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Cognitive subtypes in developmentally disabled children: a pilot study.

D Fein, L Waterhouse, D Lucci

Journal of Autism and Developmental Disorders

|March 1, 1985

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This study explored cognitive subtypes in 54 developmentally disabled children, finding distinct groups based on cognitive strengths. Results suggest autistic behaviors may be independent of these cognitive patterns.

Area of Science:

Developmental Psychology
Neurodevelopmental Disorders
Cognitive Science

Background:

Pervasive developmental disorders lack reliable diagnostic categories for research.
Existing classifications show insufficient validity and homogeneity.
Need for objective subtyping in developmental disabilities.

Purpose of the Study:

To perform cognitive subtyping of developmentally disabled children.
To identify distinct cognitive profiles within this population.
To explore the relationship between cognitive patterns and behavioral characteristics.

Main Methods:

Cognitive assessment of 54 developmentally disabled children.
Categorization into groups based on verbal, performance, memory, and quantitative test results.

Related Experiment Videos

Validation of subtypes using cognitive and behavioral variables.

Main Results:

Fifty-one children were successfully categorized into distinct cognitive groups.
About half exhibited strong visuospatial skills, consistent with prior autism research.
These visuospatial skills did not correlate with increased autistic behaviors.

Conclusions:

Cognitive subtyping can differentiate developmental disabilities effectively.
Autistic aloofness and maintenance of sameness may be independent of cognitive profiles.
Findings challenge assumptions about the direct link between specific cognitive patterns and autistic behaviors.