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Measuring the Kinematics of Daily Living Movements with Motion Capture Systems in Virtual Reality
Published on: April 5, 2018
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Movement-Contingent Time Flow in Virtual Reality Causes Temporal Recalibration.
Ambika Bansal1, Séamas Weech2, Michael Barnett-Cowan1
1Department of Kinesiology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada.
Scientific Reports
|March 15, 2019
Summary
Virtual reality (VR) exposure with movement-contingent time-flow recalibrated participants' time perception. Continuous motor tasks showed a 15% underestimation of intervals after VR, indicating sensorimotor adaptation.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Human-Computer Interaction
Background:
- Virtual reality (VR) offers a unique platform for investigating sensorimotor feedback loop alterations.
- Understanding how manipulated sensory-motor feedback affects perception is crucial for various applications.
Purpose of the Study:
- To determine if novel action-perception temporal relationships in VR induce time perception recalibration.
- To investigate the specificity of this recalibration to different motor tasks (continuous vs. discrete).
Main Methods:
- 31 participants completed time perception tasks (continuous and discrete motor methods) pre- and post-VR exposure.
- One group experienced standard VR ('normal-time'), while the other encountered movement-contingent time-flow (MCTF) VR.
- A block-counterbalanced design was employed.
Main Results:
- Exposure to VR with MCTF resulted in duration-dependent recalibration specific to continuous motor tasks.
- Participants underestimated probe intervals by approximately 15% after MCTF VR exposure.
- Control VR and non-VR tasks did not induce similar recalibration, confirming MCTF's specificity.
Conclusions:
- Novel sensorimotor contingencies in VR, specifically MCTF, can significantly recalibrate time perception.
- This recalibration is task-specific, affecting continuous but not discrete motor time perception.
- Findings have implications for VR-based rehabilitation and understanding sensorimotor adaptation.
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