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Abstract Title:

The prevalence and cognitive profile of sequence-space synaesthesia.

Abstract Source:

Conscious Cogn. 2018 May ;61:79-93. Epub 2018 Apr 16. PMID: 29673773

Abstract Author(s):

Jamie Ward, Alberta Ipser, Eva Phanvanova, Paris Brown, Iris Bunte, Julia Simner

Article Affiliation:

Jamie Ward

Abstract:

People with sequence-space synaesthesia visualize sequential concepts such as numbers and time as an ordered pattern extending through space. Unlike other types of synaesthesia, there is no generally agreed objective method for diagnosing this variant or separating it from potentially related aspects of cognition. We use a recently-developed spatial consistency test together with a novel questionnaire on naïve samples and estimate the prevalence of sequence-space synaesthesia to be around 8.1% (Study 1) to 12.8% (Study 2). We validate our test by showing that participants classified as having sequence-space synaesthesia perform differently on lab-based tasks. They show a spatial Stroop-like interference response, they show enhanced detection of low visibility Gabor stimuli, they report more use of visual imagery, and improved memory for certain types of public events. We suggest that sequence-space synaesthesia develops from a particular neurocognitive profile linked both to greater visual imagery and enhanced visual perception.

Study Type : Human Study
Additional Links
Additional Keywords : Synesthesia : CK(20) : AC(2)

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