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The influence of action effects in task-switching
Sarah Lukas1, Andrea M Philipp, Iring Koch
1Institute of Psychology, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen University Aachen, Germany ; Institute of Psychology and Education, Ulm University Ulm, Germany.
Frontiers in Psychology
|February 27, 2013
Summary
Anticipating action effects aids in task-switching, especially when task preparation time is limited. Predictable action effects reduce switch costs, while unpredictable effects increase them, highlighting the role of anticipation in cognitive control.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Human-Computer Interaction
Background:
- Ideomotor theories posit that actions are planned based on their anticipated sensory consequences.
- Task-switching research investigates the cognitive mechanisms underlying the ability to shift between different tasks.
Purpose of the Study:
- To investigate the role of anticipated action effects in cued task-switching.
- To determine if predictable action effects influence switch costs and reaction times.
Main Methods:
- Participants practiced specific task-response-effect mappings during an acquisition phase.
- A transfer phase introduced unpredictable task-response-effect mappings to assess the impact of predictability.
- Reaction times (RT) and switch costs were measured under varying preparation times.
Main Results:
- Unpredictable action effects led to increased RT and switch costs, particularly in trials with short preparation times.
- Switch costs were significantly smaller when action effects were predictable compared to unpredictable.
- The influence of unpredictable action effects was less pronounced with longer preparation times.
Conclusions:
- Anticipated, task-specific action effects facilitate task-set activation prior to execution, especially when cue-based preparation is minimal.
- Predictability of action effects plays a crucial role in efficient cognitive control during task-switching.
- These findings support the integration of action effect anticipation into models of task-switching and cognitive control.
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