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Evidence for instructions-based updating of task-set representations: the informed fadeout effect
Maayan Pereg1, Nachshon Meiran2
1Department of Psychology and Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, 8410501, Beer-Sheva, Israel. maayanru@post.bgu.ac.il.
Psychological Research
|February 18, 2017
Summary
Cognitive task performance improves when people are informed about task changes, suggesting intentional control over task-set updating. This informed fadeout effect highlights active cognitive adjustments for optimized task switching.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Human Performance
Background:
- Cognitive systems update rapidly to enhance task performance.
- The 'fadeout effect' suggests performance gains when switching from complex to simple tasks.
- This effect's origin (passive learning vs. active control) remained unclear.
Purpose of the Study:
- To investigate intentional control in cognitive updating using a novel task-switching paradigm.
- To differentiate between passive learning and active cognitive control in task-set updating.
- To explore the 'informed fadeout effect' in detail.
Main Methods:
- Utilized a task-switching paradigm with a 'novel informed fadeout paradigm'.
- Participants performed tasks, with one task being canceled for a set number of trials.
- Participants were either informed or uninformed about the task cancellation.
Main Results:
- An 'informed fadeout effect' was observed, showing better performance in informed participants after one informed trial.
- Performance was superior in the informed group compared to the uninformed group.
- Results for the very first trial were inconclusive, requiring further investigation.
Conclusions:
- Intentional control plays a role in cognitive updating and task-set management.
- Informed awareness of task changes enhances cognitive performance.
- The findings suggest active cognitive strategies contribute to optimizing task switching.
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