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Relational Memory Processes in Adults with Autism Spectrum Disorder
Melanie Ring1,2, Sebastian B Gaigg1, Dermot M Bowler1
1Autism Research Group, Department of Psychology, City University London, UK.
Summary
Autism Spectrum Disorder (ASD) individuals showed lower performance on item, sequential, spatial, and associative memory tasks compared to typically developing individuals. This challenges previous assumptions about intact item memory in ASD.
Area of Science:
- Cognitive Psychology
- Neurodevelopmental Disorders
Background:
- Previous research suggested intact item memory but impaired relational memory in Autism Spectrum Disorder (ASD).
- The current study investigates memory for items and relational aspects (sequential, spatial, associative) in ASD.
Purpose of the Study:
- To compare memory performance for items and various relations between items in individuals with ASD and typically developing (TD) individuals.
- To explore the impact of task complexity and processing types on memory in ASD.
Main Methods:
- Participants studied abstract shape triplets.
- Memory was tested for individual items, sequential order, spatial locations, and associative combinations.
- Comparison between ASD and TD groups.
Main Results:
- Contrary to predictions, the ASD group performed significantly worse on all four memory tasks (item, sequential, spatial, associative).
- Performance differences suggest potential challenges in item memory and relational processing in ASD.
- Age-related analysis indicated that order memory decline with age was less pronounced in ASD compared to TD individuals.
Conclusions:
- The findings challenge the notion of universally intact item memory in ASD.
- Task complexity and reliance on relational processing may influence performance differences.
- Further research is needed to understand lifespan cognitive changes in ASD, particularly regarding relational processing.
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