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Experiencing letters as colours: New insights into synaesthesia
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Experiencing letters as colours: New insights into synaesthesia

Experiencing letters as colours: New insights into synaesthesia
News

Experiencing letters as colours: New insights into synaesthesia

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Scientists studying the bizarre phenomenon of synaesthesia -- best described as a "union of the senses" whereby two or more of the five senses that are normally experienced separately are involuntarily and automatically joined together -- have made a new breakthrough in their attempts to understand the condition.


V.S. Ramachandran and Elizabeth Seckel from the University of San Diego studied four synaesthetes who experience color when seeing printed letters of the alphabet. Their aim was to determine at what point during sensory processing these 'colors' appeared.


To do this, the researchers asked their synaesthetes -- as well as a control group -- to complete three children's picture puzzles in which words were printed backwards or were not immediately visible.


When the results were processed, Ramachandran and Seckel discovered that the synaesthetes were able to complete the puzzles three times faster than the control subjects, and with fewer errors. The synaesthetes also revealed that they saw the obscured letters in the puzzles in the same color as they would the 'normal' letters. This process effectively clued them in to what the letters were, and allowed them to read the distorted words much more quickly than the controls could.


Although it was just a small study, Ramachandran and Seckel's work, published in the current issue of Neurocase, 'strongly supports the interpretation that the synaesthetic colors are evoked preconsciously early in sensory processing'. The four synaesthetes had an advantage in completing the puzzles because the 'extra' information they received when looking at the letters was then sent up to 'higher levels of sensory processing, providing additional insight for reading the distorted and backwards text': a fascinating and important insight into a condition those of us who see letters as just letters find simply baffling.


Note: Material may have been edited for length and content. For further information, please contact the cited source.

Taylor & Francis


Publication

V.S. Ramachandran, Elizabeth Seckel. Synesthetic colors induced by graphemes that have not been consciously perceived.   Neurocase, Published Online March 12 2014. doi: 10.1080/13554794.2014.890728


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