Journal of Autism and Developmental Disorders

, Volume 35, Issue 4, pp 445–460

Examining the Relationship between Executive Functions and Restricted, Repetitive Symptoms of Autistic Disorder

  • Brian R. Lopez
  • Alan J. Lincoln
  • Sally Ozonoff
  • Zona Lai
Article

DOI: 10.1007/s10803-005-5035-x

Cite this article as:
Lopez, B.R., Lincoln, A.J., Ozonoff, S. et al. J Autism Dev Disord (2005) 35: 445. doi:10.1007/s10803-005-5035-x
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Abstract

The executive function theory was utilized to examine the relationship between cognitive process and the restricted, repetitive symptoms of Autistic Disorder (AD). Seventeen adults with AD were compared to 17 nonautistic controls on a new executive function battery (Delis-Kaplin Executive Function Scales). Restricted, repetitive symptoms were measured by a variety of instruments (i.e., the Autism Diagnostic Observation Schedule, Autism Diagnostic Interview-Revised, Gilliam Autism Rating Scale, and the Aberrant Behavior Checklist). The study replicated the executive function profile that has been reported in adults with AD. In addition to the replication findings, the study found several executive processes (i.e., cognitive flexibility, working memory, and response inhibition) were highly related to the restrictive, repetitive symptoms of AD; whereas, other executive process (i.e., planning and fluency) were not found to be significantly correlated with restricted, repetitive symptoms. Similarly, we found an executive function model consisting of relative strengths and deficits was the best predictor of restricted, repetitive symptoms of autism. The implications for the executive function theory and how the theory predicts core symptoms of autism are discussed.

Keywords

executive functionrestrictedrepetitive symptomsstereotyped behaviorsautistic symptomsDelis-Kaplin Executive Function Scales

Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • Brian R. Lopez
    • 1
  • Alan J. Lincoln
    • 2
  • Sally Ozonoff
    • 3
  • Zona Lai
    • 4
  1. 1.Center for Development and DisabilityUniversity of New MexicoAlbuquerqueUSA
  2. 2.Institute for Developmental Research and California School of Professional PsychologyUSA
  3. 3.M.I.N.D. InstituteUniversity of California Davis Medical CenterUSA
  4. 4.Scripps Research InstituteUSA