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Updated: Feb 7, 2026
09:44
Methods to Test Visual Attention Online
Published on: February 19, 2015
12.5K
Attentional demands associated with augmented visual feedback during quiet standing.
Krzysztof Kręcisz1, Michał Kuczyński2
1Faculty of Physical Education and Physiotherapy, Opole University of Technology, Opole, Poland.
Peerj
|July 26, 2018
Summary
Visual feedback (VFB) enhances postural stability by making center-of-pressure signals more irregular and automatic. This study shows VFB improves balance control in healthy adults.
Area of Science:
- Biomechanics
- Human Motor Control
- Neuroscience
Background:
- Postural stability is crucial for daily activities.
- Visual feedback can influence motor control.
- Understanding its effects on balance is important for rehabilitation and performance.
Purpose of the Study:
- To investigate the effects of additional visual feedback (VFB) on postural stability.
- To analyze center-of-pressure (COP) parameters and reaction time (RT) with and without VFB.
Main Methods:
- Seven healthy adults performed 20-second postural trials under two conditions: with and without VFB.
- COP data (SD, MV, SE, MPF) and auditory RT were recorded.
- Statistical analysis was performed to compare conditions.
Main Results:
- VFB increased reaction time, indicating it is attention-demanding.
- VFB decreased sway (SD) and increased signal irregularity (SE) in both medial-lateral and anterior-posterior planes.
- VFB increased mean power frequency (MPF) and mean velocity (MV) in the AP plane, suggesting enhanced postural control activity.
Conclusions:
- Visual feedback is effective in stabilizing posture.
- VFB promotes more automatic and potentially noisy postural control.
- The availability of visual targets enhances the speed and efficiency of the postural control system.
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