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The continuum of linguistic dysfunction from pervasive developmental disorders to dyslexia
1University of Toronto, Ontario, Canada.
The Psychiatric Clinics of North America
|March 1, 1991
Summary
Children with psychiatric disorders like hyperactivity and autism often have speech and language impairments. These conditions may share common origins in neurodevelopmental immaturity.
Area of Science:
- Child Psychology
- Developmental Neuroscience
- Linguistics
Background:
- Speech and language impairments are frequently observed alongside common childhood psychiatric disorders.
- Shared characteristics include language deficits, family histories, and specific language outcomes.
Purpose of the Study:
- To investigate the association between language impairment and childhood psychiatric disorders.
- To explore potential common underlying neurolinguistic factors in affected children.
Main Methods:
- Review of prevalence surveys for speech and language disorders.
- Analysis of correlates of language impairment (IQ, socioeconomic status, birth order).
- Examination of associations with hyperactivity and autism spectrum disorder.
Main Results:
- Identified similarities in language impairments and outcomes across different psychiatric disorders.
- Investigated the link between language impairment and conditions like hyperactivity and autism.
- Discussed the outcomes associated with childhood language impairment.
Conclusions:
- A common neurolinguistic diathesis may underlie certain subgroups of psychiatrically disordered children.
- Psychiatric disorders and linguistic impairments might co-occur due to neurodevelopmental immaturity.
- Further research is needed to clarify the relationship between linguistic impairment and neurodevelopmental immaturity.