This neurological phenomenon occurs when a stimulation of one sensory leads to an involuntary stimulation of another sensory. In sound → color synesthesia, individuals experience colors in response to tones or other aspects of sounds. There are two type of synesthesia in this category, which are called "narrow band" and "broad band" sound → color synesthesia. In narrow band sound → color synesthesia musical stimuli will elicit specific color experiences, such that a particular note will always elicit red, or harps will always elicit the experience of seeing a golden color. In broadband sound → color synesthesia, on the other hand, a variety of environmental sounds, like an alarm clock or a door closing, may also elicit visual experiences.
Color changes in response to different aspects of sound stimuli may involve more than just the hue of the color. Any dimension of color experience can vary. Brightness, saturation and hue may all be affected to varying degrees. Additionally, music → color synesthetes, unlike grapheme → color synesthetes, often report that the colors move, or stream into and out of their field of view. Like grapheme → color synesthesia, there is rarely agreement among music → color synesthetes that a given tone will be a certain color. However, when larger samples are studied, consistent trends can be found, such that higher pitched notes are experienced as being more brightly colored.
I have NEVER heard of this condition until I read that Ida Maria, a Norwegian artist, had this condition...I wonder what it is like to hear music and have an array of colors swim before your eyes. Hearing with your eyes...that sound fucking amazing...
[Edit] I just looked up 'visual music,' and apparently this is somewhat close to the experience they feel when they hear music...that's beyond words....
LN LU
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