A VEP study on visual processing of figural geometry

Vision Res. 2001 Dec;41(28):3791-803. doi: 10.1016/s0042-6989(01)00239-5.

Abstract

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.

MeSH terms

  • Adult
  • Analysis of Variance
  • Evoked Potentials, Visual*
  • Form Perception / physiology*
  • Humans
  • Mathematics*
  • Visual Pathways / physiology*