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Fidler, D. J.; Schworer, E.; Will, E. A.; Patel, L.; Daunhauer, L. A. – Journal of Intellectual Disability Research, 2019
Background: While delays in cognitive development are detectable during early development in Down syndrome, the neuropsychological and biomedical underpinnings of cognitive skill acquisition in this population remain poorly understood. Method: To explore this issue, 38 infants with Down syndrome [mean chronological age = 9.65 months; SD = 3.64]…
Descriptors: Correlation, Infants, Down Syndrome, Cognitive Development
Arango, P. S.; Aparicio, A.; Tenorio, M. – Journal of Intellectual Disability Research, 2018
Background: Several studies show that socio-economic status (SES) is related to the developmental trajectories of children with typical development (TD). However, few studies have analysed this relationship regarding children with neurodevelopmental disorders such as Down syndrome (DS). In this paper, we analyse the impact of SES in the…
Descriptors: Foreign Countries, Down Syndrome, Socioeconomic Influences, Child Development
Powell, R. M.; Parish, S. L. – Journal of Intellectual Disability Research, 2017
Background: Despite an increase in international studies examining the experiences of parents with intellectual impairments and their children, few have utilised population-based data. This study investigated the behavioural and cognitive outcomes of 3-year-old US children of mothers with intellectual impairments compared with children of mothers…
Descriptors: Young Children, Mothers, Intellectual Disability, Parents with Disabilities
Joyce, A.; Dimitriou, D. – Journal of Intellectual Disability Research, 2017
Background: Sleep affects children's cognitive development, preparedness for school and future academic outcomes. People with Down syndrome (DS) are particularly at risk for sleep-disordered breathing (SDB). To our knowledge, the association between SDB and cognition in preschoolers with DS is unknown. Methods: We assessed sleep by using…
Descriptors: Sleep, Cognitive Development, Child Development, Down Syndrome
Patterson, T.; Rapsey, C. M.; Glue, P. – Journal of Intellectual Disability Research, 2013
Background: There is conjecture regarding the profile of cognitive development over time in children with Down syndrome (DS). Characterising this profile would be valuable for the planning and assessment of intervention studies. Method: A systematic search of the literature from 1990 to the present was conducted to identify longitudinal data on…
Descriptors: Cognitive Development, Down Syndrome, Intervention, Profiles
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
Cebula, K. R.; Moore, D. G.; Wishart, J. G. – Journal of Intellectual Disability Research, 2010
Characterising how socio-cognitive abilities develop has been crucial to understanding the wider development of typically developing children. It is equally central to understanding developmental pathways in children with intellectual disabilities such as Down's syndrome. While the process of acquisition of socio-cognitive abilities in typical…
Descriptors: Mental Retardation, Social Cognition, Child Psychology, Cognitive Development
van Balkom, I. D. C.; Shaw, A.; Vuijk, P. J.; Franssens, M.; Hoek, H. W.; Hennekam, R. C. M. – Journal of Intellectual Disability Research, 2011
Background: Marshall-Smith syndrome (MSS) is an infrequently described entity characterised by failure to thrive, developmental delay, abnormal bone maturation and a characteristic face. In studying the physical features of a group of patients, we noticed unusual behavioural traits. This urged us to study cognition, behavioural phenotype and…
Descriptors: Mental Retardation, Autism, Developmental Delays, Communication Skills