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Hocking, Darren R.; Thomas, Daniel; Menant, Jasmine C.; Porter, Melanie A.; Smith, Stuart; Lord, Stephen R.; Cornish, Kim M. – Developmental Science, 2013
Previous studies suggest that individuals with Williams syndrome (WS), a rare genetically based neurodevelopmental disorder, show specific weaknesses in visual attention and response inhibition within the visuospatial domain. Here we examine the extent to which impairments in attentional control extend to the visuomotor domain using a…
Descriptors: Mental Retardation, Genetic Disorders, Inhibition, Control Groups
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Maas, Anneke P. H. M.; Didden, Robert; Bouts, Lex; Smits, Marcel G.; Curfs, Leopold M. G. – Research in Developmental Disabilities: A Multidisciplinary Journal, 2009
Individuals with Prader-Willi syndrome (PWS) are at risk for excessive daytime sleepiness (EDS) and disruptive behavior. This pilot study explores temporal characteristics of EDS and severe disruptive behavior across time of day and day of week in seven individuals with PWS (aged between 33 and 49 years) of whom five were matched to controls.…
Descriptors: Mental Retardation, Risk, Sleep, Behavior Problems
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Jarvinen-Pasley, Anna; Adolphs, Ralph; Yam, Anna; Hill, Kiley J.; Grichanik, Mark; Reilly, Judy; Mills, Debra; Reiss, Allan L.; Korenberg, Julie R.; Bellugi, Ursula – Neuropsychologia, 2010
A frequently noted but largely anecdotal behavioral observation in Williams syndrome (WS) is an increased tendency to approach strangers, yet the basis for this behavior remains unknown. We examined the relationship between affect identification ability and affiliative behavior in participants with WS relative to a neurotypical comparison group.…
Descriptors: Social Behavior, Identification, Social Cognition, Statistical Significance
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Evenhuis, Heleen M.; Sjoukes, L.; Koot, H. M.; Kooijman, A. C. – Journal of Intellectual Disability Research, 2009
Background: This study addresses the question to what extent visual impairment leads to additional disability in adults with intellectual disabilities (ID). Method: In a multi-centre cross-sectional study of 269 adults with mild to profound ID, social and behavioural functioning was assessed with observant-based questionnaires, prior to expert…
Descriptors: Visual Impairments, Mental Retardation, Regression (Statistics), Daily Living Skills
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Reiter, Shunit; Lapidot-Lefler, Noam – Intellectual and Developmental Disabilities, 2007
Harassment and bullying among 186 students with intellectual disabilities, ages 12 to 21 years, in special education schools were examined. The differences between bullies and victims in terms of social adjustment and social skills were investigated. No prototypes characterizing differences in social skills were found between the three subgroups:…
Descriptors: Mental Retardation, Violence, Social Adjustment, Special Education
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Rosen, Marvin – Mental Retardation, 1993
The methodology of many studies that have identified specific genetic loci for disorders associated with mental retardation is criticized as failing to demonstrate an association between the behavior phenotype and the genetic marker. A more appropriate methodology using a multitrait-multimethod approach is suggested. (Author/JDD)
Descriptors: Behavior Patterns, Correlation, Genetics, Mental Retardation
Ferro, Jolenea; And Others – American Journal on Mental Retardation, 1996
A study of 288 students with moderate to severe mental retardation investigated the relationship between curricular activities and problem behaviors. Findings indicated a positive correlation between ratings of curricular activities (based on activities being socially functional, peer referenced, and behaviorally functional) and students'…
Descriptors: Behavior Patterns, Behavior Problems, Correlation, Curriculum Design