Journal of Autism and Developmental Disorders

, Volume 44, Issue 10, pp 2392–2399

Expression of the Broad Autism Phenotype in Simplex Autism Families from the Simons Simplex Collection

  • Julie Davidson
  • Robin P. Goin-Kochel
  • Lee Anne Green-Snyder
  • Rachel J. Hundley
  • Zachary Warren
  • Sarika U. Peters
Original Paper

Abstract

The broad autism phenotype (BAP) refers to the phenotypic expression of an underlying genetic liability to autism, manifest in non-autistic relatives. This study examined the relationship among the Broad Autism Phenotype Questionnaire (BAPQ), Social Responsiveness Scale: Adult Research Version (SRS:ARV), and Family History Interview (FHI) in a large, multi-site study of 1,650 simplex families (Simons Simplex Collection). Correlations between the BAPQ and SRS:ARV Total scores were moderate, and correlations between FHI ratings and SRS:ARV and BAPQ were significant but weak. Overall, the results suggested that BAP traits occur at low rates in simplex families, and rates vary significantly depending upon the measure utilized. Implications include the need for multiple informants, and the assessment of distinct BAP traits in large-scale genetic studies of individuals with ASD.

Keywords

Autism Broad autism phenotype 

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Julie Davidson
    • 1
  • Robin P. Goin-Kochel
    • 2
  • Lee Anne Green-Snyder
    • 3
  • Rachel J. Hundley
    • 1
  • Zachary Warren
    • 1
  • Sarika U. Peters
    • 1
  1. 1.Departments of Pediatrics and PsychiatryVanderbilt UniversityNashvilleUSA
  2. 2.Department of PediatricsBaylor College of MedicineHoustonUSA
  3. 3.Children’s Hospital of BostonBostonUSA

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