Exploring the effects of habituation and scent in first-person 360-degree videos on consumption behavior.

Although immersive virtual environments can influence food-related thoughts, emotions and behavior, the influence of repeated exposure to food cues in such environments has rarely been explored. This study seeks to understand if habituation, a decrease in one's physiological and behavioral response that results from repeated simulation, can take place while repeatedly watching 360-degrees of food being consumed. The influence of scent as an olfactory cue is further explored, based on past research on embodied cognition. In Study One (n = 42), participants who viewed 30 repetitions of someone eating an M&M ate significantly fewer M&Ms than those who viewed three repetitions. Study Two (n = 114) used a 2 (behavior: eating M&M/inserting a coin) × 2 (repetitions: 3/30) between-subjects experiment to confirm that results from Study One were due to habituation of the consumption video, finding that there were only significant differences between repetitions in the M&M condition. Finally, Study Three (n = 161) comprised a 2 (repetition: 3/30) × 2 (scent: present/absent) between-subjects experiment. Participants in the 30-repetition condition and those in the scent-present condition ate significantly fewer M&Ms respectively, but no interaction effects were found. The theoretical and practical implications of these findings are discussed.

Social media use for coping with stress and psychological adjustment: A transactional model of stress and coping perspective.

Introduction: The psychological well-being of individuals has become an essential issue during the global pandemic. As a pervasive activity for individuals to pull through COVID-19, social media use may play a role in psychological well-being. Drawing on the transactional model of stress and coping, the current study investigated the relationships between COVID-19-related stressors and the use of social media to facilitate specific coping strategies. We further investigated how social media coping strategies impact users' psychological adjustment. Methods: We collected the data from 641 quarantined residents through a two-wave survey that was conducted in two cities in China during government-mandated lockdowns. Results: The results showed that perceived COVID-19 stress was related to the intensity of social media use for problem-focused coping, socioemotional coping, and mental disengagement. In addition, individuals' psychological adjustment was positively associated with social media use for socioemotional coping and mental disengagement while negatively related to problem-focused coping. Age was also found to be a moderator of the relationship between socioemotional coping and psychological adjustment. Discussion: To relieve pandemic-related stress, individuals can actively utilize social media to implement various coping strategies. However, coping activities with social media may not always induce psychological benefits. By revealing the different levels of psychological adjustment among social media users with specific coping strategies, the current research enriched the literature on the effects of social media use on mental health. Findings from this study suggest the need for the prudent use of social media to cope with public health crises.

A Public Database of Immersive VR Videos with Corresponding Ratings of Arousal, Valence, and Correlations between Head Movements and Self Report Measures.

Virtual reality (VR) has been proposed as a methodological tool to study the basic science of psychology and other fields. One key advantage of VR is that sharing of virtual content can lead to more robust replication and representative sampling. A database of standardized content will help fulfill this vision. There are two objectives to this study. First, we seek to establish and allow public access to a database of immersive VR video clips that can act as a potential resource for studies on emotion induction using virtual reality. Second, given the large sample size of participants needed to get reliable valence and arousal ratings for our video, we were able to explore the possible links between the head movements of the observer and the emotions he or she feels while viewing immersive VR. To accomplish our goals, we sourced for and tested 73 immersive VR clips which participants rated on valence and arousal dimensions using self-assessment manikins. We also tracked participants' rotational head movements as they watched the clips, allowing us to correlate head movements and affect. Based on past research, we predicted relationships between the standard deviation of head yaw and valence and arousal ratings. Results showed that the stimuli varied reasonably well along the dimensions of valence and arousal, with a slight underrepresentation of clips that are of negative valence and highly arousing. The standard deviation of yaw positively correlated with valence, while a significant positive relationship was found between head pitch and arousal. The immersive VR clips tested are available online as supplemental material.

Wii, Myself, and Size: The Influence of Proteus Effect and Stereotype Threat on Overweight Children's Exercise Motivation and Behavior in Exergames.

OBJECTIVE: Exercise-based videogames, or exergames, provide a promising and novel way to improve exercise attitudes and behavior among overweight children. These digital interventions often allow for customizations of player characters and weave in narratives and goals. Theoretically, the presence of visual identity cues (e.g., avatars) and social category cues (e.g., stereotypes) within the virtual gaming environment are likely to motivate a player's exercise attitudes and behavior in various ways. This study examined the effects of both visual cues (via the Proteus effect) and social cues (via stereotype threat) on overweight children's exercise attitudes and game performance in a virtual running game. SUBJECTS AND METHODS: A 2 (avatar body size: Normal versus overweight)×2 (stereotype threat: Present versus absent) factorial design experiment was conducted with 140 overweight children between 9 to 12 years of age. Dependent variables measured were participants' exercise attitudes, exercise motivation, exercise motivation with regard to the Nintendo(®) (Kyoto, Japan) Wii™, and their in-game performance. RESULTS: Multivariate analysis of covariance tests showed that overweight children assigned to avatars of normal body size scored significantly better on all four variables compared with those assigned to avatars of large body size, whereas overweight children assigned to a stereotype threat absent condition scored significantly better on three of the four variables compared with those assigned to a stereotype threat present condition. CONCLUSIONS: Using avatars with normal body size and not being subjected to stereotypical messages has the potential to increase the effectiveness of exergames among overweight children. Exergame developers should consider designing avatars that are slim and toned and set "weight neutral" goals and challenges. These may provide more motivation and yield greater attitudinal and behavioral changes among overweight children.