The relationship between sign and verbal learning was explored using 10 severely mentally retarded adults. They were taught color labels in sign, verbal, or sign and verbal groups. Sign labels tended to be learned more efficiently; combined sign and verbal training improved verbal learning but not sign learning. (Author/CM)

Computation can have a profound intellectual impact, like the alphabet thousands of years ago. Using computation, people can begin to outline cognitive structures that will revolutionize the way they learn, although, especially at universities, the dreams must sometimes lag behind their potential due to limited funding. Ultimately, however, the…