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An examination of refreshing in between-category sequences
Naomi Langerock1, David Wisniewski2, Marcel Brass2
1Faculty of Psychology and Educational Sciences, University of Geneva, Switzerland.
Annals of the New York Academy of Sciences
|May 11, 2018
Summary
This study reveals that the cognitive load effect in working memory (WM) applies to diverse memory types, not just similar ones. This finding clarifies the domain-generality of refreshing mechanisms in cognitive load tasks.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Memory Research
Background:
- Refreshing is a key working memory (WM) mechanism for maintaining information against forgetting.
- The cognitive load (CL) effect, where WM performance degrades with increased concurrent processing, is well-established.
- Previous research on the CL effect primarily used within-category memory sequences.
Purpose of the Study:
- To investigate the nature of refreshing in working memory.
- To examine whether the cognitive load (CL) effect extends to between-category memory sequences.
- To assess the domain-generality of the CL effect in working memory.
Main Methods:
- Utilized complex span tasks combining processing and storage demands.
- Manipulated cognitive load (CL) by varying concurrent processing time.
- Compared the CL effect across within-category and between-category memory sequences.
Main Results:
- Demonstrated that the cognitive load (CL) effect is present in between-category memory sequences.
- Showed that WM performance is influenced by CL regardless of memory item category.
- Provided evidence for the domain-generality of the CL effect.
Conclusions:
- The cognitive load (CL) effect generalizes across different types of memory items.
- Refreshing mechanisms in working memory are robust and not limited to specific item categories.
- Findings have implications for understanding the nature of refreshing and future cognitive load research.
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