Metaphoric devices in drawings of motion mean the same to the blind and the sighted

Five pictures, each with a different way of indicating motion, were given to blind and to sighted subjects--as tactual pictures for the blind, and as ink-print pictures for the sighted. The subjects matched the pictures to kinds of motion. The blind subjects concurred with each other and with the sighted in their matches. Therefore the devices are effective without explicit or formal training in their interpretation. The basis for the devices, it is argued, is not convention. Rather, the devices are metaphoric.