Article
Psychology, Multidisciplinary
Veneta Andonova, Felipe Reinoso-Carvalho, Manuel Arturo Jimenez Ramirez, David Carrasquilla
Summary: The purpose of this study is to provide practical recommendations on using multisensory stimulation with virtual reality (VR) and scent to enhance learning experience, recall, and creativity in a stereotypical learning context. The research found that different combinations of visual, auditory, and olfactory stimuli had different effects on the learning experience and outcomes. Traditional video content with olfactory stimulus improved perceived quality, and olfactory stimulus combined with VR or traditional video increased perceived immersion. Traditional video alone resulted in the highest recall scores, while VR alone or combined with olfactory stimulus enhanced creativity.
FRONTIERS IN PSYCHOLOGY
(2023)
Article
Multidisciplinary Sciences
Anthony Renard, Evan Harrell, Brice Bathallier
Summary: This study investigates how the combination of olfactory and tactile inputs affects sensory representations in the cortex. The research shows that odors can alter the activity of barrel cortex neurons through enhancing whisking and a central mechanism. Odor responses have little impact on tactile information, but they are sufficient for decoding odor identity.
NATURE COMMUNICATIONS
(2022)
Article
Computer Science, Hardware & Architecture
Ramy Kirollos, Chris M. Herdman
Summary: Understanding the relationship between vection speed and display speed is important for accurate self-motion experiences. In this research, a virtual optokinetic drum was used to induce circular vection at different speeds, with results showing that participants perceive self-motion at faster speeds than intended. It is recommended to use indices such as the circular knob to better understand the relationship between graphic speed and vection speed.
Article
Computer Science, Information Systems
Zhanbo Lin, Zhilin Yao, Shengsheng Wang, Whenzhuo Song
Summary: Signed social recommendations leverage signed social information to solve the cold-start and data sparsity problem. Graph Neural Network methods have shown powerful performance in graph representation learning and have motivated the development of GNN-based social recommendation frameworks. However, building GNN-based signed social recommender systems faces challenges, such as the social inconsistency problem. To address this, the authors propose a novel framework called ESSRec that reconstructs the signed social graph and improves the performance of GNNs.
MULTIMEDIA TOOLS AND APPLICATIONS
(2023)
Article
Economics
Gaston Yalonetzky
Summary: This paper discusses whether inequality comparisons with ordinal variables should be sensitive to alternative sorting of the categories. The authors introduce the consistency property, which states that an inequality or bipolarisation index regards frequency distribution r less unequal than s if and only if it ranks the reverse-ordered distribution r' less unequal than s' for every pair of comparable frequency distributions. They characterize the class of consistent indices with a functional equation that serves as a useful test of the property. Applying the test to the most popular indices in the literature, they identify the respective consistent and inconsistent sets.
Article
Behavioral Sciences
Arran T. T. Reader, Sara Coppi, Victoria S. S. Trifonova, H. Henrik Ehrsson
Summary: In this study, the researchers attempted to replicate the reduction in MEP amplitude associated with the rubber hand illusion (RHI) and identify the components of the illusion that might explain these changes. Despite participants reporting the presence of the illusion and shifts in perceived real hand position towards the fake limb, no reduction in MEP amplitude was observed.
BRAIN AND BEHAVIOR
(2023)
Article
Computer Science, Artificial Intelligence
Yunbiao Liu, Chunyi Chen
Summary: Monocular depth estimation has made significant progress in recent years, but the results in omnidirectional images are not satisfying. In this paper, we propose a novel network-MODE that addresses the challenges in omnidirectional depth estimation and improves performance through flexible modules. The proposed method is validated on widely used datasets and shown to be effective through an ablation study on real-world datasets.
IMAGE AND VISION COMPUTING
(2023)
Article
Computer Science, Software Engineering
Zhoutong Zhang, Forrester Cole, Richard Tucker, William T. Freeman, Tali Dekel
Summary: The method aims to estimate the depth of dynamic scenes from ordinary videos using a new test-time training framework, which recursively unrolls the scene-flow prediction MLP to impose local smooth motion priors and multi-view consistency constraints, resulting in accurate and coherent results.
ACM TRANSACTIONS ON GRAPHICS
(2021)
Article
Computer Science, Hardware & Architecture
Jonathan Hurter, Crystal Maraj, Sean Murphy
Summary: Issues in both depth perception performance and simulator sickness effects may hinder future applications of virtual reality. Commercial head-mounted displays were compared in terms of depth perception tasks and simulator sickness profiles, showing significant differences in performance and sickness levels among different devices. Potential hardware issues and latency may affect the performance and user experience with these devices.
Article
Medicine, General & Internal
Viviana Lo Buono, Michele Torrisi, Simona Leonardi, Alessandra Pidala, Francesco Corallo
Summary: This case report describes the positive effect of multisensory environment rehabilitation on patients with spastic quadriplegia and intellectual disability. By providing stimuli in a multisensory room, designed activities can improve self-harm, motor stereotypies, sustained attention, and therapeutic compliance.
Article
Multidisciplinary Sciences
Pierre Guilleminot, Tobias Reichenbach
Summary: When listening to continuous speech, vibrotactile feedback presented at the rate of syllables can enhance speech comprehension. The enhancement occurs when vibrotactile pulses occur at the perceptual center of the syllables, while a temporal delay between the vibrotactile signals and the speech stream can lower speech comprehension. Electroencephalographic recordings show that audiotactile integration modulates the neural response to the speech rhythm and vibrotactile pulses, and these neural activities reflect the behavioral effects on speech comprehension.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Review
Genetics & Heredity
Saloni Dattani, David M. Howard, Cathryn M. Lewis, Pak C. Sham
Summary: As research in genetics has advanced, unexpected findings and inconsistencies have been observed. These inconsistencies can be caused by various factors such as statistical power, quality control, selection bias, and real differences. Statistical artifacts can either manifest as differences between results or conceal underlying differences. Therefore, it is crucial to critically examine these factors in order to understand the mechanisms of traits.
GENETIC EPIDEMIOLOGY
(2022)
Article
Mathematics, Applied
Ercilia Sousa
Summary: This study analyzes an implicit numerical method for a fractional diffusion problem with an absorbing boundary. The presence of the boundary is shown to change the properties of the scheme, affecting its consistency and convergence. The authors establish that the accuracy of the method can be lower than second-order in the presence of the boundary, and the convergence rate can be higher than the order of accuracy. In some cases, the second-order accuracy can still be achieved.
ADVANCES IN COMPUTATIONAL MATHEMATICS
(2022)
Article
Acoustics
Martin J. Lindenbeck, Piotr Majdak, Sridhar Srinivasan, Bernhard Laback
Summary: Users of cochlear implants (CIs) struggle with selective hearing due to limited access to timing cues like temporal pitch or interaural time differences (ITDs). One proposed method to improve timing-cue sensitivity is through inserting extra pulses with short inter-pulse intervals (SIPIs) into amplitude-modulated (AM) high-rate pulse trains. However, this study found that low SIPI rates for ITD may create unknown pitch effects, highlighting the challenge of improving both temporal-pitch and ITD sensitivity in a mixed-rate stimulation approach.
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2023)
Article
Automation & Control Systems
Jun Moon, Hyun Jong Yang
Summary: This article investigates the linear-quadratic time-inconsistent mean-field type leader-follower Stackelberg differential game with an adapted open-loop information structure and optimal solutions involving time inconsistency. By solving the nonsymmetric coupled RDEs, the equilibrium controls of the leader and the follower constitute a time-consistent Stackelberg equilibrium.
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
(2021)
Article
Computer Science, Interdisciplinary Applications
Joel Teixeira, Stephen Palmisano
Summary: Dynamic FOV restriction can effectively reduce cybersickness during HMD VR gameplay, while individual differences in spontaneous postural instability can predict the severity of cybersickness, and vection can enhance the sense of presence for HMD users.
Article
Biology
Ian D. Evans, Stephen Palmisano, Rodney J. Croft
Summary: The study aimed to compare phosphene detection thresholds using different montages to investigate the contribution of frontal regions and the occipital cortex to phosphenes induced by transcranial electric current stimulation. The results suggested that both frontal regions and the occipital cortex may play a role in phosphene perception, with varying levels of current density required for stimulation.
BIOELECTROMAGNETICS
(2021)
Article
Engineering, Industrial
Nahian S. Chowdhury, Wilson Luu, Stephen Palmisano, Hiroyasu Ujike, Juno Kim
Summary: This study revealed that simulating high amplitude self-oscillation at 0.25 Hz or 0.5 Hz has the strongest effects on postural sway and increases spatial presence in the virtual environment for participants wearing HMDs. These findings provide valuable insights into the sensory processes and postural constraints involved in experiencing virtual environments through HMD simulations.
APPLIED ERGONOMICS
(2021)
Article
Ophthalmology
Annabel Blake, Stephen Palmisano
Summary: The study found that there are differences in the perceptual processing of creative individuals, with individuals high in creativity/divergent thinking showing higher switching rates in specific visual illusion processing.
Article
Computer Science, Interdisciplinary Applications
Shiva Pedram, Robert Ogie, Stephen Palmisano, Matthew Farrelly, Pascal Perez
Summary: Virtual reality (VR) is considered a promising technology for training emergency first responders and safety-critical workers. A socio-technical systems approach is necessary to understand the social costs and benefits of VR training. Research findings suggest that the social benefits of using VR as a safety training tool outweigh the costs, with trainees showing a high inclination to recommend VR training to others.
Article
Computer Science, Interdisciplinary Applications
Juno Kim, Andrew Charbel-Salloum, Stuart Perry, Stephen Palmisano
Summary: Increasing head-to-display lag up to 212 ms was found to reduce the presence and strength of vection in virtual environments. Faster head oscillations (1.0 Hz) generated weaker presence and vection compared to slower head oscillations (0.5 Hz). Additionally, a positive correlation between vection and presence was found across a wide range of head-to-display lags, indicating that both experiences can be impaired by increasing lag or faster head movements.
Article
Neurosciences
Xuanru Guo, Shinji Nakamura, Yoshitaka Fujii, Takeharu Seno, Stephen Palmisano
Summary: Changing the speed, size and material properties of optic flow can significantly alter the experience of vection. The study showed that vection strength could be significantly altered by manipulating visual properties such as luminance contrast, averaged luminance, and spatial frequency. Interactions between these factors were also found to affect the induced vection.
EXPERIMENTAL BRAIN RESEARCH
(2021)
Article
Multidisciplinary Sciences
Ian Evans, Stephen Palmisano, Rodney J. Croft
Summary: Inconsistencies were found in the relationship between ambient lighting conditions and frequency-dependence in tES-induced phosphenes. Mesopic lighting conditions were found to have the lowest phosphene detection thresholds.
SCIENTIFIC REPORTS
(2022)
Article
Computer Science, Interdisciplinary Applications
Stephen Palmisano, Rikeya Constable
Summary: Repeated exposure to virtual reality can reduce the severity of cybersickness. This study investigated the exposure conditions required to reduce cybersickness in head-mounted display (HMD) VR and whether these reductions generalize to different games. Findings showed that repeated exposure to the same HMD VR game significantly reduced cybersickness, but this effect did not transfer to other games.
Article
Biophysics
Rebecca A. Mursic, Stephen Palmisano
Summary: This study investigated the effects of Shepard-Risset glissando on balance and illusory self-motion, finding that glissando increased the sense of illusory self-motion and individual differences in auditorily evoked postural sway predicted the strength of this illusion. Additionally, the sway patterns induced by glissando differed from those of other auditory stimuli, highlighting the importance of investigating the temporal dynamics of sound-posture interactions.
MULTISENSORY RESEARCH
(2022)
Article
Computer Science, Interdisciplinary Applications
Stephen Palmisano, Robert S. Allison, Joel Teixeira, Juno Kim
Summary: During HMD-based VR, differences in virtual and physical head pose (DVP) caused by head movements and display lag contribute to cybersickness. This study measured cybersickness and estimated DVP under different levels of display lag. The results showed that the severity of cybersickness increased with the amplitude and variability of DVP, supporting the DVP hypothesis.
Article
Computer Science, Software Engineering
Joel Teixeira, Sebastien Miellet, Stephen Palmisano
Summary: This study examined the possibility that unexpected visual-induced illusions of self-motion can cause cybersickness. The results showed that unexpected vection is the most important predictor of cybersickness, suggesting that developers should ensure that simulated self-motions are expected and perceived to be under user control in order to safely enhance experiences in HMD VR.
FRONTIERS IN VIRTUAL REALITY
(2022)
Meeting Abstract
Ophthalmology
Xuanru Guo, Shinji Nakamura, Yoshitaka Fujii, Takeharu Seno, Stephen Palmisano
Article
Computer Science, Software Engineering
Juno Kim, Stephen Palmisano, Wilson Luu, Shinichi Iwasaki
Summary: This study found that perceived scene instability increases with visual-vestibular conflicts in a virtual reality environment, but not all participants experience cybersickness. Despite the limited effect of linear coupling on cybersickness, perceived scene instability may explain some symptoms of cybersickness.
FRONTIERS IN VIRTUAL REALITY
(2021)
Article
Ophthalmology
Wilson Luu, Barbara Zangerl, Michael Kalloniatis, Stephen Palmisano, Juno Kim
Summary: This study found that participants with AMD exhibited stronger vection and spatial presence in self-motion perception, while individuals with glaucoma showed lower vection strength and spatial presence. Both AMD and glaucoma groups reported reduced severity in cybersickness compared to healthy normals.
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2021)
