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Thomas, Michael S. C.; Knowland, Victoria C. P.; Karmiloff-Smith, Annette – Psychological Review, 2011
Loss of previously established behaviors in early childhood constitutes a markedly atypical developmental trajectory. It is found almost uniquely in autism and its cause is currently unknown (Baird et al., 2008). We present an artificial neural network model of developmental regression, exploring the hypothesis that regression is caused by…
Descriptors: Autism, Language Impairments, Prediction, Developmental Stages
Romano, Elisa; Baillargeon, Raymond H.; Tremblay, Richard E. – Human Resources Development Canada, 2002
Hyperactivity, impulsivity, and inattention are among the most common behaviour problems in children. The aim of this study was to estimate the prevalence of hyperactivity-impulsivity and inattention in the Canadian population of 2-11-year-old girls and boys, using data from the first National Longitudinal Survey of Children and Youth (NLSCY)…
Descriptors: Incidence, Probability, Public Policy, Health Services