There are ninety-nine 'voices' which play according to different patterns on the floor. Fortunately, it's also great fun to use. The tactile wall takes up three-quarters of one wall in the light sensory room, and we are developing large ones in the main department. It comprises of materials of various textures, lights, various tactile objects and bells for noise. The background to the wall is white, with the material being in dark or bold colours, giving a very distinct change at borders.
Children can use the tactile wall to stimulate a variety of senses at the same time.
Linked stimuli such as the difference in texture following the same shaped border as the difference in what can be seen are aimed at developing a understanding that what can be felt as reality is the same as what they can see. The light cascade, or light waterfall, is a collection of optic fibres which can be switched on and off in a variety of timed patterns. It can be waved around, or children can wrap it around themselves, and be surrounded by light. We are currently constructing a 'dark room,' not for photography, but to give us more methods of assessing sight and stimulating any sight a person may have. Once we have discovered if the child can see at all, we can gradually introduce different stimuli, either together or individually, to assess how much sight the child has.