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Cross-Modal Multivariate Pattern Analysis
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Global shape perception contributes to crossmodal correspondences.

Yi-Chuan Chen1, Pi-Chun Huang2, Charles Spence3

  • 1Department of Medicine, Mackay Medical College.

Journal of Experimental Psychology. Human Perception and Performance
|January 25, 2021
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Summary
This summary is machine-generated.

The Bouba/Kiki effect, a sound-shape link, may arise from global contour perception, not just local features. This study shows shape perception influences sound-shape correspondences.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception

Background:

  • The Bouba/Kiki effect demonstrates a sound-shape correspondence, linking non-words to visual patterns.
  • Previous research attributed this effect to local shape features (rounded vs. angular).
  • This study explores the role of global contour processing in the Bouba/Kiki effect.

Purpose of the Study:

  • To investigate whether the Bouba/Kiki effect is driven by global contour information rather than local features.
  • To examine the influence of perceptual grouping on sound-shape correspondences.

Main Methods:

  • Utilized compound radial frequency (RF) patterns segmented into convexities and concavities.
  • Manipulated perceptual grouping by altering segment length and orientation.
  • Assessed matching judgments to evaluate the Bouba/Kiki effect.

Main Results:

  • Perceptual grouping of convexities was more efficient than concavities when facilitated.
  • Matching consensus for convexities was higher in original orientations compared to reversed.
  • The Bouba/Kiki effect was sensitive to factors influencing global contour formation.

Conclusions:

  • The Bouba/Kiki effect appears to be influenced by global shape perception.
  • Sound-shape correspondences may operate at multiple levels of visual information processing.
  • Findings advance understanding of crossmodal correspondences, their development, neural basis, and applications.