Effect of task complexity on ipsilateral motor response programming to physically presented and imagined stimuli
Dominic G McNeil1,2, Michael Spittle3, Einar B Thorsteinsson2
1School of Psychology, Deakin University, Geelong, VIC, Australia.
Quarterly Journal of Experimental Psychology (2006)
|October 29, 2020
Summary
Mental imagery may simulate real-world reactions, but complex tasks show differences. This study explored imagery
Area of Science:
- Cognitive psychology
- Motor control
- Human performance
Background:
- The simulation of performance demands during mental imagery remains unclear.
- Investigating whether perceptual and motor control processes are replicated during imagery is crucial for understanding its effectiveness.
Purpose of the Study:
- To determine if perceptual and motor control processes for reacting to unpredictable stimuli and initiating ipsilateral movements are replicated during mental imagery.
- To compare performance between physically presented and imagined stimuli in reaction tasks.
Main Methods:
- Fifty-nine undergraduate students performed simple and two-choice congruent/incongruent ipsilateral finger-foot movement trials.
- Participants responded to both physically presented and imagined stimuli.
- Reaction times and task adherence were measured.
Main Results:
- Participants maintained the ipsilateral finger-foot programming rule for both imagined and actual stimuli.
- Reaction time slowed with increased task difficulty, supporting reaction to both stimulus types.
- Imagery performance was slower than physical performance on complex tasks, suggesting limitations in imagery complexity.
Conclusions:
- Theoretical similarities exist between imagery and physical performance in reaction tasks.
- Individuals can generate and react to unpredictable stimuli during imagery, though exploratory processes may not be fully replicated.
- Findings have implications for using mental imagery in skill acquisition.
