I have a sister who was in an automobile accident . T he car she was in was hit by a drunk driver . She sustained a traumatic head injury . She developed a brain bleed . And during the surgery to correctt the brain bleed she suffered a stroke . Her right side was severely affected and she had almost no use of her right arm and hand . She has always love her PS 3 so we started using the PS 3 controller to help her get the use of hr arm and hand back . After a couple of months of using the controller she had 98% of the use of he hand and arm back . And today 2 1/2 years later she still has some problems but she has full use of her arm and hand thanks to the PS 3 .