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Direct linkAlfieri, P.; Menghini, D.; Marotta, L.; De Peppo, L.; Ravà, L.; Salvaguardia, F.; Varuzza, C.; Vicari, S. – Journal of Intellectual Disability Research, 2017
Background: Individuals with Williams syndrome (WS) show a disharmonic linguistic profile with a clear pattern of strengths and weaknesses. Despite their sociable nature, atypical socio-communicative abilities and deficits in communication and relationship with others have been found. Aim: The aim of the present study was to investigate whether…
Descriptors: Intellectual Disability, Genetic Disorders, Language Skills, Interpersonal Communication
Frolli, A.; Piscopo, S.; Conson, M. – Journal of Intellectual Disability Research, 2015
Background: Individuals with fragile-X syndrome exhibit developmental delay, hyperexcitation and social anxiety; they also show lack of attention and hyperactivity. Few studies have investigated whether levels of functioning change with increasing age. Here, we explored developmental changes across adolescence in the cognitive and behavioural…
Descriptors: Adolescents, Genetic Disorders, Developmental Delays, Anxiety
Goodrich-Hunsaker, Naomi J.; Wong, Ling M.; McLennan, Yingratana; Srivastava, Siddharth; Tassone, Flora; Harvey, Danielle; Rivera, Susan M.; Simon, Tony J. – Brain and Cognition, 2011
The high frequency of the fragile X premutation in the general population and its emerging neurocognitive implications highlight the need to investigate the effects of the premutation on lifespan cognitive development. Until recently, cognitive function in fragile X premutation carriers (fXPCs) was presumed to be unaffected by the mutation. Here…
Descriptors: Young Adults, Cognitive Development, Genetic Disorders, Females
Hammock, Elizabeth; Veenstra-VanderWeele, Jeremy; Yan, Zhongyu; Kerr, Travis M.; Morris, Marianna; Anderson, George M.; Carter, C. Sue; Cook, Edwin H.; Jacob, Suma – Journal of the American Academy of Child & Adolescent Psychiatry, 2012
Objective: Autism spectrum disorder (ASD) is a heritable but highly heterogeneous neuropsychiatric syndrome, which poses challenges for research relying solely on behavioral symptoms or diagnosis. Examining biomarkers may give us ways to identify individuals who demonstrate specific developmental trajectories and etiological factors related to…
Descriptors: Animals, Autism, Symptoms (Individual Disorders), Brain
Sterling, A.; Abbeduto, L. – Journal of Intellectual Disability Research, 2012
Background: Girls with fragile X syndrome (FXS) have a wide range of cognitive and language abilities. The range of language outcomes experienced by girls with FXS, however, has been relatively unexplored. The purpose of this exploratory study was to examine receptive and expressive language, with a focus on vocabulary and syntax, in a group of…
Descriptors: Females, Syntax, Expressive Language, Language Acquisition
Howlin, Patricia; Elison, Sarah; Udwin, Orlee; Stinton, Christopher – Journal of Applied Research in Intellectual Disabilities, 2010
Background: Little is known about trajectories of cognitive functioning as individuals with Williams syndrome (WS) move though adulthood. Method: The present study investigated cognitive, linguistic and adaptive functioning in adults with WS aged 19-55 years, using both cross-sectional and longitudinal approaches. Results: Data from the…
Descriptors: Comprehension, Mental Retardation, Linguistics, Intelligence Quotient
Van Herwegen, Jo; Ansari, Daniel; Xu, Fei; Karmiloff-Smith, Annette – Developmental Science, 2008
Previous studies have suggested that typically developing 6-month-old infants are able to discriminate between small and large numerosities. However, discrimination between small numerosities in young infants is only possible when variables continuous with number (e.g. area or circumference) are confounded. In contrast, large number discrimination…
Descriptors: Toddlers, Infants, Number Concepts, Numeracy
