Comparing Continuous and Retrospective Emotion Ratings in Remote VR Study
arxiv(2024)
摘要
This study investigates the feasibility of remote virtual reality (VR)
studies conducted at home using VR headsets and video conferencing by deploying
an experiment on emotion ratings. 20 participants used head-mounted displays to
immerse themselves in 360 videos selected to evoke emotional responses.
The research compares continuous ratings using a graphical interface to
retrospective questionnaires on a digitized Likert Scale for measuring arousal
and valence, both based on the self-assessment manikin (SAM). It was
hypothesized that the two different rating methods would lead to significantly
different values for both valence and arousal. The goal was to investigate
whether continuous ratings during the experience would better reflect users'
emotions compared to the post-questionnaire by mitigating biases such as the
peak-end rule. The results show significant differences with moderate to strong
effect sizes for valence and no significant differences for arousal with low to
moderate effect sizes. This indicates the need for further investigation of the
methods used to assess emotion ratings in VR studies. Overall, this study is an
example of a remotely conducted VR experiment, offering insights into methods
for emotion elicitation in VR by varying the timing and interface of the
rating.
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