Domain specificity in conceptual development: neuropsychological evidence from autism
1MRC Cognitive Development Unit, University of London, UK.
Cognition
|June 1, 1992
Summary
Autistic children struggle with understanding beliefs but not pictorial representations. This suggests a specialized cognitive mechanism for "theory of mind" may be impaired in autism.
Area of Science:
- Cognitive Science
- Developmental Psychology
- Neuroscience
Background:
- Understanding conceptual development requires considering cognitive architecture.
- Neurodevelopmental disorders, such as autism, offer insights into cognitive development.
- Autistic individuals exhibit specific difficulties in concept formation.
Purpose of the Study:
- To investigate conceptual development by studying autistic children.
- To differentiate the development of understanding beliefs versus pictorial representations.
- To explore the cognitive mechanisms underlying folk psychology and their potential dissociation in autism.
Main Methods:
- Comparing performance of autistic children and neurotypical 4-year-olds on belief-understanding tasks.
- Assessing performance on tasks involving false beliefs versus false maps or diagrams.
- Analyzing performance differences to infer domain-specificity of concepts.
Main Results:
- Autistic children performed poorly on belief-understanding tasks but near-perfectly on pictorial representation tasks.
- Neurotypical children showed a clear advantage in understanding false beliefs over false maps.
- Autistic subjects performed better on false map tasks than false belief tasks.
Conclusions:
- The concept of 'belief' develops as a domain-specific notion, distinct from mental imagery (pictures/maps).
- Evidence supports a specialized cognitive mechanism for folk psychology, which can be selectively impaired in autism.
- Findings inform a new model for the development of false belief understanding.
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