Abstract
The effects of the presence of corners, angles, and line orientation in the P1-N2 components of visual evoked responses (VER) were studied. Results showed that the presence of a corner within a stimulus pattern was the most important variable affecting VER amplitudes. VERs evoked by stimuli containing at least one corner were of significantly greater amplitude than those evoked by stimuli containing no corners. The size of the angle also exerted a significant effect, with 90° angles producing largest amplitudes. These results were discussed with regard to previous findings.