Detection of symmetry and anti-symmetry

  title={Detection of symmetry and anti-symmetry},
  author={Sandra Mancini and Sharon L. Sally and Rick Gurnsey},
  journal={Vision Research},
To assess the role of second-order channels in symmetry perception we measured the effects of check size, spatial frequency content, eccentricity and grey scale range on the detection of symmetrical and anti-symmetrical patterns. Thresholds for symmetrical stimuli were only moderately affected by these manipulations. Anti-symmetrical stimuli composed of large black and white checks elicited low thresholds. However, anti-symmetry became essentially undetectable at small check sizes. Removing low… CONTINUE READING
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Mirror symmetry detection: Predominance of second-order pattern processing throughout the visual field

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