Search

The commercialisation of virtual reality (VR) headsets has made them more affordable and popular in gaming and entertainment. The natural interaction between the VR environment and users can maximise immersion and is crucial to VR gaming. Despite their growing popularity, educational VR games prioritise learning over immersion and require users to learn to interact with and play games using tutorials. Herein, we developed a game named Numverse with an accompanying tutorial. After selecting the tutorial content, we programmed the user interface and proposed a delivery method for the tutorial. We evaluated the user experience based on the effects of the presence or absence of the tutorial and its mode of delivery. The tutorials were of three types: no tutorial, instruction-screen tutorial, and context-sensitive tutorial, with the latter being the most preferred. The evaluation results show that presence, ability to learn controls, intrinsic motivation, and learning effectiveness are higher for the instruction-screen and context-sensitive tutorials than for no tutorial. On average, users experienced more motion sickness in the no-tutorial case, with a significant difference in nausea items. This study asserts the importance of tutorials in VR games, and its findings could improve user experience in future VR games. [ABSTRACT FROM AUTHOR]

This study aims to understand the usability of common button colours and background choices in the existing augmented reality (AR) interface. AR is increasingly used in dynamic situations, such as driving using an AR head-up display. However, studies regarding the usability of AR interfaces, especially about the colours, are scarce. Twenty-four participants performed button selection tasks in an experiment using Microsoft HoloLens. Three measures (task completion time, the number of errors, and button colour visibility were collected for the 12 experimental conditions (3 backgrounds by 4 button colours). Significant differences were found in completion time between backgrounds and blue button visibility. On a moving background, the most effective button colour is orange, and the most minor effective button colour is blue. The results of this study can be used for colour choices in designing AR applications and devices. [ABSTRACT FROM AUTHOR]

The dissemination of rumours and fabricated information via social media has the potential to adversely impact social cohesiveness and contribute to political polarization, which may lead to political divisions by casting doubt on the effectiveness of government and politicians. In light of the global economic crisis caused by the Russian–Ukrainian War, this study aims to identify economic rumours that were circulating in Egyptian society via social media. Machine learning was employed as a means of analysing the sentiment of user comments on various posts, thus providing an effective method for debunking fake news. In order to identify the most salient features of misleading information, the study qualitatively assessed the visual and linguistic elements of the postings. A total of 10,031 comments were analysed after being categorized into main groups. The study's results revealed key features pertaining to the sentiments expressed in the comments as well as identifying common textual traits of rumours and specific visual sentiments depicted in accompanying photos. This research sheds light on the importance of identifying and debunking rumours and fabricated information in order to mitigate their potentially negative effects on social cohesiveness and political polarization. Additionally, it highlights the utility of employing machine learning as a tool for analysing sentiment in user-generated content on social media platforms. [ABSTRACT FROM AUTHOR]