There is a growing body of opinion that we should view autism as fractionable into different, largely independent sets of clinical features. The alternative view is that autism is a coherent syndrome in which principal features of the disorder stand in intimate developmental relationship with each other. Studies of congenitally blind children…

Fifteen monozygotic and 22 dizygotic twin pairs, who were found to be lower in verbal ability than matched singletons at age two years, were compared at age nine years. Although twins still showed lower verbal ability, more variance in verbal ability was accounted for by the mothers' education and birth weight than by being a twin. (SLD)

Scanator is an extremely valuable tool in the functional analysis of qualitative stability in text building behavior during writing. Scanator also allows for a detailed investigation of subtle changes emerging in the structural relations of emergent novelties. This study focused on the extension of the application of Scanator to one pair of…