Cited by 591Autism Spectrum Disorder ResearchChild Nutrition and Feeding IssuesChild and Animal Learning Development

The DOI matches its Crossref record; 72 of the 72 references it cites were found in a registry or an index.

Social and Communication Development in Toddlers With Early and Later Diagnosis of Autism Spectrum Disorders

Landa, Rebecca J., Holman, Katherine C., Garrett-Mayer, Elizabeth·2007·Archives of General Psychiatry

Abstract

CONTEXT: To our knowledge, no prospective studies of the developmental course of early and later diagnosis of autism spectrum disorders from 14 months of age exist. OBJECTIVE: To examine patterns of development from 14 to 24 months in children with early and later diagnosis of autism spectrum disorders. DESIGN: Prospective, longitudinal design in which 125 infants at high and low risk for autism were tested from age 14 to 36 months. Comprehensive standardized assessments included measures of social, communication, and play behavior. SETTING: Testing occurred at a major medical and research institution as part of a large, ongoing longitudinal study. PARTICIPANTS: Low-risk controls (n = 18) and siblings of children with autism, grouped on the basis of outcome diagnostic classification at 30 or 36 months: autism spectrum disorders (early diagnosis, n = 16; later diagnosis, n = 14), broader autism phenotype (n = 19), and non-broader autism phenotype (n = 58). MAIN OUTCOME MEASURES: Social, communication, and symbolic abilities were assessed. RESULTS: Social, communication, and play behavior in the early-diagnosis group differed from that in all other groups by 14 months of age. By 24 months, the later-diagnosis group differed from the non-autism spectrum disorder groups in social and communication behavior, but not from the early-diagnosis group. Examination of growth trajectories suggests that autism may involve developmental arrest, slowing, or even regression. CONCLUSION: This study provides insight into different patterns of development of children with early vs later diagnosis of autism spectrum disorders.

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Crossref · 10.1001/archpsyc.64.7.853

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Metadata

Authors
Landa, R. J., Holman, K. C., & Garrett-Mayer, E.
Affiliations
  • Kennedy Krieger Institute (US)
  • Johns Hopkins University (US)
Venue
Archives of General Psychiatry
Published
2007-07-01
Volume
64
Issue
7
Pages
853
ISSN
0003-990X (ISSN-L)
OpenAlex
W2149855925
Cited by
590
References
72
Citations by year
2026: 12 · 2025: 18 · 2024: 15 · 2023: 36 · 2022: 27 · 2021: 34 · 2020: 56 · 2019: 23 · 2018: 34 · 2017: 33 · 2016: 32 · 2015: 30 · 2014: 31 · 2013: 43 · 2012: 46
FWCI
14.15
Type
journal article
Language
en
Open access
closed
Locations
  • Archives of General Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Mental Health (154MH066417, MH59630, R01MH059630)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Health Sciences › Medicine › Psychiatry and Mental health › Child Nutrition and Feeding Issues
  • Social Sciences › Psychology › Developmental and Educational Psychology › Child and Animal Learning Development
Keywords
autism spectrum disorder, early diagnosis, toddlers, social development (developmental psychology), communication development, play behavior, developmental trajectories, developmental arrest, regression analysis, broader autism phenotype, siblings of autistic children, high-risk infants
MeSH terms
Age Factors, Autistic Disorder, Child Development, Developmental Disabilities, Child, Preschool, Communication Disorders, Female, Humans, Infant, Language Tests, Longitudinal Studies, Male, Nonverbal Communication, Personality Inventory, Phenotype, Play and Playthings, Prospective Studies, Psychiatric Status Rating Scales, Risk Factors, Social Behavior, Socialization, Statistics, Nonparametric, Genetic Predisposition to Disease, Siblings

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