Related Experiment Videos
Postural control and cognitive task performance in healthy participants while balancing on different support-surface
M C Dault1, A C Geurts, T W Mulder
1Department of Kinesiology, University of Waterloo, Waterloo, Canada.
Gait & Posture
|October 16, 2001
Summary
Adding cognitive tasks impacts postural control, especially during novel or difficult stances. This suggests a general capacity limit affects how we balance and think simultaneously.
Area of Science:
- Human motor control
- Cognitive neuroscience
- Aging and pathology studies
Background:
- Upright stance is typically considered automatic, requiring minimal attention.
- However, cognitive tasks can disrupt postural control, particularly in older adults or those with health conditions.
Purpose of the Study:
- To investigate how adding cognitive tasks of varying difficulty affects postural control.
- To examine how postural control changes with different levels of stance difficulty.
Main Methods:
- Participants performed postural tasks of varying difficulty.
- A cognitive task of adjustable difficulty was introduced during postural tasks.
- Interference between cognitive and postural tasks was measured.
Main Results:
- Increased interference was observed when combining cognitive tasks with more difficult or novel postural stances.
- This suggests a generalized interference effect impacting dual-task performance.
- A speed-difficulty trade-off in cognitive task performance limited the ability to isolate difficulty effects.
Conclusions:
- Dual-tasking cognitive and postural control can lead to generalized capacity interference.
- The difficulty and novelty of the postural task significantly influence the degree of interference.
- Further research is needed to fully understand the impact of cognitive task difficulty on dual-task interference.