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The Mystery of Tetrachromacy

Sunday, December 20, 2015 10:40
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In these paintings, Australian artist Concetta Antico aims to capture her extraordinary visual experiences, which she describes as consisting of a mosaic of vibrant colours. In an interview with the BBC, Concetta reflected on the sight of a pebble pathway, which most people perceive as grey: The little stones jump out at me with oranges, yellows, greens, blues and pinks’ (1).

In 2012, a genetic analysis confirmed that Concetta’s enhanced colour vision can be explained by a genetic quirk that causes her eyes to produce four types of cone cells, instead of the regular three which underpin colour vision in most humans. Four cones give Concetta the potential for what researchers call tetrachromacy (from Greek ‘tetra’ – four, and ‘khrōma’ – colour), instead of normal trichromatic colour vision (from Greek ‘tria‘– three). This means that her eyes can enjoy a diversity of colours that is about 100 times greater than what is accessible to the rest of us.

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Source: http://soundofheart.org/galacticfreepress/content/mystery-tetrachromacy

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