Language involves the use of symbols in the form of words or signs that allow people to communicate their thoughts, ideas, and needs. Even without formal language, many children who are deaf-blind learn to communicate with gestures and object or picture symbols. Symbolic expression makes it possible to express thoughts and feelings about the…

Eighty-four sign glosses in the elementary-aged lexicon and 87 in the adolescent/adult lexicon for language-impaired severely mentally retarded individuals were examined for usefulness in terms of eight variables. Concept concreteness and word frequency were significantly represented for adolescent/adult lexicons but not for elementary lexicons.…

Three experiments examined the relation between language acquisition and other symbolic abilities in 18- and 26-month-olds. Found that 18-month-olds spontaneously interpreted gestures, like words, as names for object categories. At 26 months, they spontaneously interpreted words as names and novel gestures as names only when given additional…

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)

This study evaluated the recognition and retention of transparent and nontransparent manual signs by 50 sign-naive hearing college freshmen. There was a significant decrease in the number of nontransparent signs retained as the period of time after training increased. Implications for sign language training with nonverbal hearing persons are…