Takashi Shuji
Takashi Shuji (b.1974) lives with his family and supports himself working as a sewing machine operator. He also creates art which is featured in museum and private collections around the world. Shuji, who has Down’s Syndrome draws still lives of ordinary objects and also animals from illustration books.
He uses an additive/subtractive technique in which he studies his subject intently and lays down large areas of pastel on cardboard or paper and then erases and adds to the drawing until he is satisfied with the results.
He is featured in the current Raw Vision magazine, along with Mr Obata. Take a look
http://www.rawvision.com/articles/72/shuji/shuji.html
http://www.rawvision.com/articles/72/obata/obata.html