Immersive Virtual Environment Technology Research Articles

Immersive Virtual Environment Technology: A Promising Tool for Future Social and Behavioral Genomics Research and Practice

Social and behavioral research needs to get started now if scientists are to direct genomic discoveries to address pressing public health problems. Advancing social and behavioral science will require innovative and rigorous communication methodologies that move researchers beyond reliance on traditional tools and their inherent limitations. One such emerging research tool is immersive virtual environment technology (virtual reality), a methodology that gives researchers the ability to maintain high experimental control and mundane realism of scenarios; portray and manipulate complex, abstract objects and concepts; and implement innovative implicit behavioral measurement. This report suggests the role that immersive virtual environment technology can play in furthering future research in genomics-related education, decision making, test intentions, behavior change, and health-care provider behaviors. Practical implementation and challenges are also discussed.

Virtually True: Children's Acquisition of False Memories in Virtual Reality

Previous work on human memory has shown that prompting participants with false events and self-relevant information via different types of media such as narratives, edited 2-dimensional images, and mental imagery creates false memories. This study tested a new form of media for studying false memory formation: Immersive Virtual Environment Technology (IVET). Using this tool, we examined how memory was affected by viewing dynamic simulations of avatars performing novel actions. In the study, 55 preschool and elementary children were randomly assigned to 1 of 4 memory prompt conditions (idle, mental imagery, IVET simulation of another child, or IVET simulation of self). Each child was questioned 3 different times: once before the memory prompt, once immediately after the memory prompt, and once approximately 5 days after the memory prompt. Results showed that preschool children were equally likely to develop false memories regardless of memory prompt condition. But, for elementary children, the mental imagery and IVET self conditions caused significantly more false memories than the idle condition. Implications regarding the use of digital media in courtroom settings, clinical therapy settings, entertainment, and other applications are discussed.

How, When, and Why to Use Digital Experimental Virtual Environments to Study Social Behavior

AbstractOver the last decade, researchers have begun using immersive virtual environment technology (IVET; commonly known as virtual reality) to create digital experimental virtual environments (DEVEs) to investigate social psychological processes. Researchers increasingly recognize that IVET provides powerful and cost‐effective ways to manipulate theoretical variables and to measure a host of outcome variables, while providing a remarkable level of experimental control and ecological realism. In this article, we discuss IVET, the nature of social influence within DEVEs, and the use of DEVEs to study social behavior.

Virtual Experiences, Physical Behaviors: The Effect of Presence on Imitation of an Eating Avatar

In this study, the role of presence in the imitation of a virtual model was examined. Immersive virtual environment technology (IVET) was used to create photorealistic virtual representations of the self that were depicted eating food in a virtual world. Changes in the virtual environment (via a changing or unchanging body) were incorporated to create variance in perceived subjective presence. Based on previous research, presence was hypothesized to affect the relationship between the environmental manipulations and the behavioral outcome of imitating the avatar's eating behavior. Here we show that presence did indeed affect imitation, but that the effects varied for men and women in accordance with previous research on sex differences in eating behavior. Men who experienced high presence were more likely than low presence men to imitate the virtual model and eat candy, whereas women who experienced high presence were more likely than low presence women to suppress the behavior and not eat candy.

The Difference Between Being and Seeing: The Relative Contribution of Self-Perception and Priming to Behavioral Changes via Digital Self-Representation

Studies in the Proteus Effect (N. Yee & J. Bailenson, 2007) have shown that the appearance of avatars (i.e., digital representations of ourselves) can lead to behavioral changes in users. For example, participants in attractive avatars became friendlier to confederate strangers than participants in unattractive avatars. While the Proteus Effect is premised on self-perception theory (D. Bem, 1972)—the notion that we infer our own attitudes by observing ourselves as if from a third party—it is also possible that the previous findings were caused by priming (i.e., behavioral assimilation; J. Bargh, M. Chen, & L. Burrows, 1996). In our study, we used immersive virtual environment technology to experimentally tease apart embodiment from perception of the same visual stimulus. Our results showed that embodiment produced significantly larger behavioral changes than mere observation of the same visual stimuli. These findings support the claim that our avatars provide a unique lever to behavioral change; however, more work is needed to pin down the exact mechanism behind the effect.

Virtual Self-Modeling: The Effects of Vicarious Reinforcement and Identification on Exercise Behaviors

Social cognitive theory is often implemented when researchers develop treatments and campaigns for health behavior change. Immersive virtual environment technology (IVET) enables novel explorations of health behavior modeling. In Study 1, participants were randomly assigned to one of three treatments: vicarious reinforcement, in which a virtual representation of the physical self (VRS) gained or lost weight in accordance with participants' physical exercise; an unchanging VRS; or no virtual representation. The reinforcement group performed significantly more exercise in a voluntary phase than those in other conditions. Study 2 separated reward (weight loss) from punishment (weight gain) and also explored model identification by contrasting the effects of a VRS with a VRO (virtual representation of an other); participants exercised significantly more when they viewed the VRS, regardless of whether reward or punishment was shown. In Study 3, participants were exposed to either a VRS running on a treadmill, a VRO running, or a VRS loitering, and we examined effects 24 hours after the experiment. Follow-up surveys revealed that participants in the VRS-running condition demonstrated significantly higher levels of exercise than those in other conditions. We discuss implications for media use and health communication.

Self‐Representations in Immersive Virtual Environments1

This experiment varied whether individuals interacted with virtual representations of themselves or of others in an immersive virtual environment. In the self‐representation condition, half of the participants interacted with a self‐representation that bore photographic resemblance to them, whereas the other half interacted with a self‐representation that bore no resemblance to them. In the other‐representation condition, participants interacted with a representation of another individual. The experimental design was a 2 (Participant Gender) × 3 (Agent Identity: high‐similarity self‐representation vs. low‐similarity self‐representation vs. other representation). Overall, participants displayed more intimacy‐consistent behaviors for representations of themselves than others. Implications of using immersive virtual environment technology for studying the self are discussed.

Se perfectionner grâce à la réalité virtuelle: Deux études empiriques et leur implication pour la pratique

Immersive Virtual Environment Technology (IVET) immerses participants in illusory physical and social environments. Participants can look and walk around and converse with a virtual human, is a three-dimensional digital human representation, who looks and acts like a real person although he / she is entirely controlled by the experimenter by means of a computer program. IVET is an economically efficient method to (a) conduct research on interpersonal interactions and to (b) offer the possibility to train physicians in their communication skills and to improve the candidate's self-presentation in a job interview. We found, for instance, that physician communication style (dominant and caring) elicits different emotional and behavioral responses from the patients. Moreover, research on recruiter-candidate interaction shows that there is a correspondence between the candidates' perception of their competences and their competences evaluated by a recruiter. Despite this correspondence, candidates overestimate their performance in the job interview. The Institute of Work and Organizational Psychology possesses, since 2006, its own virtual reality lab. IVET can be used in a work and organizational psychology context for concrete educational applications.

What Can Virtual Reality Teach Us About Prosocial Tendencies in Real and Virtual Environments?

As virtual environments (VEs) become increasingly central to people's lives (Terry, 2002), understanding reactions to VEs may be as important as understanding behavior in the real world (Yee, Bailenson, Urbanek, Chang, & Merget, 2007). Immersive Virtual Environment Technology (IVET), which is now being used in psychological research (Blascovich et al., 2002), can provide greater experimental control, more precise measurement, ease of replication across participants, and high ecological validity, making it attractive for researchers. It also can create links between researchers who study basic social psychological processes and those who study new media. In two studies we examined people's reactions as they navigated through a virtual world and interacted with virtual people, some of whom needed help. Participants' compassion and tendency to experience personal distress predicted emotional reactions (concern) and proxemic behavior (gaze orientation and degree of interpersonal distance) to a virtual person in need but not to a control person. The results support the use of IVET and proxemic variables to measure compassion unobtrusively and they encourage the use of IVET to advance our understanding of people's behavior in and reactions to virtual worlds and new media.

The Effects of Witness Viewpoint Distance, Angle, and Choice on Eyewitness Accuracy in Police Lineups Conducted in Immersive Virtual Environments

The current study investigated the value of using immersive virtual environment technology as a tool for assessing eyewitness identification. Participants witnessed a staged crime and then examined sequential lineups within immersive virtual environments that contained 3D virtual busts of the suspect and six distractors. Participants either had unlimited viewpoints of the busts in terms of angle and distance, or a unitary view at only a single angle and distance. Furthermore, participants either were allowed to choose the angle and distance of the viewpoints they received, or were given viewpoints without choice. Results demonstrated that unlimited viewpoints improved accuracy in suspect-present lineups but not in suspect-absent lineups. Furthermore, across conditions, post-hoc measurements demonstrated that when the chosen view of the suspect during the lineup was similar to the view during the staged crime in terms of distance, accuracy improved. Finally, participants were more accurate in suspect-absent lineups than in suspect-present lineups. Implications of the findings in terms of theories of eyewitness testimony are discussed, as well as the value of using virtual lineups that elicit high levels of presence in the field. We conclude that digital avatars of higher fidelity may be necessary before actually implementing virtual lineups.

Stand Assessment through Lidar-Based Forest Visualization Using Immersive Virtual Environment Technology

Abstract This study examined the utility of light detection and ranging (lidar) remote sensing combined with immersive virtual environment technology for timber stand assessment. Lidar data were used to identify locations and extract dimensional information of trees in immature and mature loblolly pine (Pinas taeda, L) stands in northeast Mississippi. Computer visualized stands were built on the basis of lidar measurements and were projected with an interactive room-size stereoscopic display. Representational quality of lidar-based virtual forests was assessed through stand descriptions made by human subjects recruited from the Department of Forestry at Mississippi State University. Subjects examined either field-recorded videos or computer visualizations of immature and mature stands and estimated stocking, tree size class, height class, rotation stage, stand structure, and hardwood competition of each stand. Estimated stand characteristics by the two groups were compared. Significant viewer group differences were found in height class and rotation stage but not in other characteristics. Discussion includes how the immersive virtual environment technologies are potentially useful in natural resources management. Further study of economic aspects and interface development would be required to promote these technologies to an operational system.

Immersive Virtual Video Game Play and Presence: Influences on Aggressive Feelings and Behavior

Immersive virtual environment technology (IVET) allows developers to create simulated environments that can engage users in context relevant behaviors and that can produce relatively intense user experiences for purposes such as entertainment (e.g., video games), phobia desensitization, and training. We predicted that playing a violent video game using an IVET platform would lead to increased presence and aggressive feelings and behavior compared to playing on a less immersive desktop platform. The results of two experiments supported this hypothesis. The data suggest that presence mediated the relationship between playing platform and aggressive feelings but not the relationship between playing platform and aggressive behavior. Finally, we explored the utility of using cardiovascular measures within this research paradigm.

The self-protective and undermining effects of attributional ambiguity

Two experiments assessed the self-protective and undermining effects of attributional ambiguity. Both studies utilized immersive virtual environment technology to achieve otherwise difficult manipulations of stigma. In Experiment 1, White and Latino participants were either stigmatized (represented as Latino) or not (represented as White) and given negative leadership performance feedback. Afterwards, stigmatized participants reported higher well-being and attributed negative feedback more to discrimination than nonstigmatized participants. In Experiment 2, Latinos represented veridically showed self-protective effects after receiving negative leadership feedback. Additionally, this experiment revealed undermining effects of attributional ambiguity such that those participants represented as Latino discounted positive feedback and reported lower well-being. Thus, attributional ambiguity of stigmatized individuals (real or induced) buffered well-being in the face of negative feedback but undermined the well-being effects of positive feedback.

The Courtroom of the Future is Here: Introduction to Emerging Technologies in the Legal System

This introductory article overviews the articles in this special issue on emerging technologies in the legal system. The articles concern videotaped confessions, videoconferencing in criminal proceedings, animations and simulations, and immersive virtual environment technology. The article then highlights issues raised by the articles related to important policy and legal principles underlying our system of justice.

Transformed Social Interaction, Augmented Gaze, and Social Influence in Immersive Virtual Environments

Immersive collaborative virtual environments (CVEs) are simulations in which geographically separated individuals interact in a shared, three-dimensional, digital space using immersive virtual environment technology. Unlike videoconference technology, which transmits direct video streams, immersive CVEs accurately track movements of interactants and render them nearly simultaneously (i.e., in real time) onto avatars, three-dimensional digital representations of the interactants. Nonverbal behaviors of interactants can be rendered veridically or transformed strategically (i.e., rendered nonveridically). This research examined augmented gaze, a transformation in which a given interactant's actual head movements are transformed by an algorithm that renders his or her gaze directly at multiple interactants simultaneously, such that each of the others perceives that the transformed interactant is gazing only at him or her. In the current study, a presenter read a persuasive passage to two listeners under various transformed gaze conditions, including augmented gaze. Results showed that women agreed with a persuasive message more during augmented gaze than other gaze conditions. Men recalled more verbal information from the passage than women. Implications for theories of social interaction and computer-mediated communication are discussed.

Transformed Social Interaction, Augmented Gaze, and Social Influence in Immersive Virtual Environments

Immersive collaborative virtual environments (CVEs) are simulations in which geographically separated individuals interact in a shared, three-dimensional, digital space using immersive virtual environment technology. Unlike videoconference technology, which transmits direct video streams, immersive CVEs accurately track movements of interactants and render them nearly simultaneously (i.e., in real time) onto avatars, three-dimensional digital representations of the interactants. Nonverbal behaviors of interactants can be rendered veridically or transformed strategically (i.e., rendered nonveridically). This research examined augmented gaze, a transformation in which a given interactant's actual head movements are transformed by an algorithm that renders his or her gaze directly at multiple interactants simultaneously, such that each of the others perceives that the transformed interactant is gazing only at him or her. In the current study, a presenter read a persuasive passage to two listeners under various transformed gaze conditions, including augmented gaze. Results showed that women agreed with a persuasive message more during augmented gaze than other gaze conditions. Men recalled more verbal information from the passage than women. Implications for theories of social interaction and computer-mediated communication are discussed.

Interpersonal distance in immersive virtual environments.

Digital immersive virtual environment technology (IVET) enables behavioral scientists to conduct ecologically realistic experiments with near-perfect experimental control. The authors employed IVET to study the interpersonal distance maintained between participants and virtual humans. In Study 1, participants traversed a three-dimensional virtual room in which a virtual human stood. In Study 2, a virtual human approached participants. In both studies, participant gender, virtual human gender, virtual human gaze behavior, and whether virtual humans were allegedly controlled by humans (i.e., avatars) or computers (i.e., agents) were varied. Results indicated that participants maintained greater distance from virtual humans when approaching their fronts compared to their backs. In addition, participants gave more personal space to virtual agents who engaged them in mutual gaze. Moreover, when virtual humans invaded their personal space, participants moved farthest from virtual human agents. The advantages and disadvantages of IVET for the study of human behavior are discussed.

Social Inhibition in Immersive Virtual Environments

We assessed the utility of using immersive virtual environment (IVE) technology for social psychological research by attempting to replicate two classic social influence effects. Specifically, we sought to replicate the classic social facilitation/inhibition effects wherein individuals' performance on a task is affected by the presence of others. Within an IVE, participants mastered one of two tasks and subsequently performed the mastered or nonmastered task either alone or in the presence of a virtual human audience whom they were led to believe were either computer-controlled agents or human-controlled avatars. Those performing in the presence of avatars demonstrated classic social inhibition performance impairment effects relative to those performing alone or in the presence of agents. We discuss important elements involved in the experience of social influence within immersive virtual environments.

TARGET ARTICLE: Immersive Virtual Environment Technology as a Methodological Tool for Social Psychology

Historically, at least 3 methodological problems have dogged experimental social psychology: the experimental control-mundane realism trade-off, lack of replication, and unrepresentative sampling. We argue that immersive virtual environment technology (IVET) can help ameliorate, if not solve, these methodological problems and, thus, holds promise as a new social psychological research tool. In this article, we first present an overview of IVET and review IVET-based research within psychology and other fields. Next, we propose a general model of social influence within immersive virtual environments and present some preliminary findings regarding its utility for social psychology. Finally, we present a new paradigm for experimental social psychology that may enable researchers to unravel the very fabric of social interaction.

AUTHORS' RESPONSE: Immersive Virtual Environment Technology: Just Another Methodological Tool for Social Psychology?

We reply to commentaries on our target article (Blascovich et al., this issue). We focus on the more critical comments, agreeing with some, disagreeing with some, and rebutting some. We conclude that the test of the value of immersive virtual environment technology is the degree to which it becomes diffused throughout the field.