According to Edward Shorter, just forty years ago the institutions housing people with mental retardation (MR) had become a national scandal. The mentally retarded who lived at home were largely isolated and a source of family shame. Although some social stigma still attaches to the people with developmental disabilities (a range of conditions including what until recently was called mental retardation), they now actively participate in our society and are entitled by law to educational, social, and medical services. The immense improvement in their daily lives and life chances came about in...