When I flick through my weekly calendar, a kaleidoscope of colour emerges in my mind. Monday is painted in plum, Tuesday takes on a lime-green tint, Wednesday appears in deep ocean blue, and at the end of the week, Sunday presents a creamy, buttery yellow.
No, I haven’t just taken a psychoactive drug. I have synaesthesia, a rare neurological trait in which the stimulation of one sense activates another, unrelated sense. For me, my perception of numbers, letters, words, and even music, are intrinsically associated with specific colours, transforming my mind’s eye into an ever-changing painter’s palette.
The word synaesthesia is derived from the Greek words “syn”, meaning together, and “aesthesis”, meaning perception. Colour associations are just one way the senses can be involuntarily cross-wired. Scientific studies have identified more…
