psychpost | 5/01/2012 08:06:00 AM
|Synesthesia Art. Source|
Synesthesia: A perceptual experience in which a stimuli evokes another experience. In Synesthesia these experiences are not related to neurological, psychological, or psychiatric disease. An example of Synesthesia : hearing a particular instrument causes seeing a color.
The cause of Synesthesia is not certain but there are several plausible theories which have all been backed up by research. The Cross-Activation theory suggests that there is an activation of nearby brain regions caused by excess neuronal connections.
Grapheme-Color Synesthesia: A specific type of Synesthesia in which a Grapheme (lowest unit of written language which includes: letters, numbers, punctuation) causes the experience of a color.