Atypical vocabulary has been reported as one of the most notable features of the language of adolescents and adults with Williams syndrome (WS), including use of unusual or low frequency words. Two hypotheses were identified regarding the developmental origins of this phenomenon. The "intra-lexicon" hypothesis views the cause in terms of…

The booklet, fifth in a series, examines the assessment and remediation of reading difficulties in adults with learning disabilities. The section on assessment concerns touches upon reading recognition difficulties, and includes a list of questions for investigating auditory, tactile, and visual processes. Reading comprehension difficulties are…