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Related Experiment Videos

Inner speech impairments in autism.

Andrew J O Whitehouse1, Murray T Maybery, Kevin Durkin

  • 1University of Western Australia, Australia. andrew.whitehouse@psy.ox.ac.uk

Journal of Child Psychology and Psychiatry, and Allied Disciplines
|August 11, 2006
PubMed
Summary

Children with autism show deficits in inner speech, impacting cognitive tasks like verbal recall and task-switching. This affects how they process information and perform on specific cognitive challenges.

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Area of Science:

  • Cognitive Psychology
  • Neurodevelopmental Disorders

Background:

  • Autism Spectrum Disorder (ASD) is associated with various cognitive differences.
  • Inner speech, or self-talk, is crucial for cognitive functions.
  • Investigating inner speech deficits in autism is key to understanding cognitive impairments.

Purpose of the Study:

  • To examine the role of inner speech deficits in the cognitive performance of children with autism.
  • To compare cognitive performance between children with autism and neurotypical controls.

Main Methods:

  • Experiment 1: Verbal recall task with pictures and words, comparing children with autism and controls.
  • Experiment 2: Assessed word-length effects in picture naming with varying encoding conditions.
  • Experiment 3: Utilized a task-switching paradigm to evaluate inner speech's role.

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Main Results:

  • Children with autism showed a reduced picture-superiority effect.
  • They exhibited altered word-length effects, particularly with overt labeling.
  • Task-switching performance in controls was impaired by articulatory suppression, but not in children with autism.

Conclusions:

  • Children with autism demonstrate limitations in utilizing inner speech.
  • These findings suggest inner speech deficits contribute to cognitive differences observed in autism.