Article

Journal of Autism and Developmental Disorders

, Volume 32, Issue 6, pp 513-518

Eye Movement Abnormality Suggestive of a Spatial Working Memory Deficit Is Present in Parents of Autistic Probands

  • Dianne L. KoczatAffiliated withDepartment of Psychiatry, University of Colorado Health Sciences Center
  • , Sally J. RogersAffiliated withDepartment of Psychiatry, University of Colorado Health Sciences Center
  • , Bruce F. PenningtonAffiliated withDepartment of Psychology, University of Denver
  • , Randal G. RossAffiliated withDepartment of Psychiatry, University of Colorado Health Sciences CenterDepartment of Psychiatry, Denver Veterans Administration Medical Center Email author 

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access

Abstract

Autistic probands exhibit impaired spatial accuracy and impaired response suppression errors during a delayed oculomotor response task. Family members of autistic probands, and thus the possible familial nature of these deficits, have not been assessed. Eleven parents of autistic probands and 17 adults from unaffected families, ages 25–50 years, completed oculomotor delayed-response tasks. Parents of autistic probands demonstrated poorer spatial accuracy than the comparison group (p = .002), with no significant differences between groups on percentage of premature saccades or latency of remembered saccades. Spatial working memory deficits, as measured by the delayed oculomotor response task, appear to be familial in families with an autistic proband. These deficits deserve further evaluation as a potential endophenotypic marker for genetic risk for autism.

Endophenotype saccade autism