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Related Experiment Videos

Pedantic speaking style differentiates Asperger syndrome from high-functioning autism

M Ghaziuddin1, L Gerstein

  • 1University of Michigan, Ann Arbor, USA.

Journal of Autism and Developmental Disorders
|December 1, 1996
PubMed
Summary

Pedantic speech is a common characteristic in Asperger syndrome (AS), affecting 76% of patients. This finding suggests pedantic speech may help distinguish AS from high-functioning autism (HFA).

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Area of Science:

  • Neurodevelopmental Disorders
  • Clinical Psychology
  • Speech Pathology

Background:

  • Asperger syndrome (AS) is a pervasive developmental disorder.
  • Pedantic speech is a proposed clinical feature of AS, but lacks clear definition and measurement.
  • Differentiating AS from high-functioning autism (HFA) is clinically important.

Purpose of the Study:

  • To define and measure pedantic speech in patients with Asperger syndrome.
  • To investigate the prevalence of pedantic speech in AS.
  • To determine if pedantic speech can differentiate AS from HFA.

Main Methods:

  • An operational definition of pedantic speech was formulated.
  • A rating scale was devised to measure pedantic speech.
  • 17 patients with AS and 13 patients with HFA were assessed.

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Main Results:

  • 76% of AS patients (13 out of 17) were rated as having pedantic speech.
  • 31% of HFA patients (4 out of 13) exhibited pedantic speech.
  • The difference in pedantic speech prevalence between AS and HFA groups was statistically significant (p = .01).

Conclusions:

  • Pedantic speech is a common symptom in Asperger syndrome.
  • Pedantic speech may serve as a useful clinical marker to differentiate Asperger syndrome from high-functioning autism.