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Involuntary retrieval in alphabet-arithmetic tasks: task-mixing and task-switching costs
Iring Koch1, Wolfgang Prinz, Alan Allport
1Department of Psychology, Max Planck Institute for Human Cognitive and Brain Sciences, Amalienstrasse 33, 80799, Munich, Germany. iring.koch@cbs.mpg.de
Psychological Research
|March 8, 2005
Summary
Memory retrieval impacts task switching by influencing item-specific mappings. Inconsistent mappings increase general multi-task effects, affecting performance in mixed-task blocks but not switch costs.
Area of Science:
- Cognitive Psychology
- Neuroscience
Background:
- Task switching involves cognitive control and managing multiple tasks.
- Memory retrieval can influence cognitive processes like task switching.
Purpose of the Study:
- To investigate how memory retrieval affects task switching performance.
- To examine the role of item-specific stimulus-to-task mappings in task switching.
Main Methods:
- Two alphabet-arithmetic experiments were conducted.
- Item-specific stimulus-to-task mappings were manipulated (consistent vs. varied).
- Performance was measured in terms of mixing costs and switch costs.
Main Results:
- Varied mappings (VM) led to worse performance than consistent mappings (CM), indicating item-specific effects.
- These effects contributed to mixing costs but not switch costs.
- Differential effects on mixing and switch costs were observed across experiments.
Conclusions:
- Involuntary task and response retrieval interfere with task switching.
- These interferences primarily elevate general multi-task effects, such as maintaining current task activation.
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