Are the objects and events that take place in Virtual Reality genuinely real? Those who answer this question in the affirmative are realists, and those who answer in the negative are irrealists. In this paper we argue against the realist position, as given by Chalmers (2017), and present our own preferred irrealist account of the virtual. We start by disambiguating two potential versions of the realist position—weak and strong— and then go on to argue that neither is plausible. We (...) then introduce a Waltonian variety of ictionalism about the virtual, arguing that this sort of irrealist approach avoids the problems of the realist positions, fits with a unifying theory of representational works, and offers a better account of the phenomenology of engaging in virtual experiences. (shrink)

The history of humankind is full of examples that indicate a constant desire to make human beings more moral. Nowadays, technological breakthroughs might have a significant impact on our moral character and abilities. This is the case of Virtual Reality (VR) technologies. The aim of this paper is to consider the ethical aspects of the use of VR in enhancing empathy. First, we will offer an introduction to VR, explaining its fundamental features, devices and concepts. Then, we will approach (...) the characterization of VR as an “empathy machine,” showing why this medium has aroused so much interest and why, nevertheless, we do not believe it is the ideal way to enhance empathy. As an alternative, we will consider fostering empathy-related abilities through virtual embodiment in avatars. In the conclusion, however, we will, we will examine some of the serious concerns related to the ethical relevance of empathy and will defend the philosophical case for a reason-guided empathy, also suggesting specific guidelines for possible future developments of empathy enhancement projects through VR embodied experiences. (shrink)

Much of the excitement about virtual reality and its potential for things like entertainment, art, education, and activism is its ability to generate experiences that are powerfully immersive. However, discussions of VR tend to invoke the notion of immersive experience without subjecting it to closer scrutiny; and discussions often take it for granted that immersive experience is a single unified phenomenon. Against this, we argue that there are four distinct types or aspects of immersive experience that should be distinguished: (...) representational immersion, which corresponds roughly to what is sometimes called “psychological presence”; participatory immersion, which is related to the interactive aspects of VR experience; affective immersion, which has to do with the subject’s emotional relation to the experience; and narrative immersion, which captures the phenomenon of being caught up in the flow of events experienced. We argue that this four-way distinction helps us understand the powerfully immersive character of VR, while also recognizing its continuity with the immersion we experience with media such as novels, films, and music. We also argue that the account of immersion we offer here lets us better understand the connection between VR and empathy, charting a middle course between extreme enthusiasts who view VR as the ultimate “empathy machine” and extreme skeptics who argue that this attitude is misguided. (shrink)

In developed countries, companies are now substantially reliant on the skills and abilities of their leaders to tackle a variety of complex issues. There is a growing consensus that leadership development training and assessment methods should adopt more holistic methodologies, including those associated with the emotional and neuroendocrine aspects of learning. Recent research into the assessment of leadership competencies has proposed the use of objective methods and measurements based on neuroscience. One of the challenges to be faced in the development (...) of a performance-based methodology to measure leadership skills is how to generate real-life situations with triggers that allow us to study management competencies under controlled laboratory conditions. A way to address this question is to take advantage of virtual environments to recreate real-life situations that might arise in performance-based assessments. We propose virtual reality (VR) as a very promising tool to observe various leadership related behavioral patterns during dynamic, complex and realistic situations. By seamlessly embedding assessment methods into virtual learning environments, VR can provide objective assessment methods with high ecological validity. VR also holds unlimited opportunities for leadership training providing subjects with intelligent tutoring systems that adapts situations in real time according to the observed behaviors. (shrink)

I discuss how virtual reality can be used to acquire self-knowledge. Lawlor (Philos Phenomenol Res 79(1):47–75, 2009) and Cassam (Vices of the mind: from the intellectual to the political. OUP, Oxford, 2014) develop inferential accounts of self-knowledge in which one can use imagination to acquire self-knowledge. This is done by actively prompting imaginary scenarios and observing one’s reactions to those scenarios. These reactions are then used as the inferential basis for acquiring self-knowledge. I suggest that the imaginary scenarios can (...) be in principle replaced with scenarios in virtual reality in a way that still provides an inferential basis for self-knowledge. Instead of internal prompting in imagination, I call this external prompting in virtual reality. I discuss the advantages and disadvantages of external prompting. On one hand, external prompting avoids some of the common biases that can intervene with internal prompting in imagination. On the other hand, external prompting comes with some challenges of its own. External prompting might be more time-consuming and might be open to a game-like approach of the agent leading to a different sort of distortion that gets in the way of self-knowledge. I suggest that these are practical challenges, but nevertheless, external prompting seems worthwhile for self-knowledge that is otherwise especially difficult to acquire. (shrink)

The paper discusses the thesis of virtual realism presented by David Chalmers in his paper “The Virtual and the Real” (2017). Here, I suggest an even stronger version of the claim that I call “virtual physicalism”. According to this view, virtual objects are not only real but physical as they are identical to the physical states of computers that run VR software. I suggest that virtual objects should have a similar ontological status to toys—they should be treated as models or (...) simplifications of ordinary objects. Just like toys, virtual objects can sometimes be good enough to be used instead of their ordinary counterparts. In these cases, virtual objects start to be treated as instantiations of the same kind. In the last part of the paper, I use Johan Huizinga’s notion of a “magic circle” to suggest how different objects could be successfully “virtualized”, that is, moved into a digital realm while remaining objects of the same kind as their non-virtual counterparts. I suggest this will happen once virtual reality becomes permanent and causally connected with non-virtual reality. I finish the paper by looking at examples of natural kind objects and individuals, which seem to be the hardest cases for successful virtualization. (shrink)

A virtual reality module that incorporates a training room (for subjects to become accommodated to virtual environments) and VR translations of Philippa Foot's Trolley Problem and Judith Thomson's Violinist thought experiment. -/- These modules are free to use for classroom or research/x-phi purposes. This set of modules is optimized for the HTC Vive. If you have an Oculus Rift, please see our VR modules optimized for the rift. -/- *Requires an HTC Vive and VR capable computer. To access the (...) simulation, uncompress the .zip folder and run the executable (.exe) file. (shrink)

The prelims comprise: Introduction Virtual Reality Virtual Metaphysics Virtual Identity Economic Reality.

Erick J. Ramirez, Miles Elliott and Per‑Erik Milam (2021) have recently claimed that using Virtual Reality (VR) as an educational nudge to promote empathy is unethical. These authors argue that the influence exerted on the participant through virtual simulation is based on the deception of making them believe that they are someone else when this is impossible. This makes the use of VR for empathy enhancement a manipulative strategy in itself. In this article, we show that Ramirez et al.’s (...) ethical rejection of empathy enhancement through VR is based on confusion. First, we show that this misunderstanding stems from the conception of empathy-enhancing simulations solely as failed attempts at “being someone else,” along with ignoring the crucial difference between the psychological perspective-taking processes of imagine-other and imagine-self. Then, having overcome that misconception, we argue that the ethical misgivings about the use of VR to promote empathy should disappear and that these projects have greater potential for behavioural change than purely sympathy-focused interventions. (shrink)

It is common in the cognitive and computational sciences to regard virtual reality (VR) as composed of illusory experiences, given its immersive character. In this paper, we adopt an ecological-enactive perspective on cognition (Sect. 3) to evaluate the nature of VR and one’s engagement with it. Based on a post-cognitivist conception of illusion, we reject the commonly held assumption that virtual reality experiences (VREs) are illusory (Sect. 4). Our positive take on this issue is that VR devices, like (...) other technological devices, can be embodied during use, which is why they can be the source of experiences (Sect. 5). We then propose a new concept to interpret VREs, namely, _allusion_, which means that the subject acts _as if_ the virtual experiences are real (Sect. 6). This kind of engagement has a volitional aspect, which is evident in the onboarding of VR devices and which allows us to distinguish VREs from other experiences. We conclude that, even though we have experiences that afford certain interactions in VR, the strong continuity between cognitive and biological processes is not sustained therein. This characterizes a difference of kind—given the current state of technology—between VREs and fully fledged cognitive states, which nevertheless allows for constrained experimentation in cognitive science. (shrink)

Is virtual reality the latest grand narrative that humanity has produced? This book attempts to disentangle the common characteristics of human reality and posthuman virtual reality by examining discourses on psychoanalysis, gene-technology, globalization, and contemporary art.

It is commonly assumed that a virtual life would be less meaningful (perhaps even meaningless). As virtual reality technologies develop and become more integrated into our everyday lives, this poses a challenge for those that care about meaning in life. In this chapter, it is argued that the common assumption about meaninglessness and virtuality is mistaken. After clarifying the distinction between two different visions of virtual reality, four arguments are presented for thinking that meaning is possible in virtual (...) reality. Following this, four objections are discussed and rebutted. The chapter concludes that we can be cautiously optimistic about the possibility of meaning in virtual worlds. (shrink)

A virtual reality translation of Philippa Foot's original "Trolley Problem." These modules are free to download and use in the classroom and for research/x-phi purposes. -/- *Requires an Oculus Rift or HTC Vive and VR capable computer. To open the files, uncompress the downloaded .zip folder and run the executable (.exe) file.

A virtual reality translation of Judith Thomson's Violinist Analogy. These modules are free to download and use in the classroom and for research/x-phi purposes. -/- *Requires an Oculus Rift or HTC Vive and VR capable computer. To open the files, uncompress the downloaded .zip folder and run the executable (.exe) file.

Are virtual objects real? I will claim that the question sets us up for the wrong type of conclusion: Chalmers (2017) argues that a virtual calculator (like other entities) is a real calculator when it is “organizationally invariant” with its non-virtual counterpart—when it performs calculation. However, virtual reality and games are defined by the fact that they always selectively implement their source material. Even the most detailed virtual car will still have an infinite range of details which are missing (...) (gas, engines, pistons, fuel, chemical reactions, molecules, atoms). This means that even the most detailed virtual object will still have fictional aspects. Rather than argue that virtual objects are, or aren’t, real, it is preferable to think of overlaps and continuities between the fictional and the real, where even the most painstakingly detailed virtual reality implementation of a non-virtual object is still art: a human process of selection and interpretation. Virtual reality should therefore not be philosophically understood just as a technological implementation on a trajectory to perfection, but as a cultural artifact which derives its value in part from its simplification and difference from its source material. (shrink)

This is a virtual reality simulation that imagines its subject as emerging from a long stint in Robert Nozick's "Experience Machine." The simulation is an interview (with many branching paths) meant to gauge the subject's views on the metaphysics of virtual objects and the ethics of virtual actions. It draws heavily from the published work of David Chalmers, Mark Silcox, Jon Cogburn, Morgan Luck, and Nick Bostrom. *Requires an Oculus Rift (or Rift-S) or HTC Vive and a VR capable (...) computer. To open the files, uncompress the downloaded .zip folder and run the executable (.exe) file. **This module is made possible due to an APA Small Grant and a grant from Oculus Education. (shrink)

A virtual reality translation of Robert Nozick's "Experience Machine" thought experiment from his "Anarchy, State, and Utopia" (1974). These modules are free to download and use in the classroom and for research/x-phi purposes. NPCs are randomized for gender during startup of each run. *Requires an Oculus Rift or HTC Vive and VR capable computer. To open the files, uncompress the downloaded .zip folder and run the executable (.exe) file. -/- V1.2 Fixed missing projector video footage during experience machine sales (...) pitch. (shrink)

Movement abnormalities are prevalent across all stages of schizophrenia contributing to poor social functioning and reduced quality of life. To date, treatments are scarce, often involving pharmacological agents, but none have been shown to improve movement abnormalities effectively. Virtual reality (VR) is a tool used to simulate virtual environments where behavioral performance can be quantified safely across different tasks while exerting control over stimulus delivery, feedback and measurement in real time. Sensory information is transmittedviaa head mounted display allowing users (...) to directly interact with virtual objects and bodies using gestures and body movements in the real world to perform different actions, permitting a sense of immersion in the simulated virtual environment. Although, VR has been widely used for successful motor rehabilitation in a variety of different neurological domains, none have been exploited for motor rehabilitation in schizophrenia. The objectives of this article are to review movement abnormalities specific to schizophrenia, and how VR can be utilized to restore and improve motor functioning in patients with schizophrenia. Constructing VR-mediated motor-cognitive interventions that can help in retaining and transferring the learned outcomes to real life are also discussed. (shrink)

Much of the excitement and concern with virtual reality (VR) has to do with the impact of virtual experiences on our moral conduct in the “real world”. VR technologies offer vivid simulations that may impact prosocial dispositions and abilities or emotions related to morality. Whereas some experiences could facilitate particular moral behaviors, VR could also inculcate bad moral habits or lead to the surreptitious development of nefarious moral traits. In this chapter, I offer an overview of the ethical debate (...) about using VR to improve morality. I start by clarifying the rationale of using VR for good, drawing on moral enhancement literature, branches of the science of morality, and the specific potentials of this technology. Then, I will briefly focus on three prominent domains of socio-moral improvement: the use of VR for enhancing empathy, reducing implicit biases, and improving pro-environmental behavior. After that, I shall consider three ethical objections to the enthusiasm for using VR in order to improve human morality. Finally, I will recapitulate the main points of the chapter and provide a few concluding thoughts on future avenues of discussion on how VR can make us act (morally) better. (shrink)

This article raises the question of how the ontological status of virtual objects bears on their intrinsic value. If virtual objects are unreal or less real than physical objects, does it mean that they will have less intrinsic value? If they have intrinsic value, what are the explanations for this value, and how do they relate to the ontological status of the virtual objects? First, the article reviews recent work concerning the ontological status of virtual reality and virtual objects. (...) Second, it argues that in some cases the ontological status of virtual objects does undermine the value placed in them, in that the objects can fail to have the properties that ground the value attributions made to them, while in other cases their ontological status is not important. Finally, the article relates the grounding of value attributions to philosophical theories of value, in particular, perfectionism and hedonism. (shrink)

In this paper I develop the thesis that dreams are essential to an understanding of waking consciousness. In the first part I argue in opposition to the philosophers Malcolm and Dennett that empirical evidence now shows dreams to be real conscious experiences. In the second part, three questions concerning consciousness research are addressed. (1) How do we isolate the system to be explained (consciousness) from other systems? (2) How do we describe the system thus isolated? (3) How do we reveal (...) the mechanisms on which this system is based? I suggest that empirical dream research combined with other empirical approaches can help us to sketch answers to all of these questions. I argue that the subjective form of dreams reveals the subjective, macro-level form of consciousness in general and that both dreams and the everyday phenomenal world may be thought of as constructed “virtual realities”. A major task for empirical consciousness research is to find out the mechanisms which bind this experienced world into a coherent whole. (shrink)

Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.

Understanding how people behave when facing hazardous situations, how intrinsic and extrinsic factors influence the risk taking (RT) decision making process and to what extent it is possible to modify their reactions externally, are questions that have long interested academics and society in general. In the spheres of Occupational Safety and Health (OSH), the military, finance and sociology, this topic has multidisciplinary implications because we all constantly face risk taking situations. Researchers have hitherto assessed risk taking profiles by conducting questionnaires (...) prior to and after the presentation of stimuli; however, this can lead to the production of biased, non-realistic, risk taking profiles. This is due to the reflexive nature of choosing an answer in a questionnaire, which is remote from the reactive, emotional and impulsive decision making processes inherent to real, risky situations. One way to address this question is to exploit VR capabilities to generate immersive environments that recreate realistic seeming but simulated hazardous situations. We propose VR as the next-generation tool to study risk taking processes, taking advantage of the big four families of metrics which can provide objective assessment methods with high ecological validity: the real-world risks approach (high presence VR environments triggering real-world reactions), embodied interactions (more natural interactions eliciting natural behaviours), stealth assessment (unnoticed real-time assessments offering efficient behavioural metrics) and physiological real-time measurement (physiological signals avoiding subjective bias). Additionally, VR can provide an invaluable tool, after the assessment phase, to train in skills related to risk taking due to its transferability to real-world situations. (shrink)

This book examines the ethics of virtual reality technologies. New forms of virtual reality are emerging in society, not just from low-cost gaming headsets, or augmented reality apps on phones, but from simulated “deep fake” images and videos on social media. This book subjects the new VR technological landscape to ethical scrutiny: assessing the benefits, risks and regulatory practices that shape it. Though often associated with gaming, education and therapy, VR can also be used for moral enhancement. (...) Journalists, artists, philanthropic and non-governmental organisations are using VR films, games and installations to stimulate user empathy to marginalised peoples through a combination of immersion, embodiment and persuasion. This book critically assesses the use of VR for empathy arousal and pro-social behaviour change, culminating in the development of a VR “ethical tool” – a device to facilitate reflective ethical judgement. Drawing upon the pragmatist philosophy of John Dewey, virtual reality is reshaped as “dramatic rehearsal”. This book explains how a combination of immersive environment-building, moral imagination, choice architecture and reflective engagement can stimulate a future-focused and empathic ethics for users of the technology. (shrink)

Realistic uses of Virtual Reality technology closely integrate user training on virtual objects with VR-assisted user interactions with real objects. This paper shows how the Interactive Theory of Perception may be extended to cover such cases. Virtual objects are explained as concrete models that have an inner generation mechanism, and the ITP is used to explain how VR users can both perceive such local CMs, and perceptually represent remote real objects. Also, concepts of modeling and representation are distinguished. The (...) paper concludes with suggestions as to how the ITP methodology developed here could be extended to iconic external representations and models generally. (shrink)

The combination of COVID-19 and the Fourth Industrial Revolution has brought an unprecedented new normal, which has affected all aspects of human life, including religious activities. As a consequence, church mission and different ministries have found themselves more dependent on media. Furthermore, the convergent digital technology continually develops augmented reality and virtual reality, in which churches are planted and continue to carry out their mission and ministries. Although virtual reality churches are new mission frontiers in the digital (...) age, there are several theological issues from the conventional perspective of church ministry and mission. This paper aims to address the controversial theological issues and reflect on them from an ecclesiological perspective to explore a theological possibility to overcome the issues and to justify their mission and ministries in virtual reality. (shrink)

The economic explanation of individual behaviour, even behaviour outside the traditional province of the market, projects a distinctively economic image on the minds of the agents involved. It suggests that, in regard to motivation and rationality, they conform to the profile of homo economicus. But this suggestion, by many lights, flies in the face of common sense; it conflicts with our ordinary assumptions about how we each feel and think in most situations, certainly most non-market situations, and about how that (...) feeling and thought manifests itself in action. What, then, to conclude? That common sense is deeply in error on these matters? That, on the contrary, economics is in error—at least about non-market behaviour—and common sense sound? Or that some form of reconciliation is available between the two perspectives? This paper is an attempt to defend a conciliationist position. (shrink)

Our access to computer-generated worlds changes the way we feel, how we think, and how we solve problems. In this review, we explore the utility of different types of virtual reality, immersive or non-immersive, for providing controllable, safe environments that enable individual training, neurorehabilitation, or even replacement of lost functions. The neurobiological effects of virtual reality on neuronal plasticity have been shown to result in increased cortical gray matter volumes, higher concentration of electroencephalographic beta-waves, and enhanced cognitive performance. (...) Clinical application of virtual reality is aided by innovative brain-computer interfaces, which allow direct tapping into the electric activity generated by different brain cortical areas for precise voluntary control of connected robotic devices. Virtual reality is also valuable to healthy individuals as a narrative medium for redesigning their individual stories in an integrative process of self-improvement and personal development. Future upgrades of virtual reality-based technologies promise to help humans transcend the limitations of their biological bodies and augment their capacity to mold physical reality to better meet the needs of a globalized world. (shrink)

The subject of the article is the philosophical and cultural methodology of digital "virtual reality", comparing the declarations of developers with the practical possibilities and social consequences of using such technologies. The developers presented projects of online digital content services for all five senses using special equipment (glasses, headphones, interactive gloves, joysticks, costumes, printers of smells and tastes, etc.). It was assumed that virtual reality would surpass the reliability of previous multimedia content and interactive computer games, and the (...) persuasiveness and attractiveness of traditional technical means of art and the press. Failure to fulfill these promises has led to significant losses since 2022 for leading companies developing digital virtual reality technologies Meta (recognized by the court as an extremist organization on 03/21/2022, activity is limited in the territory of the Russian Federation), Microsoft HapticLinks, Cave, AlloSphere, Teslasuit, VRealizer. There was a need to assess how and to what extent the methodology used and the predicted capabilities of digital virtual reality were correct. Philosophical and cultural analysis as a research method reveals: the developers of digital virtual reality promised the methodologically impossible, reducing human perception to the "sum" of the external "five senses" out of connection with the "self", inner sensitivity, bodily self-perceptions. A person is only partially amenable to algorithmized digital interaction; a critical barrier to digital virtuality is the socio-cultural identity of society and personality. The novelty of the results of the analysis lies in the conclusion: digital virtual reality in many respects is fundamentally inferior in effectiveness to traditional technical means of sensory and emotional impact and cognition, used both for creative and destructive purposes. In terms of creative potential, digital virtual reality is inferior to the technical means of art, science, education, upbringing, etc., and in terms of destructive capabilities, it is already used in the press and other mass communications technologies for manipulating public and individual consciousness, as well as psychotropic substances that cause addiction. National regulation of the development of digital "virtual reality" is recommended, aimed at protecting and developing the socio-cultural identity of Russian citizens and society, as well as for cognitive and educational purposes. It is recommended to limit the remote use of such developments to trusted domestic Internet services. (shrink)

Psychotherapy with the use of psychedelic substances, including psilocybin, lysergic acid diethylamide (LSD), ketamine, and 3,4-methylenedioxymethamphetamine (MDMA), has demonstrated promise in treatment of post-traumatic stress disorder (PTSD), anxiety, addiction, and treatment-resistant depression. Psychedelic-assisted psychotherapy (PP) represents a unique psychopharmacological model that leverages the profound effects of the psychedelic experience. That experience is characterized by strong dependency on two key factors: participant mindset and the therapeutic environment. As such, therapeutic models that utilize psychedelics reflect the need for careful design that promotes (...) an open, flexible, trusting mindset and a supportive setting. To meet this need, the PP model is increasingly supplemented by auxiliary methods, including meditation, relaxation, visualization or spiritual practices. We suggest virtual reality (VR) as a full-spectrum tool able to capitalize on and catalyze the innately therapeutic aspects of the psychedelic experience, such as detachment from familiar reality, alteration of self-experience, augmentation of sensory perception and induction of mystical-type experiences. This is facilitated by VR’s evidenced capacity to: aid relaxation and reduce anxiety; buffer from external stimuli; promote a mindful presence; train the mind to achieve altered states of consciousness (ASC); evoke mystical states; enhance therapeutic alliance and encourage self-efficacy. While these unique VR features appear promising, VR’s potential role in PP remains speculative due to lack of empirical evidence on the combined use of VR and PP. Given the increased commercial interest in this synergy there is an urgent need to evaluate this approach. We suggest specific VR models and their role within PP protocols to inspire future direction in scientific research, and provide a list of potential disadvantages, side effects and limitations that need to be carefully considered. These include sensory overstimulation, cyber-sickness, triggering memories of past traumatic events as well as distracting from the inner experience or strongly influencing its contents. A balanced, evidence-based approach may provide continuity across all phases of treatment, support transition into and out of an ASC, deepen acute ASC experiences including mystical states and enrich the psychotherapeutic process of integration. We conclude that the potential application of VR in modulating psychedelic-assisted psychotherapy demands further exploration and an evidence-based approach to both design and implementation. (shrink)

The economic explanation of individual behaviour, even behaviour outside the traditional province of the market, projects a distinctively economic image on the minds of the agents involved. It suggests that, in regard to motivation and rationality, they conform to the profile of homo economicus. But this suggestion, by many lights, flies in the face of common sense; it conflicts with our ordinary assumptions about how we each feel and think in most situations, certainly most non-market situations, and about how that (...) feeling and thought manifests itself in action. What, then, to conclude? That common sense is deeply in error on these matters? That, on the contrary, economics is in error—at least about non-market behaviour—and common sense sound? Or that some form of reconciliation is available between the two perspectives? This paper is an attempt to defend a conciliationist position. (shrink)

As one of the most widely used methods in deep learning technology, convolutional neural networks have powerful feature extraction capabilities and nonlinear data fitting capabilities. However, the convolutional neural network method still has disadvantages such as complex network model, too long training time and excessive consumption of computing resources, slow convergence speed, network overfitting, and classification accuracy that needs to be improved. Therefore, this article proposes a dense convolutional neural network classification algorithm based on texture features for images in virtual (...) reality videos. First, the texture feature of the image is introduced as a priori information to reflect the spatial relationship between pixels and the unique characteristics of different types of ground features. Second, the grey level cooccurrence matrix is used to extract the grey level correlation features of the image in space. Then, Gauss Markov Random Field is used to establish the statistical correlation characteristics between neighbouring pixels, and the extracted GLCM-GMRF texture feature and image intensity vector are combined. Finally, based on DenseNet, an improved shallow layer dense convolutional neural network is proposed, which can compress network parameters and improve the feature extraction ability of the network. The experimental results show that compared with the current classification method, this method can effectively suppress the influence of coherent speckle noise and obtain better classification results. (shrink)

In order to take advantage of the potential offered by the medium of virtual reality, it will be essential to develop an understanding of how to maximize the desirable experience of ‘presence’ in a virtual space (‘being there’), and how to minimize the undesirable feeling of ‘cybersickness’ (a constellation of discomfort symptoms experienced in virtual reality). Although there have been frequent reports of a possible link between the observer’s sense of presence and the experience of bodily discomfort in (...) virtual reality, the amount of literature that discusses the nature of the relationship is limited. Recent research has underlined the possibility that these variables have shared causes, and that both factors may be manipulated with a single approach. This review paper summarizes the concepts of presence and cybersickness and highlights the strengths and gaps in our understanding about their relationship. We review studies that have measured the association between presence and cybersickness, and conclude that the balance of evidence favours a negative relationship between the two factors which is driven principally by sensory integration processes. We also discuss how system immersiveness might play a role in modulating both presence and cybersickness. However, we identify a serious absence of high-powered studies that aim to reveal the nature of this relationship. Based on this evidence we propose recommendations for future studies investigating presence, cybersickness, and other related factors. (shrink)

Virtual reality constitutes an alternative, effective, and increasingly utilized treatment option for people suffering from psychiatric and neurological illnesses. However, the currently available VR simulations provide a predetermined simulative framework that does not take into account the unique personality traits of each individual; this could result in inaccurate, extreme, or unpredictable responses driven by patients who may be overly exposed and in an abrupt manner to the predetermined stimuli, or result in indifferent, almost non-existing, reactions when the stimuli do (...) not affect the patients adequately and thus stronger stimuli are recommended. In this study, we present a VR system that can recognize the individual differences and readjust the VR scenarios during the simulation according to the treatment aims. To investigate and present this dynamically adaptive VR system we employ an Anxiety Disorder condition as a case study, namely arachnophobia. This system consists of distinct anxiety states, aiming to dynamically modify the VR environment in such a way that it can keep the individual within a controlled, and appropriate for the therapy needs, anxiety state, which will be called “desired states” for the study. This happens by adjusting the VR stimulus, in real-time, according to the electrophysiological responses of each individual. These electrophysiological responses are collected by an external electrodermal activity biosensor that serves as a tracker of physiological changes. Thirty-six diagnosed arachnophobic individuals participated in a one-session trial. Participants were divided into two groups, the Experimental Group which was exposed to the proposed real-time adaptive virtual simulation, and the Control Group which was exposed to a pre-recorded static virtual simulation as proposed in the literature. These results demonstrate the proposed system’s ability to continuously construct an updated and adapted virtual environment that keeps the users within the appropriately chosen state for approximately twice the time compared to the pre-recorded static virtual simulation. Thus, such a system can increase the efficiency of VR stimulations for the treatment of central nervous system dysfunctions, as it provides numerically more controlled sessions without unexpected variations. (shrink)

Globalization and informatization are reshaping human life and social behaviors. The purpose is to explore the worldwide strategies to cultivate international talents with a global vision. As a global language with the largest population, English, and especially its learning effect, have always been the major concerns of scholars and educators. This work innovatively studies the combination of immersion-based English teaching with virtual reality technology. Then, based on the experimental design mode, 106 students from a Chinese school were selected for (...) a quasi-experimental study for 16 weeks. The collected data were analyzed by computer statistical software, and hypotheses are verified. The results showed that there is a significantly positive correlation between VR and immersion-based language teaching. There is a significantly positive correlation between immersion-based language teaching and academic achievement, and VR is positively correlated with learning outcome. Compared with other state-of-art research methods, this work modifies the students’ oral test through the analysis and comparison with the system database, and the students’ learning effect is greatly improved. Finally, some suggestions are put forward according to the research results to provide an experimental reference for English teachers and future linguistics teaching. (shrink)

Immersive virtual environments can produce a state of behaviour referred to as ‘presence’, during which the individual responds to the virtual environment as if it were real. Presence can be arranged to scientifically evaluate and affect our consciousness within a controlled virtual environment. This phenomenon makes the use of virtual environments amenable to existing and in-development forms of therapy for various conditions. Delirium in the intensive care unit (ICU) is one such condition for which virtual reality (VR) technology has (...) not been evaluated to date. We are currently assessing the feasibility and utility of a delirium prevention and treatment system, which implements VR to improve quality of sleep, reduce pain, lower usage of sedatives, and stimulate cognition. The proposed system will consist of 3-axis wearable accelerometers, 6-DOF position trackers, a VR system and apps designed to promote sleep quality and mindfulness. Our a priori hypothesis is that our VR therapy system would lower the occurrence of delirium in patients admitted to ICUs. (shrink)

While social interaction and play in a VR environment are becoming ever more popular, little is known about how social VR games affect users. The purpose of this study was to elucidate the role of several contingent factors in social VR games by modeling the relationships between involvement, well-being, depression, self-esteem, and social connectedness. A conditional process-moderated mediation model of the measured variables was analyzed with 220 pieces of collected data. The result showed that: the direct effect of involvement on (...) well-being was significant, and the index of moderated mediation involving depression, self-esteem, and social connectedness was significant. We conclude that high levels of involvement in social VR games by socially isolated users with low self-esteem can negatively affect their well-being. The findings of this study contribute in several ways to our understanding of the effect of social VR games upon users and provide important practical implications. (shrink)

Unilateral spatial neglect is a disorder characterized by the failure to report, respond to, or orient toward the contralateral side of space to a brain lesion. Current assessment methods often fail to discover milder forms, cannot differentiate between unilateral spatial neglect subtypes and lack ecological validity. There is also a need for treatment methods that target subtypes. Immersive virtual reality systems in combination with eye-tracking have the potential to overcome these shortcomings, by providing more naturalistic environments and tasks, with (...) sensitive and detailed measures. This systematic review examines the state of the art of research on these technologies as applied in the assessment and treatment of USN. As we found no studies that combined immersive VR and ET, we reviewed these approaches individually. The review of VR included seven articles, the ET review twelve. The reviews revealed promising results. All included studies found significant group-level differences for several USN measures. In addition, several studies found asymmetric behavior in VR and ET tasks for patients who did not show signs of USN in conventional tests. Particularly promising features were multitasking in complex VR environments and detailed eye-movement analysis. No VR and only a few ET studies attempted to differentiate USN subtypes, although the technologies appeared appropriate. One ET study grouped USN participants using individual heatmaps, and another differentiated between subtypes on drawing tasks. Regarding ecological validity, although no studies tested the prognostic validity of their assessment methods, VR and ET studies utilized naturalistic tasks and stimuli reflecting everyday situations. Technological characteristics, such as the field of view and refresh rate of the head-mounted displays, could be improved, though, to improve ecological validity. We found no studies that utilized VR or ET technologies for USN treatment up until the search date of the 26th of February 2020. In conclusion, VR-ET-based systems show great potential for USN assessment. VR-ET holds great promise for treatment, for example, by monitoring behavior and adapting and tailoring to the individual person’s needs and abilities. Future research should consider developing methods for individual subtypes and differential diagnostics to inform individual treatment programs. (shrink)

An emerging line of research in bioethics questions whether enhanced love is less significant or valuable than otherwise, where "enhanced love" generally refers to cases where drugs (e.g., oxytocin, etc.) are relied on to maintain romantic relationships. Separate from these debates is a recent body of literature on the philosophy and psychology of "Virtual Reality (VR) dating," where romantic relationships are developed and sustained in a way that is mediated by VR. Interestingly, these discussions have proceeded largely independently from (...) each other. This article considers whether and to what extent philosophical arguments leveled against the value of enhanced love in the pharmacological case extend to cases where loving relationships are technologically mediated via VR rather than pharmacologically mediated. It will be argued that, while some worries about the pharmacological case do not extend over in a way that will be particularly problematic for VR, two (of the four arguments considered) are more prima facie serious. I conclude by suggesting why even these stronger argument strategies are not insurmountable and, thus, that there is reason to be cautiously optimistic that VR-mediated love can largely withstand variations on the bioconservative critiques that target pharmacologically enhanced love. (shrink)

The State of Emergency declaration in Japan due to the COVID-19 pandemic affected many aspects of society in the country, much like the rest of the world. One sector that felt its disruptive impact was education. As educational institutions raced to implement emergency remote teaching (ERT) to continue providing the learning needs of students, some have opened to innovative interventions. This paper describes a case of ERT where Filipino vocabulary was taught to a class of Japanese students taking Philippine Studies (...) in a Japanese university using a cognitive innovation based on virtual reality, an immersive technology often researched for immersion and presence. Students were divided into three groups to experience six lessons designed around virtual reality photo-based tours at different immersion levels. While the effect of immersion on satisfaction was not found to be statistically significant, presence and satisfaction were found to be correlated. Despite challenges that were encountered, benefits like enjoyment, increased engagement, and perceived learning were reported by the students. Our findings exemplify how emerging multisensory technologies can be used to enhance affective and cognitive dimensions of human experience while responding to gaps created by the spatial limitations of remote learning. (shrink)

The use of head-mounted displays (HMD) for virtual reality (VR) application-based purposes including therapy, rehabilitation, and training is increasing. Despite advancements in VR technologies, many users still experience sickness symptoms. VR sickness may be influenced by technological differences within HMDs such as resolution and refresh rate, however, VR content also plays a significant role. The primary objective of this systematic review and meta-analysis was to examine the literature on HMDs that report Simulator Sickness Questionnaire (SSQ) scores to determine the (...) impact of content. User factors associated with VR sickness were also examined. A systematic search was conducted according to PRISMA guidelines. Fifty-five articles met inclusion criteria, representing 3,016 participants (mean age range 19.5-80; 41% female). Findings show gaming content recorded the highest total SSQ mean 34.26 (95%CI 29.57-38.95). VR sickness profiles were also influenced by visual stimulation, locomotion and exposure times. Older samples (mean age ≥35 years) scored significantly lower total SSQ means than younger samples, however, these findings are based on a small evidence base as a limited number of studies included older users. No sex differences were found. Across all types of content, the pooled total SSQ mean was relatively high 28.00 (95%CI 24.66-31.35) compared with recommended SSQ cut-off scores. These findings are of relevance for informing future research and the application of VR in different contexts. (shrink)

In this proof-of-concept study, we assessed the potential for immersive virtual reality to measure transfer following strategic memory training, and whether efficacy and transfer are increased when training is complemented by practice in an immersive virtual environment. Forty older adults with subjective memory complaints were trained with the method of loci. They were randomized to either a condition where they practiced the strategy in VR or a control condition where they were familiarized with VR using a non-memory task. Training (...) efficacy was measured with word recall, and transfer of the training benefit was measured with a recall task completed in two VR tasks as well as a self-report memory questionnaire. Testing was administered before, midway, and after training. Participants improved their scores on word recall. Regarding transfer measures, participants improved their performance in the two VR recall tasks but not on the self-report memory questionnaire. No significant group effect was observed. Improvement was found when comparing PRE to POST 3 with no further improvement at POST 6. Thus, strategic memory training improved the memory of seniors with memory complaints on word recall and a transfer task relying on a VR scenario that resembles real-life. However, no evidence supporting an increase in transfer effects was found when enriching training with VR memory exercises. (shrink)