For 95.6% of the people reading this, every word in this article excluding hyperlinks will appear black. The remaining 4.4% will have a different experience altogether. Perhaps the M’s will appear orange, while the A’s take on a violet hue. These individuals have a condition known as synesthesia, which is a tangling of sensory input. While interpreting letters or numbers as color is the most common manifestation of this phenomenon, certain people may believe that reading certain words “tastes” a certain way, while others “hear” music when eating certain foods. For example, the word “pen” might taste like chocolate, while eating toast could sound like piano music.

read more Brain Training Can Teach Synesthesia-Like Perception | IFLScience.