1982 Volume 20 Issue 2 Pages 38-45
In this paper, it is hypothesized that main variable for reduction of stereotypies of the nonambulatory profoundly retarded in the institution, is systematic and continuous teaching that is corresponded to developmental stage of the case, and promotes manipulatory ability of sensorimotor. The case exhibited high-frequent and and self-stimulatory stereotypies, and few "hand regard". Giving her 2 year's teaching for basic visual behavior contained in "hand regard", she has formed reachinggrasping behavior but insufficient, and at the same time her stereotypies has reduced. When discussed this process, it is proved that manual manipulation for reaching-grasping is parallel with her manual acts for stereotypies, and her early behavior for visual and manual behavior reduces her steretypies. So that, her stereotypies may become foundation for higher behavior, by systematic and continuous teaching corresponded to her developmental stage. But precendents insist that stereotypies are singular and undevelopmental behavior.