Studies of MLR Wave Form by Synthetic Wave of Half Cycle Sinusoid

The MLR components were approximated by half cycle sinusoids. The synthetic and original MLR were passed through the filters with various slope and pass-band, and compared with each other. The effect of filters on latency and amplitude of the original and synthetic wave were almost the same between them. However, some portion of MLR wave showed a little difference between original and synthetic wave. When MLRs passed through the filters with steeper slope and higher frequency at low-frequency cutoff, this difference moved to the later components.The effects of filter were studied on single half cycle sinusoid of 10 to 100Hz. The filters with 6dB/oct slope showed little change in the wave form of sinusoid, but marked wave form distortion was observed in those sinusoid passed through the filters with 36dB/oct or more steeper slope, and 10Hz or higher at low-frequency cutoff. Damped oscillation were observed, and their effects ranged to 3 or 4 later components.