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Journal articles on the topic 'Virtuell stimulus'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 February 2022

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1

Jorjafki, Elham Mohammadi, Brad J. Sagarin, and Sachit Butail. "Drawing power of virtual crowds." Journal of The Royal Society Interface 15, no. 145 (2018): 20180335. http://dx.doi.org/10.1098/rsif.2018.0335.

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In 1969, social psychologist Milgram and his colleagues conducted an experiment on a busy city street where passers-by witnessed a set of actors spontaneously looking up towards a building. The experiment showed that the crowd's propensity to mimic the actor's gaze increased with the number of actors that looked up. This form of behavioural contagion is found in many social organisms and is central to how information travels through large groups. With the advancement of virtual reality and its continued application towards understanding human response to crowd behaviour, it remains to be verif

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Yahata, Ryotaro, Wataru Takeya, Takeharu Seno, and Yasuaki Tamada. "Hot Wind to the Body Can Facilitate Vection Only When Participants Walk Through a Fire Corridor Virtually." Perception 50, no. 2 (2021): 154–64. http://dx.doi.org/10.1177/0301006620987087.

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Vection has been reported to be enhanced by wind, as long as the wind is a normal temperature and not hot. However, here we report that a hot wind can facilitate vection, as long as it is natural and consistent with the visual stimulus. We created a fire-corridor stimulus that was consistent with a hot wind and a control stimulus composed of cubes, which were irrelevant to a hot wind. We compared the vection strength induced by a fire-corridor (fire condition) visual stimulus with that induced by geometric cubes (no-fire condition) visual stimulus. There were three wind type conditions: a norm

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Pino, Maria Chiara, Roberto Vagnetti, Marco Valenti, and Monica Mazza. "Comparing virtual vs real faces expressing emotions in children with autism: An eye-tracking study." Education and Information Technologies 26, no. 5 (2021): 5717–32. http://dx.doi.org/10.1007/s10639-021-10552-w.

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AbstractDifficulties in processing emotional facial expressions is considered a central characteristic of children with autism spectrum condition (ASC). In addition, there is a growing interest in the use of virtual avatars capable of expressing emotions as an intervention aimed at improving the social skills of these individuals. One potential use of avatars is that they could enhance facial recognition and guide attention. However, this aspect needs further investigation. The aim of our study is to assess differences in eye gaze processes in children with ASC when they see avatar faces expre

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Sambelashvili, Aleksandre T., Vladimir P. Nikolski, and Igor R. Efimov. "Nonlinear effects in subthreshold virtual electrode polarization." American Journal of Physiology-Heart and Circulatory Physiology 284, no. 6 (2003): H2368—H2374. http://dx.doi.org/10.1152/ajpheart.00988.2002.

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Introduction of the virtual electrode polarization (VEP) theory suggested solutions to several century-old puzzles of heart electrophysiology including explanation of the mechanisms of stimulation and defibrillation. Bidomain theory predicts that VEPs should exist at any stimulus strength. Although the presence of VEPs for strong suprathreshold pulses has been well documented, their existence at subthreshold strengths during diastole remains controversial. We studied cardiac membrane polarization produced by subthreshold stimuli in 1) rabbit ventricular muscle using high-resolution fluorescent

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Cardeal, Liliane, Mariana Muñoz, Aline Bernardes de Souza, Paulo Batista Lopes, Raquel Cymrot, and Silvana Maria Blascovi-Assis. "VIRTUAL GAMES AS THERAPEUTIC RESOURCE IN THE STIMULUS MANUAL FUNCTIONS." Cadernos de Pós-Graduação em Distúrbios do Desenvolvimento 16, no. 2 (2016): 68–76. http://dx.doi.org/10.5935/1809-4139.20160008.

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Ninness, Chris, and Sharon K. Ninness. "Emergent Virtual Analytics: Modeling Contextual Control of Derived Stimulus Relations." Behavior and Social Issues 29, no. 1 (2020): 119–37. http://dx.doi.org/10.1007/s42822-020-00032-0.

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Silva de Sousa, Julio Cesar, Camila Torriani-Pasin, Amanda Barboza Tosi, Rafael Yokoyama Fecchio, Luiz Augusto Riani Costa, and Cláudia Lúcia de Moraes Forjaz. "Aerobic Stimulus Induced by Virtual Reality Games in Stroke Survivors." Archives of Physical Medicine and Rehabilitation 99, no. 5 (2018): 927–33. http://dx.doi.org/10.1016/j.apmr.2018.01.014.

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Snopková, Dajana, Hana Švedová, Petr Kubíček, and Zdeněk Stachoň. "Navigation in Indoor Environments: Does the Type of Visual Learning Stimulus Matter?" ISPRS International Journal of Geo-Information 8, no. 6 (2019): 251. http://dx.doi.org/10.3390/ijgi8060251.

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This work addresses the impact of a geovisualization’s level of realism on a user’s experience in indoor navigation. The key part of the work is a user study in which participants navigated along a designated evacuation route previously learnt in a virtual tour or traditional 2D floor plan. The efficiency and effectiveness of completing the task was measured by the number of incorrect turns during navigation and completion time. The complexity of mental spatial representations that participants developed before and after navigating the route was also evaluated. The data was obtained using seve

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Kennedy, Robert S., Kevin S. Berbaum, William P. Dunlap, and Lawrence J. Hettinger. "Developing Automated Methods to Quantify the Visual Stimulus for Cybersickness." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 40, no. 22 (1996): 1126–30. http://dx.doi.org/10.1177/154193129604002204.

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Simulator sickness is a significant human factors issue in simulator and virtual environment systems. The extent to which users are adversely affected by sickness-inducing stimuli in virtual environments may hinder the behavioral goals sought (training, systems evaluation, etc.). To alleviate the problem, it is first necessary to accurately and reliably quantify the amount and type of visual motion stimulation that leads to motion sickness-like discomfort. This paper describes a human performance-based approach to the development of a system capable of measuring the visual stimulus for motion

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Matamala-Gomez, Marta, Birgit Nierula, Tony Donegan, Mel Slater, and Maria V. Sanchez-Vives. "Manipulating the Perceived Shape and Color of a Virtual Limb Can Modulate Pain Responses." Journal of Clinical Medicine 9, no. 2 (2020): 291. http://dx.doi.org/10.3390/jcm9020291.

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Changes in body representation may affect pain perception. The effect of a distorted body image, such as the telescoping effect in amputee patients, on pain perception, is unclear. This study aimed to investigate whether distorting an embodied virtual arm in virtual reality (simulating the telescoping effect in amputees) modulated pain perception and anticipatory responses to pain in healthy participants. Twenty-seven right-handed participants were immersed in virtual reality and the virtual arm was shown with three different levels of distortion with a virtual threatening stimulus either appr

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Verdon, Megan, Caroline Lee, Danila Marini, and Richard Rawnsley. "Pre-Exposure to an Electrical Stimulus Primes Associative Pairing of Audio and Electrical Stimuli for Dairy Heifers in a Virtual Fencing Feed Attractant Trial." Animals 10, no. 2 (2020): 217. http://dx.doi.org/10.3390/ani10020217.

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This experiment examined whether pre-exposure to an electrical stimulus from electric fencing attenuates associative pairing of audio and electrical stimuli in dairy heifers. Two treatments were applied to 30 weaned heifers naive to electric fencing. Heifers in the ‘electric-fence’ treatment were exposed to an electrified perimeter fence and two periods of strip-grazing using electrified poly-wire. Control heifers remained naïve to electric fencing. The pairing of audio and electrical stimuli was assessed in a feed attractant trial using manually controlled training collars. Heifers received a

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Uchejeso, Obeta M., Ikeagwulonu R. Chinaza, and Ejinaka R. Obiora. "COVID-19: THE STIMULUS FOR VIRTUAL LEARNING IN MEDICAL LABORATORY SCIENCE." Journal of Bio Innovation 9, no. 5 (2020): 812–20. http://dx.doi.org/10.46344/jbino.2020.v09i05.17.

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Yin, Liao, Kai Huang, Xin Zhang, Jianyi Meng, Haitong Ge, and Xiaolang Yan. "Virtual SoC Platform Based Orthogonal Stimulus Verification Methodology for IP Designs." Journal of Computer-Aided Design & Computer Graphics 22, no. 8 (2010): 1399–405. http://dx.doi.org/10.3724/sp.j.1089.2010.10995.

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Stawicki, Marnix, Piotr Majdak, and Deniz Başkent. "Ventriloquist Illusion Produced With Virtual Acoustic Spatial Cues and Asynchronous Audiovisual Stimuli in Both Young and Older Individuals." Multisensory Research 32, no. 8 (2019): 745–70. http://dx.doi.org/10.1163/22134808-20191430.

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Abstract Ventriloquist illusion, the change in perceived location of an auditory stimulus when a synchronously presented but spatially discordant visual stimulus is added, has been previously shown in young healthy populations to be a robust paradigm that mainly relies on automatic processes. Here, we propose ventriloquist illusion as a potential simple test to assess audiovisual (AV) integration in young and older individuals. We used a modified version of the illusion paradigm that was adaptive, nearly bias-free, relied on binaural stimulus representation using generic head-related transfer

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Resibisma, Brillianda, and Neila Ramdhani. "Virtual Reality Heights Exposure and Its Impact on College Student’s Physiological Response and Emotional Condition." Gadjah Mada Journal of Professional Psychology (GamaJPP) 6, no. 2 (2020): 140. http://dx.doi.org/10.22146/gamajpp.54872.

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Various studies have been done to overcome excessive fear of heights. One way to overcome excessive fear of heights is to use exposure therapy. This study aimed to determine the effect of virtual reality heights exposure on physiological response and emotional condition in college students. The hypothesis of this study was that there is a significant effect of virtual reality heights exposure on physiological response and emotional condition that is characterized by changes in skin conductance when the stimulus is presented and changes in emotional condition after the stimulus is presented. Th

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Wenderoth, Peter, Rick van der Zwan, and Martin Williams. "Direct Evidence for Competition between Local and Global Mechanisms of Two-Dimensional Orientation Illusions." Perception 22, no. 3 (1993): 273–86. http://dx.doi.org/10.1068/p220273.

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Orientation illusions induced by two-dimensional stimuli, such as square outline frames or plaids, have been more or less adequately accounted for in terms of repulsion of the vertical test stimulus from the axis of symmetry nearest vertical of the inducing stimulus, whether that axis is real or virtual. Recently, data have been obtained which directly suggest a more complex mechanism: one in which the observed illusion is the sum of all effects—complementary and antagonistic—induced by all axes flanking vertical which are sufficiently close to vertical to exert a significant effect. Experimen

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King, Robert A., Greg E. Fujawa, and Kelly G. Elliott. "The Ponzo Illusion in Virtual Environments: Correctly Applied Size Constancy?" Proceedings of the Human Factors and Ergonomics Society Annual Meeting 40, no. 11 (1996): 551–54. http://dx.doi.org/10.1177/154193129604001106.

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The perceived size of a stimulus can be greatly influenced by the surrounding depth cues. The effect size of the Ponzo Illusion was tested in a virtual environment with many depth cues (MC) and few depth cues (FC) conditions. The effect of size and the depth cues on the perceived proximal size of the stimulus was measured. Methods. A modified Wheatstone stereoscope was used to present the stimuli on a monitor positioned 80 cm from the subjects. The subjects used a 6AFC confidence rating scale to indicate whether the first or second of two sequentially presented stimuli had a greater proximal e

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Gill, Orna, and John Polich. "P300 Stimulus Sequence Effects in Children and Adults." Perceptual and Motor Skills 94, no. 2 (2002): 509–20. http://dx.doi.org/10.2466/pms.2002.94.2.509.

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Immediate memory capability for 12 children (8 years) and 12 adults (21 years) was assessed electrophysiologically by using P300 event-related brain potential (ERP) stimulus sequences. These were derived from an auditory discrimination paradigm in which participants detected target stimuli in a series of target (T) and standard (S) tones that were varied by randomly presenting one of four sequence patterns (SSSS, TTTT, TTTS, SSST). Short-term memory capability was assessed behaviorally by recall performance of a 20-word list. Children and adults showed virtually identical P300 amplitude sequen

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Freitas, Flávia, Kelma Galeno, Juliana Bittencourt, et al. "The increase in absolute theta power and the inhibition of light stimulus in cybersickness." Research, Society and Development 10, no. 12 (2021): e29101220070. http://dx.doi.org/10.33448/rsd-v10i12.20070.

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Cybersickness results from the visual vestibule conflict, that is, the incoherence between the sensations related to real movement, in the virtual environment, and the visual stimuli. In response to the virtual environment, one can observe discomforts such as nausea, difficulty in concentrating, and headaches, among others. There are no studies in the literature that analyze the inhibition control of light stimuli in individuals sensitive to Cybersickness. Therefore, this study looked at the control of light stimulus inhibition in Cybersickness. The Sickness Susceptibility Questionnaire was us

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Chen, Siyuan, and Minchen Wei. "Real-world environment affects the color appearance of virtual stimuli produced by augmented reality." Color and Imaging Conference 2019, no. 1 (2019): 237–42. http://dx.doi.org/10.2352/issn.2169-2629.2019.27.42.

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Color appearance models have been extensively studied for characterizing and predicting the perceived color appearance of physical color stimuli under different viewing conditions. These stimuli are either surface colors reflecting illumination or self-luminous emitting radiations. With the rapid development of augmented reality (AR) and mixed reality (MR), it is critically important to understand how the color appearance of the objects that are produced by AR and MR are perceived, especially when these objects are overlaid on the real world. In this study, nine lighting conditions, with diffe

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Remole, Arnulf, Albert S. Y. Ng, Linda L. Bathe, Paul D. Padfield, Marlee M. Spafford, and Mary A. Szymkiw. "Flicker Haloes Observed with Subjective Borders." Perception 14, no. 1 (1985): 31–40. http://dx.doi.org/10.1068/p140031.

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Subjective borders are known to behave quite similarly to real borders when the stimulus presents fragments of visually meaningful forms. There is less information on whether this also applies to unfamiliar stimulus elements. Thus, if a dark/bright stimulus border is presented intermittently at certain frequencies below flicker fusion, the bright border enhancement band increases greatly in width and takes on a textured appearance, resembling a halo streaming from the border. The percept is spontaneous and unlike anything experienced in real life. Preliminary observations showed that the effec

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Kaminskas, Vytautas, and Edgaras Ščiglinskas. "A Comparison of the Control Schemes of Human Response to a Dynamic Virtual 3D Face." Information Technology And Control 48, no. 2 (2019): 250–67. http://dx.doi.org/10.5755/j01.itc.48.2.21667.

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This paper introduces the application of predictor-based control principles for the control of human response to a virtual 3D face. A dynamic woman 3D face is observed in virtual reality. We use changing distance-between-eyes in a 3D face as a stimulus – control signal. Human responses to the stimulus are observed using EEG-based excitement signals – output signal. The technique of dynamic systems identification which ensure stability and possible higher gain of the model for building a predictive input-output model of control plant is applied. Three predictor-based control schemes with a mini

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Remijn, Gerard B., Tatsuya Yoshizawa, and Hiroaki Yano. "Streaming, Bouncing, and Rotation: The Polka Dance Stimulus." i-Perception 9, no. 4 (2018): 204166951877725. http://dx.doi.org/10.1177/2041669518777259.

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When the objects in a typical stream-bounce stimulus are made to rotate on a circular trajectory, not two but four percepts can be observed: streaming, bouncing, clockwise rotation, and counterclockwise rotation, often with spontaneous reversals between them. When streaming or bouncing is perceived, the objects seem to move on individual, opposite trajectories. When rotation is perceived, however, the objects seem to move in unison on the same circular trajectory, as if constituting the edges of a virtual pane that pivots around its axis. We called this stimulus the Polka Dance stimulus. Exper

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Zhao, Yiming, Afeng Wang, and Yongqiang Sun. "Technological environment, virtual experience, and MOOC continuance: A stimulus–organism–response perspective." Computers & Education 144 (January 2020): 103721. http://dx.doi.org/10.1016/j.compedu.2019.103721.

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Ohka, Masahiro, Hiroshi Koga, Yukihiro Mouri, Tokuhiro Sugiura, Tetsu Miyaoka, and Yasunaga Mitsuya. "Figure and texture presentation capabilities of a tactile mouse equipped with a display pad of stimulus pins." Robotica 25, no. 4 (2007): 451–60. http://dx.doi.org/10.1017/s0263574706003274.

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SUMMARYTo obtain specifications for a tactile display that would be effective in virtual reality and tele-existence systems, we have developed two types of matrix-type experimental tactile displays. One is for virtual figures (display A) and the other is for virtual textures (display B). Display A's pad has a 4 × 6 array of stimulus pins, each 0.8 mm in diameter. Three pad configurations, in which distances between any two adjacent pins (pin pitch) are 1.2, 1.9, or 2.5 mm, were developed to examine the influence of distance on a human operator's determination of virtual figures. Display B has

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Kritikos, Jacob, Chara Zoitaki, Giannis Tzannetos, et al. "Comparison between Full Body Motion Recognition Camera Interaction and Hand Controllers Interaction used in Virtual Reality Exposure Therapy for Acrophobia." Sensors 20, no. 5 (2020): 1244. http://dx.doi.org/10.3390/s20051244.

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Virtual Reality has already been proven as a useful supplementary treatment tool for anxiety disorders. However, no specific technological importance has been given so far on how to apply Virtual Reality with a way that properly stimulates the phobic stimulus and provide the necessary means for lifelike experience. Thanks to technological advancements, there is now a variety of hardware that can help enhance stronger emotions generated by Virtual Reality systems. This study aims to evaluate the feeling of presence during different hardware setups of Virtual Reality Exposure Therapy, and, parti

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Ryu, Semin, Dongbum Pyo, Soo-Chul Lim, and Dong-Soo Kwon. "Rendering Strategy to Counter Mutual Masking Effect in Multiple Tactile Feedback." Applied Sciences 10, no. 14 (2020): 4990. http://dx.doi.org/10.3390/app10144990.

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Recently, methods and devices that simultaneously utilize two or more tactile feedback types have been proposed for more immersive interaction with virtual objects. However, the masking effect, which makes us less sensitive to various stimuli presented at the same time, has scarcely been explored. In this study, we propose a novel tactile rendering algorithm that can eliminate the mutual masking effect at the user’s sensation level, when mechanical vibration and electrovibration are applied simultaneously. First, the masking functions of the two stimuli were investigated for various stimulus c

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Kearton, Tellisa, Danila Marini, Frances Cowley, Susan Belson, and Caroline Lee. "The Effect of Virtual Fencing Stimuli on Stress Responses and Behavior in Sheep." Animals 9, no. 1 (2019): 30. http://dx.doi.org/10.3390/ani9010030.

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To understand the animal welfare impact of virtual fencing stimuli (audio cue ‘beep’ and electrical stimulus) on naïve sheep, it is necessary to assess stress responses during the animal’s first encounters with these stimuli. Eighty Merino ewes were exposed to one of the following treatments (n = 16 animals per treatment): Control (no stimuli), beep, dog bark, manual restraint, and electrical stimulus. Collars were used to apply the audio and electrical stimuli. The restraint treatment showed an elevated cortisol response compared with the control (p < 0.05), but there were no differences b

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Seno, Takeharu, and Haruaki Fukuda. "Stimulus Meanings Alter Illusory Self-motion (Vection) — Experimental Examination of the Train Illusion." Seeing and Perceiving 25, no. 6 (2012): 631–45. http://dx.doi.org/10.1163/18784763-00002394.

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Over the last 100 years, numerous studies have examined the effective visual stimulus properties for inducing illusory self-motion (known as vection). This vection is often experienced more strongly in daily life than under controlled experimental conditions. One well-known example of vection in real life is the so-called ‘train illusion’. In the present study, we showed that this train illusion can also be generated in the laboratory using virtual computer graphics-based motion stimuli. We also demonstrated that this vection can be modified by altering the meaning of the visual stimuli (i.e.,

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Heilmann, Florian, and Kerstin Witte. "Perception and Action under Different Stimulus Presentations: A Review of Eye-Tracking Studies with an Extended View on Possibilities of Virtual Reality." Applied Sciences 11, no. 12 (2021): 5546. http://dx.doi.org/10.3390/app11125546.

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Visual anticipation is essential for performance in sports. This review provides information on the differences between stimulus presentations and motor responses in eye-tracking studies and considers virtual reality (VR), a new possibility to present stimuli. A systematic literature search on PubMed, ScienceDirect, IEEE Xplore, and SURF was conducted. The number of studies examining the influence of stimulus presentation (in situ, video) is deficient but still sufficient to describe differences in gaze behavior. The seven reviewed studies indicate that stimulus presentations can cause differe

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Rosenman, Stephen J. "Electroconvulsive therapy stimulus titration: Not all it seems." Australian & New Zealand Journal of Psychiatry 52, no. 5 (2017): 410–14. http://dx.doi.org/10.1177/0004867417743793.

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Objective: To examine the provenance and implications of seizure threshold titration in electroconvulsive therapy. Background: Titration of seizure threshold has become a virtual standard for electroconvulsive therapy. It is justified as individualisation and optimisation of the balance between efficacy and unwanted effects. Result: Present day threshold estimation is significantly different from the 1960 studies of Cronholm and Ottosson that are its usual justification. The present form of threshold estimation is unstable and too uncertain for valid optimisation or individualisation of dose.

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AydoÄźdu, Onur, ZĂĽbeyir SarÄ±, Ufuk Saadet Yurdalan, and GĂĽlden Mine Polat. "THE EFFECTS OF AN INNOVATIVE TECHNOLOGY APPLIED AS VIRTUAL REHABILITATION ON CLINICAL OUTCOMES IN ANTERIOR CRUCIATE LIGAMENT INJURY." CBU International Conference Proceedings 5 (September 24, 2017): 933–36. http://dx.doi.org/10.12955/cbup.v5.1047.

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In recent years, many different technologies on virtual rehabilitation have been produced and used in research. However, existing studies are limited because most of them focus on the balancing ability of the elderly or studied stroke patients with same systems. Thus, it is necessary to investigate the effects of a new virtual rehabilitation system in patients with Anterior Cruciate Ligament (ACL) Reconstruction. The purpose of this study was to investigate the effects of a virtual rehabilitation system using a MarVAJEDÂ® system which provides visual and auditory stimulus aimed at educating an

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Kelemen, William L. "Stimulus and Response Expectancies Influence the Cognitive Effects of Cigarettes." Journal of Smoking Cessation 3, no. 2 (2008): 136–43. http://dx.doi.org/10.1375/jsc.3.2.136.

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AbstractThe pharmacological, stimulus expectancy, and response expectancy effects of light cigarettes (0.60 mg yield of nicotine) compared with virtually nicotine-free cigarettes (less than 0.05 mg yield of nicotine) were examined using a between-subjects design. A total of 103 college student smokers completed tests of cognition before and after smoking one type of cigarette, which was evaluated on a number of dimensions. Cigarettes with nicotine were preferred on most dimensions, and stimulus expectancy partially mediated the relationship between nicotine and subjective effects of the cigare

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Spagnol, Simone, Rebekka Hoffmann, Árni Kristjánsson, and Federico Avanzini. "Effects of stimulus order on auditory distance discrimination of virtual nearby sound sources." Journal of the Acoustical Society of America 141, no. 4 (2017): EL375—EL380. http://dx.doi.org/10.1121/1.4979842.

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Higashino, Kana, Mitsuhiko Kimoto, Takamasa Iio, Katsunori Shimohara, and Masahiro Shiomi. "Tactile stimulus is essential to increase motivation for touch interaction in virtual environment." Advanced Robotics 35, no. 17 (2021): 1043–53. http://dx.doi.org/10.1080/01691864.2021.1967780.

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Krom, Guus de. "Consistency and Reliability of Voice Quality Ratings for Different Types of Speech Fragments." Journal of Speech, Language, and Hearing Research 37, no. 5 (1994): 985–1000. http://dx.doi.org/10.1044/jshr.3705.985.

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This study describes a perception experiment in which listeners were asked to rate voice fragments obtained from a variety of speakers on grade, breathiness, and roughness. Four different types of stimuli were presented to each listener. One type of stimulus was based on connected speech fragments; the other three were based on different segments of a sustained vowel, yielding a 200 msec vowel onset stimulus, a 200 msec post-onset stimulus, and a 1000 msec whole vowel stimulus. Analyses focused on the consistency and reliability of grade, roughness, and breathiness ratings. Results indicated t

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Procacci, Nicole M., Kelsey M. Allen, Gael E. Robb, Rebecca Ijekah, Hudson Lynam, and Jennifer L. Hoy. "Context-dependent modulation of natural approach behaviour in mice." Proceedings of the Royal Society B: Biological Sciences 287, no. 1934 (2020): 20201189. http://dx.doi.org/10.1098/rspb.2020.1189.

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Specific features of visual objects innately draw approach responses in animals, and provide natural signals of potential reward. However, visual sampling behaviours and the detection of salient, rewarding stimuli are context and behavioural state-dependent and it remains unclear how visual perception and orienting responses change with specific expectations. To start to address this question, we employed a virtual stimulus orienting paradigm based on prey capture to quantify the conditional expression of visual stimulus-evoked innate approaches in freely moving mice. We found that specific co

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Santika, Beta Bayu, Hyun In Joo, and Jin Yong Jeon. "Effect of visual elements on Indoor soundscape perception in open-plan office." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 1 (2021): 5161–65. http://dx.doi.org/10.3397/in-2021-2988.

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This study examined the effect of changes in visual elements on spatial comfort and work productivity in the aspect of indoor soundscape perception in the open-plan office (OPO) sound environment. Various OPO visual stimuli were simulated using computer software (Unity 3D engine) to change the visual environment by varying variables such as worker density, window ratio, green ratio, and ceiling height. An interactive virtual reality environment was implemented to perform a specific task while experiencing the audio-visual stimuli combining the general OPO noise stimulus and the simulated OPO v

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Hutahaean, Erik Saut H., Yuarini Wahyu Pertiwi, Hema Dayita Pohan, Tiara Anggita Perdini, and Ryan Bastoro. "Efek Tayangan Demonstrasi Sebagai Stimulus Untuk Pengaruhi Aktivitas Denyut Jantung Sebagai Representasi Reaksi Kemarahan." Jurnal Kajian Ilmiah 21, no. 2 (2021): 159–70. http://dx.doi.org/10.31599/jki.v21i2.572.

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Abstract  Heart rate is an indicator to see mental activity in humans. Anger is a mental activity that has been investigated in many previous studies. There have been uses of impressions as a stimulus, but not yet in 360 format (virtual reality). This study is a preliminary study to determine the impact of demonstration impressions on heart rate activity. Impressions are made in two forms; Riot demonstrations and peaceful demonstrations, which were given to the subjects using the Virtual Reality Box. A total of 40 subjects were involved to reject their heartbeats and were given the

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Šalkevičius, Justas, Audronė Miškinytė, and Lukas Navickas. "Cloud Based Virtual Reality Exposure Therapy Service for Public Speaking Anxiety." Information 10, no. 2 (2019): 62. http://dx.doi.org/10.3390/info10020062.

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Public speaking anxiety is commonly treated using cognitive behavioral therapy. During the therapy session, the patient is either asked to vividly imagine and describe the feared stimulus or is confronted with it in the real world. Sometimes, however, it can be hard to imagine the object of fear or to create a controllable environment that contains this stimulus. Virtual reality exposure therapy (VRET) can help solve these problems by placing the patient in a simulated 3D environment. While standalone VRET applications have been investigated for more than 25 years, we are analyzing the viabili

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Rizzo, Albert A., Todd Bowerly, J. Galen Buckwalter, Dean Klimchuk, Roman Mitura, and Thomas D. Parsons. "A Virtual Reality Scenario for All Seasons:The Virtual Classroom." CNS Spectrums 11, no. 1 (2009): 35–44. http://dx.doi.org/10.1017/s1092852900024196.

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ABSTRACTTreatment and rehabilitation of the cognitive, psychological, and motor sequelae of central nervous system dysfunction often relies on assessment instruments to inform diagnosis and to track changes in clinical status. Typically, these assessments employ paper-and-pencil psychometrics, hands-on analog/computer tests, and rating of behavior within the context of real-world functional environments. Virtual reality offers the option to produce and distribute identical “standard” simulation environments in which performance can be measured and rehabilitated. Within such digital scenarios,

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Jing, Zhang, Heang Sotheara, and Mom Virak. "Virtual Community Engagement on Facebook Brand Page." JOURNAL OF INTERNATIONAL BUSINESS RESEARCH AND MARKETING 2, no. 1 (2016): 7–13. http://dx.doi.org/10.18775/jibrm.1849-8558.2015.21.3001.

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The behavior of consumers in virtual community varies according to the types of the community they feel belonged to. The study may not only be conducted to understand what drives consumers to participate in the virtual brand community but may also seek to understand how members could get themselves with the community. The finding indicates that hedonic benefit is the strongest stimulus, which links to higher engagement. Though economic motive and product learning are not found to have a significant effect on sharing and commenting behavior; they are considered inherent. From theoretical contri

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Flach, John M., and John G. Holden. "The Reality of Experience: Gibson's Way." Presence: Teleoperators and Virtual Environments 7, no. 1 (1998): 90–95. http://dx.doi.org/10.1162/105474698565550.

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This paper considers some first principles that might provide a basis for an objective science of experience (presence or immersion). Dimensions that are considered include classical Newtonian measures of the distal stimulus, changes in neural mechanisms reflecting the proximal stimulus, information theoretic measures of the statistical properties of events, and functional properties related to intentions and abilities. Gibson's ecological framework is suggested as a promising functional approach for defining the reality of experience in relation to the problem of designing virtual environment

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Bai, Dongming, Feng Ju, Fei Qi, Yanfei Cao, Yaoyao Wang, and Bai Chen. "A wearable vibrotactile system for distributed guidance in teleoperation and virtual environments." Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 233, no. 2 (2018): 244–53. http://dx.doi.org/10.1177/0954411918821387.

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A novel wearable vibrotactile system is proposed in this article to enhance the performance of teleoperation robot systems. Using a wearable vibrotactile glove, the proposed system guides the operator in the master–slave control through a vibrotactile-visual guidance method. Based on sensory substitution, the vibrotactile-visual combined guidance method combines vibration stimuli and visual feedback to substitute the virtual guidance force. A vibrotactile potential field is constructed in the workspace of the master-operator to calculate the frequency of the vibration stimulus. To provide vibr

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Strauss, R., S. Schuster, and K. G. Götz. "Processing of artificial visual feedback in the walking fruit fly Drosophila melanogaster." Journal of Experimental Biology 200, no. 9 (1997): 1281–96. http://dx.doi.org/10.1242/jeb.200.9.1281.

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A computerized 360 degrees panorama allowed us to suppress most of the locomotion-induced visual feedback of a freely walking fly without neutralizing its mechanosensory system ('virtual open-loop' conditions). This novel paradigm achieves control over the fly's visual input by continuously evaluating its actual position and orientation. In experiments with natural visual feedback (closed-loop conditions), the optomotor turning induced by horizontal pattern motion in freely walking Drosophila melanogaster increased with the contrast and brightness of the stimulus. Conspicuously striped pattern

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SUZUKI, TOHRU, SHUNSUKE SATO, TOHRU OHE, RYOJI SUZUKI, and FUMIHIKO KAJIYA. "ANALYSIS OF THE VIRTUAL ELECTRODE PHENOMENA USING BIDOMAIN MODEL: BASIC CHARACTERISTICS FOR PASSIVE MEMBRANE." Journal of Mechanics in Medicine and Biology 06, no. 04 (2006): 455–75. http://dx.doi.org/10.1142/s0219519406002023.

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The virtual electrode (VE) has been recognized as an important factor for success or failure of cardiac defibrillation. Many researches have been performed to study characteristics of the VE. However, there are some questions which remain unanswered. In this study, we developed a simulator to solve a three-dimensional bidomain model and performed several simulations to elucidate the basic characteristics of VE in a simplified cardiac tissue with passive membrane when a constant unipolar cathodal stimulus was applied. The results showed that for smaller electrodes, VE has a typical dog-bone sha

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Kim, Myung Ja, Choong-Ki Lee, and Timothy Jung. "Exploring Consumer Behavior in Virtual Reality Tourism Using an Extended Stimulus-Organism-Response Model." Journal of Travel Research 59, no. 1 (2018): 69–89. http://dx.doi.org/10.1177/0047287518818915.

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Although virtual reality (VR) is an emerging technology in tourism, little research has been conducted on what factors make consumers visit destinations presented by VR. To address this gap in the literature, this study developed a theoretical framework including authentic experience, cognitive and affective responses, attachment, and visit intention with VR tourism using a stimulus-organism-response (SOR) theory. The results revealed significant impacts of authentic experience on cognitive and affective responses, indicating that authentic experience is an important factor in VR tourism. The

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Kolarik, Andrew J., Brian C. J. Moore, Silvia Cirstea, et al. "Factors Affecting Auditory Estimates of Virtual Room Size: Effects of Stimulus, Level, and Reverberation." Perception 50, no. 7 (2021): 646–63. http://dx.doi.org/10.1177/03010066211020598.

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When vision is unavailable, auditory level and reverberation cues provide important spatial information regarding the environment, such as the size of a room. We investigated how room-size estimates were affected by stimulus type, level, and reverberation. In Experiment 1, 15 blindfolded participants estimated room size after performing a distance bisection task in virtual rooms that were either anechoic (with level cues only) or reverberant (with level and reverberation cues) with a relatively short reverberation time of T60 = 400 milliseconds. Speech, noise, or clicks were presented at dista

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Mascher, Thorsten, John D. Helmann, and Gottfried Unden. "Stimulus Perception in Bacterial Signal-Transducing Histidine Kinases." Microbiology and Molecular Biology Reviews 70, no. 4 (2006): 910–38. http://dx.doi.org/10.1128/mmbr.00020-06.

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SUMMARY Two-component signal-transducing systems are ubiquitously distributed communication interfaces in bacteria. They consist of a histidine kinase that senses a specific environmental stimulus and a cognate response regulator that mediates the cellular response, mostly through differential expression of target genes. Histidine kinases are typically transmembrane proteins harboring at least two domains: an input (or sensor) domain and a cytoplasmic transmitter (or kinase) domain. They can be identified and classified by virtue of their conserved cytoplasmic kinase domains. In contrast, the

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Choi, Kang-min, Seonghun Park, and Chang-Hwan Im. "Comparison of Visual Stimuli for Steady-State Visual Evoked Potential-Based Brain-Computer Interfaces in Virtual Reality Environment in terms of Classification Accuracy and Visual Comfort." Computational Intelligence and Neuroscience 2019 (July 1, 2019): 1–7. http://dx.doi.org/10.1155/2019/9680697.

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Recent studies on brain-computer interfaces (BCIs) based on the steady-state visual evoked potential (SSVEP) have demonstrated their use to control objects or generate commands in virtual reality (VR) environments. However, most SSVEP-based BCI studies performed in VR environments have adopted visual stimuli that are typically used in conventional LCD environments without considering the differences in the rendering devices (head-mounted displays (HMDs) used in the VR environments). The proximity between the visual stimuli and the eyes in HMDs can readily cause eyestrain, degrading the overall

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