Differences in visual orienting between persons with Down or fragile X syndrome

Tara Flanagan, James T. Enns, Melissa M. Murphy, Natalie Russo, Leonard J Abbeduto, Beth Randolph, Jacob A. Burack

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The voluntary and reflexive orienting abilities of persons with Down syndrome and fragile X syndrome, at average MA levels of approximately 4 and 7 years, were compared with an RT task. Reflexive orienting abilities appeared to develop in accordance with MA for the participants with Down syndrome but not for those with fragile X syndrome. However, both groups showed delayed voluntary orienting. The group differences in reflexive orienting at the low MA level reinforce the practice of separating etiologies and highlight the contribution of rudimentary attentional processes in the study of individuals with mental retardation.

Original languageEnglish (US)
Pages (from-to)128-134
Number of pages7
JournalBrain and Cognition
Volume65
Issue number1
DOIs
StatePublished - Oct 2007
Externally publishedYes

Keywords

  • Attention
  • Down syndrome
  • Fragile X syndrome
  • Mental retardation
  • Visual orienting

ASJC Scopus subject areas

  • Cognitive Neuroscience
  • Experimental and Cognitive Psychology
  • Neuropsychology and Physiological Psychology

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