Sensory Perception

[jonb]

The reason why I asked was I have a little pet thought, that many differences that are commonly called disabilities are not so much disabilities but genetic differences that are useful to the group. For instance I am strongly dyslexic and left handed, when I used to work in graphic design a good 70% of artists were left-handed, and commonly they had difficulties with spelling. Now although I have difficulty with linear patterns like those in writing, I have stronger than average abilities in noticing patterns in two and three dimensional space and this I have found common among the dyslexics I know. It occurred to me that the most common form of colour blindness is a shortage of blue receptors so is there compensating factor among some people with difficulties in colour perception that they might have more than average the amount of low light receptors? Sorry I have to stop now there is something unpleasant in my shoe.