Document Detail

Frequency correlates in grapheme-color synaesthesia.
MedLine Citation:
PMID:  17760774     Owner:  NLM     Status:  MEDLINE    
Individuals with synaesthesia experience certain stimuli in more than one sensory modality. Most common is the linkage of letters and digits (graphemes) to colors. Whereas synaesthesia might be partly genetically determined, the linkages to specific colors are assumed to be learned. We present a systematic statistical analysis of synaesthetic color perception based on subjects' reproduction of individual colors for each grapheme, instead of simple verbal categorizations. The statistical analysis revealed that the color perceptions, measured with the HSL (hue, saturation, and luminance) scale, varied systematically among the different digits and letters. The frequencies of the digits and letters (in the German language) partly explained these systematic variations. However, digit frequency was more strongly related to color perception in the synaesthetes than was letter frequency. The results for digit and letter frequency indicate that experience with graphemes may shape synaesthetic color perception.
Gian Beeli; Michaela Esslen; Lutz Jäncke
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Psychological science     Volume:  18     ISSN:  0956-7976     ISO Abbreviation:  Psychol Sci     Publication Date:  2007 Sep 
Date Detail:
Created Date:  2007-08-31     Completed Date:  2007-11-30     Revised Date:  2011-05-20    
Medline Journal Info:
Nlm Unique ID:  9007542     Medline TA:  Psychol Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  788-92     Citation Subset:  IM    
University of Zurich, Zurich, Switzerland.
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MeSH Terms
Analysis of Variance
Auditory Perception*
Color Perception*
Discrimination (Psychology)
Reference Values
Verbal Behavior
Comment In:
Psychol Sci. 2007 Sep;18(9):793-5   [PMID:  17760775 ]
Psychol Sci. 2008 Apr;19(4):412-4   [PMID:  18399896 ]

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