Semantic Fields in Low-Functioning Autism

Katharina Boser, Susannah Higgins, Anne Fetherston, Melissa Allen Preissler, Barry Gordon

Research output: Contribution to journalArticlepeer-review

Abstract

Restricted semantic fields and resultant stimulus overselectivity are often thought to be typical of low-functioning autism, as is a strong visual processing preference. However, these conclusions may in part be an artifact of testing methodology. A 12-year-old, low-functioning and nonverbal autistic boy was tested on an auditory word-to-picture selection task. The picture foils were chosen to have visual features, semantic features, both, or neither in common with the correct answer. Errors were made more often to semantically than to visually related items, and he showed generalization to items that had not been explicitly trained. This is taken as evidence that his semantic fields are broader than otherwise apparent, and that he was capable of expanding his semantic representations independently of specific training.

Original languageEnglish (US)
Pages (from-to)563-582
Number of pages20
JournalJournal of Autism and Developmental Disorders
Volume32
Issue number6
DOIs
StatePublished - Dec 2002

Keywords

  • Assessment
  • Categorization
  • Low-functioning autism
  • Overselectivity
  • Semantic knowledge
  • Single word learning

ASJC Scopus subject areas

  • Developmental and Educational Psychology

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