Description : Prabhu, one of the children with Cerebral Palsy tries to do simple math with an abacus, at the Parents Association of Persons with Cerebral Palsy and Associated Disorders (PAPCP). He is mostly at peace with himself and is very friendly. Bangalore, India. January 21, 2009. One of a set of images from the photo story Cerebral Palsy, by Ayush Ranka.