虚拟现实环境中存在感的产生及影响因素

Generation and Influential Factors of Presence in Virtual Reality Environment

虚拟现实环境中的存在感指个人感觉与虚拟刺激环境有关或参与的程度,它是虚拟现实技术有效性的关键影响因素,包括空间存在感、参与和真实性三个维度。具身存在和情感归因两类理论,以认知、情感为不同侧重点,解释了存在感的产生机制。存在感通过自陈问卷并辅以电生理指标进行评估;受使用者个体特征、情绪状态以及虚拟现实系统特征等因素影响;它是决定虚拟现实技术应用的重要因素。未来研究需完善存在感的客观评价指标,明确情绪与存在感的关系及其作用机制,对比其在普通被试与认知功能障碍的临床被试中的差异。

Presence in the virtual reality environment refers to the degree of personal feeling related to or participation in the virtual reality environment.It is a key factor influencing the effectiveness of virtual reality technology,including three dimensions of space presence,immersion and realism.The two types of theories of embodied existence and emotional attribution,with different emphasis on cognition and emotion,explain the mechanism of presence.Presence is assessedthrough self-reporting questionnaires supplemented by electrophysiological indicators,it is affected by factors such as the user s individual characteristics,emotional state,and virtual reality system characteristics;it is an important factor in determining the application of virtual reality technology.Future research needs to improve the objective evaluation indicators of presence,clarify the relationship between emotion and presence and its mechanism of action,and compare the differences between ordinary subjects and clinical subjects with cognitive dysfunction.