Determination of EEG propagation in brain
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| Simultation scheme
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In order to test the properties of DTF the series of simulations were performed. As an input signal (channel 1) the artifact free epoch from P3 electrode was chosen. The signal was band pass filtered in 4 - 45 Hz range and normalized (mean = 0, variance = 1). The propagations were simulated by applying different delays to the signal 1 and adding noise series. Click here to expand |
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The simulated signals can be represented by: X 1(t)=EEG(t)+e1(t)
X2(t)=A1X1(t-d1)+e2(t) ... Xn(t)=AnX1(t-dn)+en(t) Where
t - time EEG(t) - filtered and normalized EEG signal from P3 electrode Xn(t) - signal in n-th channel en(t) - noise in n-th channel dn - delay in n-th channel An - weight of the connection between 1-st and n-th channels |
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