A COMPARISON OF SYMMETRY SALIENCE IN COMPUTER VS DESIGN-EXPERT GENERATED DOT PATTERNS

  • Atsuya Shinba
  • Taichi Sayama
  • Yoshito Nakano
  • Gert J. van Tonder
  • Yoshio Ohtani

Abstract

To examine how spatial configuration of stimulus elements affects symmetry perception, reaction times (RTs) to dot-patterns with different spatial configurations are measured in two experiments. In the first experiment, RTs for symmetry detection were measured for a total of 640 computer-generated dot patterns with a ‘go/no-go’ task. Based on the RT data, 2 sets of 20 patterns were determined which yielded shorter and longer RTs. Inspection of the spatial configurations in these dot patterns suggested that the two sets differ with respect to ‘continuity’, ‘closure’ and other attributes of the dot elements. In the second experiment, RTs to computer-generated patterns and those generated by a design-expert are compared, to investigate additional factors contributing to perceptual salience of pattern symmetry.

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