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Tunnicliffe, Penny; Oliver, Chris – Research in Developmental Disabilities: A Multidisciplinary Journal, 2011
The research literature notes both biological and operant theories of behavior disorder in individuals with intellectual disabilities. These two theories of genetic predisposition and operant reinforcement remain quite distinct; neither theory on its own is sufficient to explain challenging behavior in genetic syndromes and an integrated approach…
Descriptors: Causal Models, Severity (of Disability), Severe Mental Retardation, Behavior Disorders
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Furniss, Frederick; Biswas, Asit B.; Gumber, Rohit; Singh, Niraj – Research in Developmental Disabilities: A Multidisciplinary Journal, 2011
The behavioural phenotype of velocardiofacial syndrome (VCFS), one of the most common human multiple anomaly syndromes, includes developmental disabilities, frequently including intellectual disability (ID) and high risk of diagnosis of psychotic disorders including schizophrenia. VCFS may offer a model of the relationship between ID and risk of…
Descriptors: Mental Retardation, Schizophrenia, Developmental Disabilities, Serial Learning