The sustained attention of 23 young adults with mild mental retardation and nonretarded subjects was assessed. Findings suggested that the sustained attention of the retarded differs from that of the nonretarded on those vigilance tasks that place demands on memory abilities. (Author/DB)

Twenty-six adolescents with educable mental retardation were identified as good or poor attenders based on teachers' ratings on an attention scale and were administered an auditory vigilance test and Posner's physical and name identity task. Although the vigilance task did not discriminate between groups, the more demanding Posner's task did.…