Fig. 2.
Three PERG (black lines) and VEP (gray lines) waveforms recorded from one eye of a rhesus macaque, using a 2 Hz alternating 8 × 8 (6°19′) checkerboard, which had a luminance of 150 cd/s2 and a contrast approaching 100%. The PERG, VEP pairs having the same line type were simultaneously recorded