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Training Synesthetic Letter-color Associations by Reading in Color
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Pitch-Color Associations are Context-Dependent and Driven by Lightness.

Aurore Zelazny1,2, Thomas Alrik Sørensen1,2

  • 1Centre for Cognitive Neuroscience, Department of Communication and Psychology, 1004Aalborg University, Aalborg, Denmark.

Multisensory Research
|October 30, 2025
PubMed
Summary

Pitch-color associations are relative, not absolute. Context, like ascending or descending pitch sequences, influences color choices, with lightness being the primary factor.

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Area of Science:

  • Cognitive Psychology
  • Cross-modal correspondences
  • Sensory perception

Background:

  • Pitch-color associations are widely studied in cross-modal correspondences.
  • Previous research suggests high pitches map to light colors (yellow) and low pitches to dark colors (blue).
  • The absolute versus relative nature of these associations remains unclear.

Purpose of the Study:

  • To investigate the influence of context (randomized, ascending, descending pitch order) on pitch-color associations.
  • To determine if pitch-color mappings are absolute or relative.
  • To examine the role of lightness and saturation in these associations.

Main Methods:

  • A large sample (N=6626) was presented with seven pitch stimuli (C4-B4) in different orders.
  • Participants selected colors for each pitch using a color wheel.
  • Pitch-color associations were analyzed based on presentation order and pitch height.

Main Results:

  • Pitch height linearly mapped to lightness, with higher pitches linked to lighter colors.
  • Ascending pitch sequences yielded lighter colors, descending sequences darker colors, compared to randomized presentations.
  • Saturation peaked at mid-range pitches and was not context-dependent; color associations shifted based on presentation order.

Conclusions:

  • Pitch-color associations are relative, influenced by contextual factors like pitch sequence order.
  • Lightness emerged as the primary determinant in color selection for pitches.
  • Findings suggest context-dependent sensory mappings and offer insights into cognitive processes and sensory illusions.