ABSTRACTWhen immersive virtual reality users employ digital self-representations, i.e., avatars, they may be subject to the Proteus effect. This effect describes changes in attitudes and behaviors in accordance with identity cues derived from the employed avatar’s appearance, which can persist after leaving virtual reality. Individual reactions to the experience can affect the strength of observed Proteus effects. Especially the experienced illusions of body ownership of avatars and of being in the virtual environment (spatial presence) have been discussed in this context. This study investigated a Proteus effect of avatar age on post-embodiment walking speed, with special focus on how body ownership and spatial presence moderated this effect. Participants who had previously embodied older avatars took significantly longer to walk a set distance than either young avatar or control group participants. This was only apparent during the first half of the walking phase, which may indicate fast decay rates of the effect after embodiment ended. The reported body ownership could not be shown to impact the strength of the Proteus effect. Participants reporting more pronounced spatial presence were subject to stronger Proteus effects, with only the two-thirds of the sample with higher spatial presence showing evidence of the effect. 相似文献
Objective: Longitudinal studies have consistently shown beneficial effects of positive self-perceptions of ageing (SPA) on health. However, SPA are more often negative than positive, particularly in older adults. For this reason, the present study tested the effectiveness of an intervention to promote more positive SPA in the context of an exercise programme for older adults.
Design: Eighty-four community-dwelling older adults (66-88 years; M(SD)=76.8(5.29)) were randomly assigned to a group-based exercise programme over 12 weeks with (n?=?46) or without (n?=?38) a psychological intervention to change SPA, consisting of four intervention units over the programme period.
Main Outcome Measures: A gain- and a loss-related domain of SPA were assessed at baseline, after the first half of the programme, directly after the programme and in a follow-up four weeks later.
Results: Latent change score models showed an improvement of participants’ SPA in the intervention group in both SPA domains after the programme, whereas SPA did not change in the control group. Both groups showed an improvement in physical performance, however, only the IG showed additional improvements in mental health.
Conclusion: The implementation of an SPA intervention is a promising approach in regular health promotion programmes for older adults. 相似文献
The effects of experimentally induced emotions on task-related processing resources were investigated in two studies designed as dual-task-like paradigms. In Experiment 1, 24 participants viewed a series of affective pictures inducing positive, negative, and neutral emotional states. In Experiment 2, 24 participants imagined emotionally laden life events. Simultaneously to the emotion-inducing procedure, and during a neutral single-task condition, the participants performed auditory oddball discrimination tasks. In this paradigm, the amplitude of the oddball-evoked P3 component of the event-related brain potential reflects the allocation of processing resources to task-related processes. In both studies, the P3 amplitude was smaller in the negative as well as in the positive emotional condition, compared to the two neutral conditions. The results support the assumption that negative emotions get a higher processing priority and can drain on task-related processing resources. In addition, they extend the hypothesis to the effects of positive emotions. 相似文献
Catholic moral theology possesses a number of tools that can be employed to promote worker justice. Some of these tools, such as Catholic social teaching on solidarity and workers’ rights, have been used to this end before. However, advocates of workers’ rights have seldom utilized other concepts, such as cooperation in evil, scandal, and evangelization. This essay provides a theoretical introduction to several tools in the “toolkit” of Catholic ethicists, engaging contemporary scholarship on them. It then applies the concepts to two cases in order to demonstrate their usefulness in the struggle for worker justice. Both cases involve Catholic universities, which means the ethical concepts introduced from the Catholic moral tradition should have normative status for these institutions. The first case entails a divestment campaign at the University of Notre Dame. The second case confronts the unjust treatment of adjunct faculty members at Catholic colleges and universities. 相似文献
This essay unfolds in four steps. First, it sketches the way the fate of freedom in modernity – the freedom of the Promethean self – has set the stage for Protestantism's antinomianism as well as for the theological intervention of Veritatis Spendor. The essay focuses here on Kant, Fichte, Nietzsche. Secondly, it shows how Veritatis Spendor overcomes modernity's autonomist conception of freedom. The essay, thirdly, turns to Protestantism “after Veritatis Spendor” and argues that the encyclical's vision of freedom puts into clear relief the antinomian captivity of contemporary Protestantism. Here, the essay also offers a fresh perspective on Luther's largely unknown opposition to antinomianism. It concludes with ten theses “after the Promethean self” that point the way forward, intimating how freedom will need to be rethought theologically in order to overcome the antinomian captivity of contemporary Protestantism. 相似文献