Exploring the relationship between grapheme colour-picking consistency and mental imagery

Article

Spiller, M., Harkry, Lee, McCullagh, Fintan, Thoma, V. and Jonas, C. 2019. Exploring the relationship between grapheme colour-picking consistency and mental imagery. Philosophical Transactions B: Biological Sciences. 374 (Art. 20190023). https://doi.org/10.1098/rstb.2019.0023
AuthorsSpiller, M., Harkry, Lee, McCullagh, Fintan, Thoma, V. and Jonas, C.
Abstract

Previous research has indicated a potential link between mental imagery and synaesthesia. However, these findings are mainly based on imagery self-report measures and recruitment of self-selected synaesthetes. To avoid issues of self-selection and demand effects we recruited participants from the general population, rather than synaesthetes specifically, and used colour-picking consistency tests for letters and numbers to assess a "synaesthete-like" experience. Mental imagery ability and mental rotation ability were assessed using both self-report measures and behavioural assessments. Consistency in colour-picking for letters (but not numbers) was predicted by performance on the visual mental imagery task, but not by a mental rotation task or self-report measures. Using the consistency score as a proxy measure of grapheme-colour synaesthesia, we provide more evidence for the suggestion that synaesthetic experience is associated with enhanced mental imagery, even when participants are naïve to the research topic.

JournalPhilosophical Transactions B: Biological Sciences
Journal citation374 (Art. 20190023)
ISSN0962-8436
Year2019
PublisherThe Royal Society
Accepted author manuscript
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Digital Object Identifier (DOI)https://doi.org/10.1098/rstb.2019.0023
Web address (URL)https://doi.org/10.1098/rstb.2019.0023
Publication dates
Online21 Oct 2019
Publication process dates
Deposited15 May 2019
Accepted13 May 2019
Accepted13 May 2019
Copyright holder© 2019 The Authors
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