In contrast with widely documented deficits of semantic knowledge relating to object concepts and the corresponding nouns in semantic dementia (SD), little is known about action semantics and verb production in SD. The degradation of action semantic knowledge was studied in 5 patients with SD compared with 17 matched control participants in an…

In this study we characterized profiles of communicative functions and forms of children with autism and intellectual disability (n = 26), as compared to typically developing children (n = 26) with a comparable nonverbal mental age (2-5 years). Videotapes of the Communication and Symbolic Behavior Scales--Developmental Profile were analyzed using…