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Color-Grapheme Synesthesia: A Study Of Population Prevalence, Christopher Hill

Dissertations, 2014-2019

Given the current state of the literature and weaknesses of many previous prevalence studies, the primary purpose of this research study was to gather base-rate data of color-grapheme synesthesia in a general population sample. Over a period of seven months, 502 participants enrolled in the study on Mechanical Turk and completed the online Synesthesia Battery. The primary data collected was the participant’s score on the synesthesia test, whereby a score of a one or below is deemed by the battery to be indicative of someone with a color-grapheme synesthetic ability. Of the 502 participants, eight percent (0.082) of the population …