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. 2013 Feb 8;6:359. doi: 10.3389/fnhum.2012.00359

Figure 9.

Figure 9

Block diagram of the fourth-order finite impulse response (FIR) filter HΔ(f ). Elements Inline graphic represent a delay of one trial, the multipliers γΔ,i compose the filter coefficients and CΔ constitutes a normalizing constant.