Figure 1.

(A) Waveforms of PERG_tr (first row) and PERG_SS (second row) from one subject (S01) recorded at 2.2 and 17.4 rps, respectively. The tr peak names (N35, P50, and N95) and SS peaks (N_SS and P_SS) are labeled as shown. (B) Diagram depicting the superposition generation of PERG_SS, v(t) at 17.4 rps using temporally shifted PERG_tr waveforms, a(t). The isochronic stimulus sequence s(t) is depicted by the trigger signals below the alternating bars. To generate the synthetic PERG_SS, tr waveform a(t) is shifted in a cyclic mode eight times according to the trigger signal s(t), and the resulting waveforms are averaged to produce v(t), the synthetic waveform synPERG_SS. System noise is represented by n(t).