Perception & Psychophysics

, Volume 7, Issue 3, pp 179–184 | Cite as

Susceptibility to geometrical illusions according to culture and professional training

  • Gustav Jahoda
  • Barrie Stacey


This paper reports a cross-cultural investigation of susceptibility to geometrical illusions based upon student samples in Ghana and Scotland. The results indicate that: (1)cultural differences in susceptibility to illusions can be found among Ss exposed to lengthy formal education of a similar type; (2) the perceptual consequences of professional training in art and architecture tend to be moderate within a culture; but (3) the combined outcome of training across cultures tends to reduce cultural differences in susceptibility to illusions. They also raise a problem concerning the supposed positive relationship between field dependence and susceptibility to illusions. Some implications of these results are considered.


Professional Training Visual Illusion Poggendorff Illusion Illusion Magnitude Illusion Effect 
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Copyright information

© Psychonomic Society, Inc. 1970

Authors and Affiliations

  • Gustav Jahoda
    • 1
  • Barrie Stacey
    • 1
  1. 1.Department of PsychologyUniversity of StrathclydeGlasgowScotland

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