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Research on Social Information Processing using the Augmented Reality Device: Comparison with Real-World Human Interaction
Jaehwan You, Jiwoong Heo, Enjoo Kim, Kwanguk Kim
http://doi.org/10.5626/JOK.2021.48.3.308
Research on augmented reality (AR) has focused on the development of technologies and its task performances. However, the effect of AR technologies on social interaction is yet to be rigorously examined. Social interaction is one of the key components of human learning and cognitive developments. In this study, we compared initiating and responding joint attention with the social information processing task, and each participant conducted both AR and real-world conditions. Thirty-three participants were enrolled in the current study, and dependent measures included accuracies of target, non-target, and novel pictures, and total head-movements. The results suggested that there were no significant differences in information processing of target and novel pictures, but we found that accuracies of non-target pictures and total head-movements were significantly different between AR and real-world conditions. These results suggested that AR devices can be used for social information processing tasks, but they need improvements, which are discussed in the current study.
Beyond Head-mounted Display: Extended Field of View using Sparse Peripheral Display Techniques
http://doi.org/10.5626/JOK.2019.46.8.732
The field of view (FoV) is one of the main properties of virtual reality (VR) systems with head-mounted displays (HMDs). While preceding VR studies have suggested novel methodologies to extend the FoV of HMDs, there were limitations in those methods, including: heavy weight, high cost, and screen distortion. The observation through the human retina indicated that the density of human photoreceptors are distributed variedly between the central and peripheral visual fields. The sparse peripheral display (SPD) was proposed based on these observations. In this study, we suggest and compare the combination of SPD technologies using different number (2-80) of light-emitting diodes (LEDs) and different tasks (visual search and emotion tasks). The results showed that the visual-search task with use of six LEDs and there were no significant differences in the emotion task. Discussion of the potential applications of SPD-HMD systems, including therapeutic techniques to assist handicapped people was done.
Comparing Initiating and Responding Joint Attention as a Social Learning Mechanism : A Study Using Human-Avatar Head/Hand Interaction
Mingyu Kim, So-Yeon Kim, Kwanguk Kim
Joint Attention (JA) has been known to play a key role in human social learning. However, relative impact of different interaction types has yet to be rigorously examined because of limitation of existing methodologies to simulate human-to-human interaction. In the present study, we designed a new JA paradigm with emulating human-avatar interaction and virtual reality technologies, and tested the paradigm in two experiments with healthy adults. Our results indicated that initiating JA (IJA) condition was more effective than responding JA (RJA) condition for social learning in both head and hand interactions. Moreover, the hand interaction involved better information processing than the head interaction. The implication of the results, the validity of the new paradigm, and limitations of this study were discussed.
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