Relation between the EPSP and the Learning Window

<p>The power spectrum is the Fourier transform of the effective learning window <i>W</i><sub>0</sub>, which in turn is the convolution of the learning window <i>W</i> and the EPSP <i>ε</i>. The figure shows the learning windows required for SFA for three different EPSP durations (<i>τ</i> = 4, 40, 400 ms). The maximal input frequency <i>ν</i><sub>max</sub> was 1 / (40 ms) in all plots. </p>

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