Immersion and the illusion of presence in virtual reality

This commentary briefly reviews the history of virtual reality and its use for psychology research, and clarifies the concepts of immersion and the illusion of presence.     

Teaming up with temps: the impact of temporary workers on team social networks and effectiveness

Temporary workers offer immediate benefits to the bottom line; yet, it is unclear how incorporating temporary workers into teams affects how they function. We apply social identity theory to propose that temporary workers significantly reduce individual- and team-level networks and team effectiveness but that commitment to the leader and intergroup competition can help temporary and permanent employees work together more effectively. Using a sample of employees nested in teams (Study 1, n = 312), we found that status differences affected member interactions resulting in sparser advice and friendship networks for temporary workers compared to their permanent counterparts. At the team level (Study 2, n = 58), these team member differences or contract diversity impacted team functioning through advice networks, such that, teams with greater contract diversity had sparser networks and were less effective. Further, commitment to the leader was found to moderate the negative impact of contract diversity on advice and friendship network density. With the increasing use of temporary worker and the prevalent use of teams, these findings have broader implications for HR functions and present possible avenues to mitigate the negative consequences of temporary workers.     

Computerized cognitive training during physical inactivity improves executive functioning in older adults

The hippocampus is closely tied to spatial navigation, a central component in cognitive functioning, and critically involved in age-associated cognitive decline and dementia. This study evaluated a novel, cognitive computerized spatial navigation training (CSNT) program targeting the hippocampus, with expectation of mitigating possible cognitive decline with bed rest (BR). During a 14-day BR study with 16 healthy, older men (mean age = 60 ± 3, range = 55–65 years), half received CSNT for 12 days in 50-min sessions and half were controls (watching documentaries). This design uniquely controlled diet, sleep, and other personal and environmental activities. Although there were no cognitive declines in controls post-BR, CSNT participants demonstrated significant increases in executive/attention ability and processing speed, and continued spatial navigation testing showed improvement to 400 days post-BR. This intervention may prove useful to mitigate cognitive declines known to occur in long periods of immobilization and could have broader implications in protecting against age-related cognitive decline.     

Ecological Factors Impacting Provider Attitudes Towards Human Service Delivery Reform

Although reform efforts are substantially altering the structural operations and guiding ideological framework of the human service delivery system, little empirical work has been done to systematically examine these transformations. This study examines providers' attitudes regarding two reform elements that are being widely implemented: an increased emphasis on inter-agency collaboration and a shift from a medical model service delivery philosophy, that focuses on client deficits, to one that emphasizes consumer strengths. Through survey data collected from 186 providers from 32 human service agencies in one county, the relationship between providers' perceptions of contextual support for human service delivery reform and providers' attitudes towards these initiatives is explored. The findings from this study support the importance of attending to the ecology in which we initiate system reform efforts. For both reform elements, working within contexts that are perceived as providing ideological and functional support for change was associated with positive provider attitudes towards those changes. Staffs' perceptions of the external environment played the most critical role in shaping staff attitudes. Interestingly, unique aspects of providers' work environments were related to positive attitudes towards the two different reforms. The implications of these findings for the success of human service delivery reform are discussed.     

Spirit and truth: Reckoning with the crises of Covid-19 for the Church

The Covid-19 pandemic forces North American churches to reckon with long-standing crises and questions surrounding online community, access to worship, decline in membership, the struggle of small congregations, and the reality of our global communion. This article describes a response grounded in faith defined as confidence in our liberation from pride and despair through Jesus Christ. There is need for clarity of doctrine and spiritual courage to fulfill the church's twofold mission to sustain and grow the body of Christ; both these tasks require courage to approach and speak from the Gospel in ever-new contexts and ages.     

虚拟现实技术在心理学领域的应用与展望

虚拟现实(VR)技术因其能够提高实验研究的生态效度、条件控制水平、可重复性以及避免实地操作带来的危险,被众多研究者引入心理学领域。VR技术除了被用于改良实验程序外,也广泛应用于注意、记忆和执行能力等神经心理测验评估,在恐惧症、焦虑症、创伤后应激障碍和精神分裂症等精神障碍的临床治疗中亦取得丰硕成果。未来研究可致力于改进VR技术本身存在的问题、扩大样本量并扩展研究方法和范围,为VR应用提供更可靠的信效度证据。     

Characterizing positive and negative ‘voicers’ in elite sport teams: The role of the Five Factor Model and narcissism in players’ frequency and passing on of voice

ObjectiveThis study examined the role of the Five Factor Model and grandiose narcissism in players’ positive (i.e., constructive voice, supportive voice) and negative voice (i.e., defensive voice, destructive voice) in elite sport teams.MethodPlayers from six field hockey and seven korfball teams from the two highest national levels were assessed for four weeks. Using social network analyses, players’ personality was related to their self-reported voice frequency, their voice frequency as perceived by all teammates (other-ratings), and the extent to which they pass on voice.ResultsExtraversion was positively related to players’ frequency of positive and negative voice. Other traits such as conscientiousness and emotional stability were only related to, respectively, positive or negative types of voice. Not all personalities (e.g., extraversion) were consistent in how they assess their own voice versus how others perceive this. Interestingly, traits such as extraversion, emotional stability and the agentic facet of narcissism were found to predict the passing on of voice.ConclusionThis study explored the importance of personality for (a) players’ frequency of a differentiated set of positive and negative voice and (b) the extent to which they function as ‘gates’ that more covertly pass on voice. Further, the results provide perspective on how specific personalities view their voice behavior versus how their teammates perceive their voice behavior. In this way, this study is a first step in identifying players who have the potential to endanger or strengthen a team in a clear or subtle, yet influential way.     

视频游戏虚拟化身对自我概念的影响

虚拟化身(virtual avatar)是玩家在视频游戏中的虚拟自我呈现方式, 通过操控虚拟化身, 玩家可扮演不同的角色, 并拥有新的身份。作为现实自我的投射和展示, 虚拟化身会影响个体的自我认同, 并带来自我的变化。近年来, 越来越多的研究开始关注虚拟化身对个体自我的影响。大量研究表明, 在视频游戏中操纵虚拟化身进行行为和身份模拟会影响个体的自我概念。相关理论从不同视角解释了虚拟化身影响自我概念的原因。另外, 已有研究表明虚拟化身与自我概念的关系受到化身线索、视频游戏特征及个体因素的影响; 自我临场感和化身认同是虚拟化身影响自我概念的内在心理机制。未来研究应关注虚拟化身对自我概念的深层次影响和长期影响, 化身形象和行为两种线索的交互影响, 以及虚拟化身带来的自我概念改变对现实行为的影响, 并加强该领域的应用研究。     

COLLECTIVE SELF‐ORGANIZATION IN GENERAL BIOLOGY: GILLES DELEUZE,CHARLES S. PEIRCE,AND STUART KAUFFMAN

Stuart Kauffman's proposal in Investigations to ground a “general biology” in the laws of self‐organization governing systems of autonomous agents runs up against the methodological problem of how to integrate formal mathematical with semantic and semiotic approaches to the study of evolutionary development. Gilles Deleuze's concept of the virtual and C. S. Peirce's system of existential graphs provide a theoretical framework and practical art for answering this problem of method by modeling the creative event of collective self‐organization as both represented and practiced in the scientific community.