Coloured Letters and Numbers (CLaN): A reliable factor-analysis based synaesthesia questionnaire

Rothen, Nicolas; Tsakanikos, Elias; Meier, Beat; Ward, Jamie (2013). Coloured Letters and Numbers (CLaN): A reliable factor-analysis based synaesthesia questionnaire. Consciousness and cognition, 22(3), pp. 1047-1060. Elsevier 10.1016/j.concog.2013.07.005

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Synaesthesia is a heterogeneous phenomenon, even when considering one particular sub-type. The purpose of this study was to design a reliable and valid questionnaire for grapheme-colour synaesthesia that captures this heterogeneity. By the means of a large sample of 628 synaesthetes and a factor analysis, we created the Coloured Letters and Numbers (CLaN) questionnaire with 16 items loading on 4 different factors (i.e., localisation, automaticity/attention, deliberate use, and longitudinal changes). These factors were externally validated with tests which are widely used in the field of synaesthesia research. The questionnaire showed good test–retest reliability and construct validity (i.e., internally and externally). Our findings are discussed in the light of current theories and new ideas in synaesthesia research. More generally, the questionnaire is a useful tool which can be widely used in synaesthesia research to reveal the influence of individual differences on various performance measures and will be useful in generating new hypotheses.

Item Type: Journal Article (Original Article)
Division/Institute: 07 Faculty of Human Sciences > Institute of Psychology > Experimental Psychology and Neuropsychology
07 Faculty of Human Sciences > Institute of Psychology > Social Psychology and Social Neuroscience
10 Strategic Research Centers > Center for Cognition, Learning and Memory (CCLM)
UniBE Contributor: Rothen, Nicolas and Meier, Beat
Subjects: 100 Philosophy > 150 Psychology
600 Technology > 610 Medicine & health
300 Social sciences, sociology & anthropology
ISSN: 1053-8100
Publisher: Elsevier
Language: English
Submitter: Anna Maria Ruprecht
Date Deposited: 29 Sep 2014 11:43
Last Modified: 21 Oct 2015 10:40
Publisher DOI: 10.1016/j.concog.2013.07.005
PubMed ID: 23938277
BORIS DOI: 10.7892/boris.54147
URI: http://boris.unibe.ch/id/eprint/54147

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