Synaesthesia research

Links and downloads



  • RGB converter (matlab file): Can be used to convert colour representations in RGB space to colour representations in CIELUV space.

    For detailed information see: Rothen, N., Seth, A. K., Witzel, C., & Ward, J. (2013). Diagnosing synaesthesia with online colour pickers: Maximising sensitivity and specificity. Journal of Neuroscience Methods, 215(1), 156–160.
  • Coloured Letters and Numbers (English version and German version): final 16 item version of questionnaire including scoring information

    For detailed information see: Rothen, N., Tsakanikos, E., Meier, B., & Ward, J. (2013). Coloured Letters and Numbers (CLaN): A reliable factor-analysis based synaesthesia questionnaire. Consciousness and Cognition, 22(3), 1047–1060.



Lectures and talks by Sussex researchers about synaesthesia:

Interviews with Sussex researchers about synaesthesia:

Animated Documentary about Synaesthesia produced by Samantha Moore and featuring Sussex researchers

Synaesthesia Associations

UK Synaesthesia Association

American Synesthesia Association (ASA)

International Synaesthesia Association (ISA) Australian Branch

E-mail Discussion List

Sean Day, president of the American Synaesthesia Association, organises an e-mail discussion list for synaesthetes themselves and for those with an interest in the topic. To join the list you should contact him directly (