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Updated: Jun 15, 2025
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Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)
Published on: June 12, 2017
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Object- and feature-based working memory limits for pairs of complex objects and their development during the school
Chenye Bao1, Yu Li2, Nelson Cowan1
1Department of Psychological Sciences, University of Missouri, USA.
Cognition
|May 6, 2025
Summary
Children
Area of Science:
- Cognitive Psychology
- Developmental Psychology
- Neuroscience
Background:
- Prior research suggested object-based limits in children's working memory capacity.
- Previous studies used objects with limited features, potentially underestimating feature retention capacity.
Purpose of the Study:
- To investigate the role of feature richness in the development of working memory capacity.
- To examine how children and adults encode and retain features of complex objects.
Main Methods:
- Tested working memory for four-featured objects in children (8-12 years) and adults (N=101).
- Employed quantitative modeling to analyze errors in object and feature encoding.
- Differentiated between attention lapses and incomplete feature retention.
Main Results:
- Feature richness significantly impacts working memory development, more than previously assumed.
- Identified a two-step encoding process: object encoding followed by independent feature encoding.
- Found significant developmental improvements in both object and feature encoding.
Conclusions:
- Working memory development for complex objects is strongly influenced by feature encoding abilities.
- Findings challenge earlier assumptions about capacity limits, highlighting the importance of feature-rich stimuli.
- Suggests a refined model of working memory encoding for realistic objects.
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