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Russo, Natalie; Flanagan, Tara; Iarocci, Grace; Berringer, Darlene; Zelazo, Philip David; Burack, Jacob A. – Brain and Cognition, 2007
Individuals with autism demonstrate impairments on measures of executive function (EF) relative to typically developing comparison participants. EF is comprised of several processes including inhibition, working memory and set shifting that develop throughout the lifespan. Impairments in EF may appear early in development and persist, or may…
Descriptors: Inhibition, Autism, Memory, Cognitive Processes
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Iarocci, Grace; Yager, Jodi; Elfers, Theo – Brain and Cognition, 2007
Social competence is a complex human behaviour that is likely to involve a system of genes that interacts with a myriad of environmental risk and protective factors. The search for its genetic and environmental origins and influences is equally complex and will require a multidimensional conceptualization and multiple methods and levels of…
Descriptors: Environmental Influences, Social Development, Genetics, Interpersonal Competence
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Peters, Michael; Reimers, Stian; Manning, John T. – Brain and Cognition, 2006
In an Internet study unrelated to handedness, 134,317 female and 120,783 male participants answered a graded question as to which hand they preferred for writing. This allowed determination of hand preference patterns across 7 ethnic groups. Sex differences in left-handedness were found in 4 ethnic groups, favoring males, while no significant sex…
Descriptors: Handedness, Writing (Composition), Gender Differences, Ethnic Groups