A VEP study on visual processing of figural geometry.
The possibility of a link between medial axes (hereafter called symmetries) and figure salience has recently been proposed [Vision Res. 38 (1998) 2323; Vision Res. 38 (1998) 2429]. In this paper we investigated the characteristics of transient visual evoked potentials (VEPs) associated with stimulus figures designed to have different symmetries. Significant trends were observed for VEP components N1 (160-190 ms) and P2 (220-250 ms). N1 and P2 had shorter peak latencies for stimuli with greater symmetry peak amplitudes.
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