Synesthesia (also spelled synæsthesia or synaesthesia, plural synesthesiae or synaesthesiae)?from the Ancient Greek (syn), meaning "with," and (aisth?sis), meaning "sensation"'?is a neurologically-based phenomenon in which stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive pathway. In one common form of synesthesia, known as grapheme ? color synesthesia, letters or numbers are perceived as inherently colored, while in ordinal linguistic personification, numbers, days of the week and months of the year evoke personalities. In spatial-sequence, or number form synesthesia, numbers, months of the year, and/or days of the week elicit precise locations in space (for example, 1980 may be "farther away" than 1990), or may have a three-dimensional view of a year as a map (clockwise or counterclockwise). While cros

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