Egocentric distance perception refers to the perception of distance from a target to a perceiver, which is an important component of visual space perception. It is important to activities in virtual environments and influenced by several factors, such as action capacities and visual cues. However, few studies have investigated such aspects. Hence, Experiments 1 and 2 investigated the effect of using experience and visual cues, respectively, of virtual arms on egocentric distance perception in near and far spaces at equal, prolonged, and shortened lengths of a virtual arm. Results revealed that using experience and visual cues of the virtual arm had a significant effect on egocentric distance perception when the length of virtual arm was equal to the real arm and prolonged but not when shortened. The egocentric distance perception on the conditions of having using experience and virtual arm was most precise. The findings provide implications for the design and implementation of virtual body self-representation in virtual environments.
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http://dx.doi.org/10.1177/2041669519901134 | DOI Listing |
J Neuroeng Rehabil
January 2025
Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Vita Stråket 12, Floor 4, 41346, Gothenburg, Sweden.
Background: Myoelectric pattern recognition (MPR) combines multiple surface electromyography channels with a machine learning algorithm to decode motor intention with an aim to enhance upper limb function after stroke. This study aims to determine the feasibility and preliminary effectiveness of a novel intervention combining MPR, virtual reality (VR), and serious gaming to improve upper limb function in people with chronic stroke.
Methods: In this single case experimental A-B-A design study, six individuals with chronic stroke and moderate to severe upper limb impairment completed 18, 2 h sessions, 3 times a week.
Cognition
January 2025
Institute of Systems and Information Engineering, University of Tsukuba, Ibaraki 305-8573, Japan. Electronic address:
Pain perception is not solely determined by noxious stimuli, but also varies due to other factors, such as beliefs about pain and its uncertainty. A widely accepted theory posits that the brain integrates prediction of pain with noxious stimuli, to estimate pain intensity. This theory assumes that the estimated pain value is adjusted to minimize surprise, mathematically defined as errors between predictions and outcomes.
View Article and Find Full Text PDFJMIR Res Protoc
January 2025
Department of Physical Medicine and Rehabilitation, University of Alabama at Birmingham, Birmingham, AL, United States.
Background: Wheelchair users live predominantly sedentary lifestyles and have a substantially higher risk for cardiometabolic disease and mortality compared to people without disabilities. Exercise training has been found to be effective in improving cardiometabolic health (CMH) outcomes among people without disabilities, but research on wheelchair users is limited and of poor quality.
Objective: The primary aim of this study is to examine the immediate and sustained effects of a 24-week, telehealth, movement-to-music cardiovascular (M2M-C) exercise program on core indicators of CMH among adult wheelchair users compared to an active control group.
Resusc Plus
January 2025
Department of Paediatrics, Division of Paediatric Critical Care, CHEO, 401 Smyth Rd, Ottawa, Ontario K1H 8L1, Canada.
Background: Self-directed training has been recognized as a reasonable alternative to traditional instructor-led formats to teach laypeople Basic Life Support (BLS). Virtual tools can facilitate high-quality self-directed resuscitation education; however, their role in teaching paediatric BLS remains unclear due to limited empiric evaluation and suboptimal design of existing tools.
Aim: We describe the development and evaluation of a virtual simulation game (VSG) designed to teach high-quality paediatric BLS using a self-directed, online format with integrated deliberate practice and feedback.
J Emerg Med
August 2024
Department of Emergency Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Background: Amidst the COVID-19 pandemic, telemedicine emerged as an important option that supports and facilitates clinical practice, however, its usefulness in emergency settings that treat patients with cancer is unclear.
Objective: To evaluate patient perception of physician empathy in an emergency oncology setting, comparing video interaction to an in-person with personal protective equipment (PPE) approach.
Methods: In this single-center, prospective, cross-sectional, survey-based randomized controlled trial, patients were randomized 1:1 for the concluding conversation done in-person which included either interacting with physicians wearing PPE or video interaction with physicians without PPE (virtual).
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