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Sensory reweighting and self-motion perception for postural control under single-sensory and multisensory perturbations in older Tai Chi practitioners.
Front Hum Neurosci
November 2024
Department of Sports Science, College of Education, Zhejiang University, Hangzhou, China.
Article Synopsis
- The study investigates how older adults, specifically Tai Chi (TC) practitioners, differ from non-practitioners in their ability to reweight sensory information for balance control in various sensory challenges.
- 24 TC practitioners and 23 active older adults participated in tests measuring standing stability and self-motion perception while exposed to different perturbations.
- Results showed that TC practitioners had better postural stability, quicker adaptation to disturbances, and a greater ability to rely on stable sensory inputs compared to non-practitioners, indicating the benefits of long-term Tai Chi practice on balance and sensory processing.
Physio-avatar EB: aftereffects in error learning with EMG manipulation of first-person avatar experience.
Front Bioeng Biotechnol
October 2024
Graduate School of Engineering Science, Osaka University, Toyonaka, Japan.
Article Synopsis
- The study investigates the use of a real-time, continuous system that manipulates a virtual arm using electromyogram (EMG) signals, unlike previous methods that relied on machine learning or trigger controls for specific motions.
- An experiment involving seven healthy participants was conducted to assess changes in their motor control strategies after experiencing the physio-avatar EMG biofeedback system, which aims to induce physiological changes through new interactions.
- Results showed that while participants initially adapted their motor control strategies using the physio-avatar system, they eventually reverted to their original strategies, indicating a significant impact on their motor control but also a tendency to return to baseline after the intervention.
Individual differences in direction-selective motion adaptation revealed by change-detection performance.
Vision Res
December 2024
City St George's, University of London, United Kingdom. Electronic address:
The motion aftereffect (MAE) and motion adaptation in general are usually considered to be universal phenomena. However, in a preliminary study using a bias-free measure of the MAE we found some individuals who showed at best a weak effect of adaptation. These same individuals also performed poorly in a "change detection" test of motion adaptation based on visual search, leading to the conjecture that there is a bimodality in the population with respect to motion adaptation.
View Article and Find Full Text PDFCross-channel adaptation reveals shared emotion representation from face and biological motion.
Emotion
September 2024
State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences.
Emotions in interpersonal interactions can be communicated simultaneously via various social signals such as face and biological motion (BM). Here, we demonstrate that even though BM and face are very different in visual properties, emotions conveyed by these two types of social signals involve dedicated and common processing mechanisms ( = 168, college students, 2020-2024). By utilizing the visual adaptation paradigm, we found that prolonged exposure to the happy BM biased the emotion perception of the subsequently presented morphed BM toward sad, and vice versus.
View Article and Find Full Text PDFRehabilitation for ankle fractures in adults.
Cochrane Database Syst Rev
September 2024
Musculoskeletal Health Sydney, Sydney School of Public Health, The University of Sydney, Sydney, Australia.
Background: Ankle fracture is one of the most common lower limb fractures. Whilst immobilisation of the ankle can support and protect the fracture site during early healing, this also increases the risk of ankle weakness, stiffness, and residual pain. Rehabilitation aims to address the after-effects of this injury, to improve ankle function and quality of life.
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