An analysis of speech disfluencies in down's syndrome and in normally intelligent subjects

Frances M. Otto, Ehud Yairi

Research output: Contribution to journalArticle


Spontaneous speech samples were obtained from 19 institutionalized mongoloids and from 19 normally intelligent individuals. All subjects were evaluated by a panel of speech pathologists to be nonstutterers. Subjects' speech samples were analyzed to determine (a) frequency of occurance of seven disfluency categories per 100 words spoken, (b) the proportion of each category in the total number of disfluencies. Statistically significant differences indicated that the mongoloids were more disfluent both absolutely and relatively, on categories that have been regarded as most typical to speech of stutterers. Interpretations were made to reflect on factors which may enhance the high prevalence of stuttering among Down's Syndrome patients.

Original languageEnglish (US)
Pages (from-to)26-32
Number of pages7
JournalJournal of Fluency Disorders
Issue number4
StatePublished - 1974
Externally publishedYes


ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Language and Linguistics
  • Linguistics and Language
  • Cognitive Neuroscience
  • Speech and Hearing
  • LPN and LVN

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