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Direct linkViktorsson, Charlotte; Lindskog, Marcus; Li, Danyang; Tammimies, Kristiina; Taylor, Mark J.; Ronald, Angelica; Falck-Ytter, Terje – Developmental Science, 2023
The ability to perceive approximate numerosity is present in many animal species, and emerges early in human infants. Later in life, it is moderately heritable and associated with mathematical abilities, but the etiology of the Approximate Number System (ANS) and its degree of independence from other cognitive abilities in infancy is unknown.…
Descriptors: Infants, Numeracy, Genetics, Environmental Influences
Campbell, Susan B.; Northrup, Jessie B.; Tavares, Amy B. – Autism: The International Journal of Research and Practice, 2019
Children with autism spectrum disorder often demonstrate difficulties with self-regulation, although studies of this construct in young children with autism spectrum disorder are limited. In this study, developmental changes were examined using a measure of self-regulation appropriate for young children, resistance to temptation. At 22, 28, and 34…
Descriptors: Toddlers, Risk, Genetics, Autism
Rubenstein, Eric; Wiggins, Lisa D.; Schieve, Laura A.; Bradley, Chyrise; DiGuiseppi, Carolyn; Moody, Eric; Pandey, Juhi; Pretzel, Rebecca Edmondson; Howard, Annie Green; Olshan, Andrew F.; Pence, Brian W.; Daniels, Julie – Autism: The International Journal of Research and Practice, 2019
The autism spectrum disorder phenotype varies by social and communication ability and co-occurring developmental, behavioral, and medical conditions. Etiology is also diverse, with myriad potential genetic origins and environmental risk factors. Examining the influence of parental broader autism phenotype--a set of sub-clinical characteristics of…
Descriptors: Autism, Pervasive Developmental Disorders, Parents, Young Children
Kerin, Tara; Volk, Heather; Li, Weiyan; Lurmann, Fred; Eckel, Sandrah; McConnell, Rob; Hertz-Picciotto, Irva – Journal of Autism and Developmental Disorders, 2018
Prenatal exposure to air pollution has been associated with autism spectrum disorder (ASD) risk but no study has examined associations with ASD severity or functioning. Cognitive ability, adaptive functioning, and ASD severity were assessed in 327 children with ASD from the Childhood Autism Risks from Genetics and the Environment study using the…
Descriptors: Prenatal Influences, Pollution, Autism, Pervasive Developmental Disorders
Waite, Jane; Beck, Sarah R.; Heald, Mary; Powis, Laurie; Oliver, Chris – Journal of Autism and Developmental Disorders, 2016
Working memory (WM) impairments might amplify behavioural difference in genetic syndromes. Murine models of Rubinstein-Taybi syndrome (RTS) evidence memory impairments but there is limited research on memory in RTS. Individuals with RTS and typically developing children completed WM tasks, with participants with RTS completing an IQ assessment and…
Descriptors: Short Term Memory, Spatial Ability, Verbal Ability, Verbal Development
Campbell, Susan B.; Leezenbaum, Nina B.; Mahoney, Amanda S.; Day, Taylor N.; Schmidt, Emily N. – Autism: The International Journal of Research and Practice, 2015
Infant siblings of children with an autism spectrum disorder are at heightened genetic risk to develop autism spectrum disorder. We observed high risk (n?=?35) and low risk (n?=?27) infants at 11?months during free play with a parent. Children were assessed for autism spectrum disorder in toddlerhood. High-risk infants with a later diagnosis…
Descriptors: Autism, Pervasive Developmental Disorders, Infants, Siblings
Bedford, Rachael; Pickles, Andrew; Gliga, Teodora; Elsabbagh, Mayada; Charman, Tony; Johnson, Mark H. – Developmental Science, 2014
Emerging findings from studies with infants at familial high risk for autism spectrum disorder (ASD), owing to an older sibling with a diagnosis, suggest that those who go on to develop ASD show early impairments in the processing of stimuli with both social and non-social content. Although ASD is defined by social-communication impairments and…
Descriptors: Infants, Autism, Attention, Eye Movements
Chaidez, Virginia; Hansen, Robin L.; Hertz-Picciotto, Irva – Autism: The International Journal of Research and Practice, 2012
Objectives: To compare differences in autism between Hispanic and non-Hispanics. We also examined the relationship between multiple language exposure and language function and scores of children. Methods: The Childhood Autism Risks from Genetics and the Environment (CHARGE) study is an ongoing population-based case-control study with children…
Descriptors: Autism, Genetics, Receptive Language, Expressive Language
Visootsak, J.; Hess, B.; Bakeman, R.; Adamson, L. B. – Journal of Intellectual Disability Research, 2013
Background: Down syndrome (DS, OMIM #190685) is the most commonly identified genetic form of intellectual disability with congenital heart defect (CHD) occurring in 50% of cases. With advances in surgical techniques and an increasing lifespan, this has necessitated a greater understanding of the neurodevelopmental consequences of CHDs. Herein, we…
Descriptors: Down Syndrome, Heart Disorders, Mental Retardation, Language Acquisition
Angkustsiri, Kathleen; Krakowiak, Paula; Moghaddam, Billur; Wardinsky, Terrance; Gardner, Jerald; Kalamkarian, Nareg; Hertz-Picciotto, Irva; Hansen, Robin L. – Autism: The International Journal of Research and Practice, 2011
Objective: There is clinical heterogeneity among the autism spectrum disorders (ASD). The presence of dysmorphology (minor physical anomalies; MPAs) is one possible tool for defining a clinically relevant subset in ASD. This study employs an adaptation of Miles and Hillman's (2000) classifications by using photographs to identify a subgroup with…
Descriptors: Genetic Disorders, Autism, Seizures, Genetics
D'Souza, Dean; D'Souza, Hana; Jones, Emily J. H.; Karmiloff-Smith, Annette – Developmental Science, 2020
Typically developing (TD) infants adapt to the social world in part by shifting the focus of their processing resources to the relevant aspects of a visual scene. Any impairment in visual orienting may therefore constrain learning and development in domains such as language. However, although something is known about visual orienting in infants at…
Descriptors: Infants, Toddlers, Attention, Language Acquisition
Mattie, Laura J.; Hamrick, Lisa R. – Autism & Developmental Language Impairments, 2022
Background and Aims: Individuals with fragile X syndrome (FXS) characteristically struggle with language and communication throughout the life course, but there is limited research on the development of communication before 24 months. The purpose of this study is to describe the early communication of infants and toddlers with FXS using the…
Descriptors: Genetic Disorders, Congenital Impairments, Intellectual Disability, Language Impairments
Clarkson, Tessa; LeBlanc, Jocelyn; DeGregorio, Geneva; Vogel-Farley, Vanessa; Barnes, Katherine; Kaufmann, Walter E.; Nelson, Charles A. – Intellectual and Developmental Disabilities, 2017
Rett Syndrome (RTT) is characterized by severe impairment in fine motor (FM) and expressive language (EL) function, making accurate evaluations of development difficult with standardized assessments. In this study, the administration and scoring of the Mullen Scales of Early Learning (MSEL) were adapted to eliminate the confounding effects of FM…
Descriptors: Cognitive Ability, Motor Development, Children, Genetic Disorders
Roberts, Jane E.; McCary, Lindsay M.; Shinkareva, Svetlana V.; Bailey, Donald B., Jr. – Journal of Autism and Developmental Disorders, 2016
This study examined the developmental profile of male infants with fragile X syndrome (FXS) and its divergence from typical development and development of infants at high risk for autism associated with familial recurrence (ASIBs). Participants included 174 boys ranging in age from 5 to 28 months. Cross-sectional profiles on the Mullen Scales of…
Descriptors: Comparative Analysis, Genetic Disorders, Infants, Child Development
Tillmann, J.; Ashwood, K.; Absoud, M.; Bölte, S.; Bonnet-Brilhault, F.; Buitelaar, J. K.; Calderoni, S.; Calvo, R.; Canal-Bedia, R.; Canitano, R.; De Bildt, A.; Gomot, M.; Hoekstra, P. J.; Kaale, A.; McConachie, H.; Murphy, D. G.; Narzisi, A.; Oosterling, I.; Pejovic-Milovancevic, M.; Persico, A. M.; Puig, O.; Roeyers, H.; Rommelse, N.; Sacco, R.; Scandurra, V.; Stanfield, A. C.; Zander, E.; Charman, T. – Journal of Autism and Developmental Disorders, 2018
Research on sex-related differences in Autism Spectrum Disorder (ASD) has been impeded by small samples. We pooled 28 datasets from 18 sites across nine European countries to examine sex differences in the ASD phenotype on the ADI-R (376 females, 1763 males) and ADOS (233 females, 1187 males). On the ADI-R, early childhood restricted and…
Descriptors: Gender Differences, Age Differences, Diagnostic Tests, Observation
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