Christ, Oliver

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Christ, Oliver

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2015 - 2019122020 - 20237
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  • Vorschaubild
    Publikation
    Job relevance or perceived usefulness? What features of immersive virtual reality software predict intention to use in a future project-based-learning scenario: a mixed method approach
    (Frontiers Research Foundation, 14.12.2023) Travaglini, Alessio; Brand, Esther; Meier, Pascal; Christ, Oliver [in: Frontiers in Virtual Reality]
    Not only since COVID-19, the topic of decentralized working and learning methods is becoming increasingly important for various reasons. New virtual reality technologies enable learning in immersive scenarios, which is good when learning from home is advised. However, not all immersive Virtual Reality (iVR) training incorporates learning systems that support complex, realistic, practical tasks that lead to a product or enable acquiring knowledge and life-enhancing skills like project-based learning. Although there are many iVR applications available that support project management, the specific features of these applications that lead to the intention to use (and therefore life-enhancing skills) have yet to be discovered. In this exploratory mixed-method study, we investigated the question of the importance of perceived usefulness (PU) and job relevance (JR) as predictors of intention to use (ItU) in a selection of immersive iVR application features. We started with market research and aggregated 88 software features in 13 categories of 34 professional iVR applications. After an expert selection and ranking procedure, a survey was developed. After deriving from the TAM 2 model and with a sample n = 103, we computed the relationship of JR, PU, and ItU. Although high values were generally observed, we found that the importance of PU is higher than JR when it comes to ItU. Limitations of the study are discussed, and suggestions for further research are given.
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Vorschaubild
    Publikation
    Immersive virtual reality during work out with movable sports equipment: the effect on oculomotor, disorientation, and nausea before and after training
    (AHFE Open Access, 2023) Christ, Oliver; Deuber, Michelle; Gächter, Anina; Guedel, Jordin; Papageorgiou, Andreas; Ahram, Tareq; Taiar, Redha [in: Human Interaction & Emerging Technologies (IHIET 2023): Artificial Intelligence & Future Applications]
    The combination of immersive virtual reality and sport has garnered significant attention in the academic world and the industry domains. There is a decent amount of literature that shows positive effects but also critical voices when it comes to learning and wellbeing in a virtual world during work out. In our study we postulate the hypothesis that subjects with a higher degree of predisposition in simulation sickness will show higher values in all three subscales of the simulation sickness questionnaire (SSQ) while doing exercise with sports gear with moveable parts in a fully immersive VR application than subjects with lower degrees of predisposition in motion sickness. However, our data did not support the hypothesis. Surprisingly, we even found a disproportionate significant improvement in the oculomotor subscale of the SSQ. These results are being discussed and further studies are being suggested.
    04B - Beitrag Konferenzschrift
  • Vorschaubild
    Publikation
    Virtual Reality in der Berufsbildung. Pilotstudie der login Berufsbildung AG und der Hochschule für Angewandten Psychologie (FHNW)
    (01/2021) Christ, Oliver; Hirschi, Mathias; Fleischmann, Daniel [in: Transfer, Berufsbildung in Forschung und Praxis]
    Noch werden virtuelle Simulationen in der Berufsbildung selten eingesetzt. Eine entscheidende Anforderung an das Instrument bildet neben dem didaktischen Mehrwert gegenüber konventionellen Lernformen auch die Frage, welche Auswirkungen die Übertragung bestimmter Lernparadigmen in den virtuellen Raum auf die Einstellung, Motivation und die Leistung von Auszubildenden hat. Diese Frage untersuchte login Berufsbildung AG zusammen mit der Hochschule für Angewandte Psychologie der FHNW. Die Studie kommt zum Schluss, dass beim Erlernen eines Arbeitsprozesses eine feste Anzahl von Wiederholungen einer Teilaufgabe in der virtuellen Welt einen Lernvorteil bietet. Auf der anderen Seite zeigt das zufällige Wiederholen von unterschiedlichen Teilaufgaben weniger Lernerfolg im Erwerb von Prozesswissen. Während die Auszubildenden Virtual Reality als «virtuellen Blick» in ihre berufliche Zukunft als zusätzlichen Mehrwert erleben, wirkt sich die Art der Gestaltung des VR-Trainings massgeblich auf die Motivation aus.
    10 - Elektronische-/ Webpublikation
  • Vorschaubild
    Publikation
    Embodiment, Presence, and Their Intersections: Teleoperation and Beyond
    (ACM, 05/2020) Christ, Oliver; Beckerle, Philipp; Abbink, David A.; Nostadt, Nicolas [in: ACM Transactions on Human-Robot Interaction]
    Subjective experience of human control over remote, artificial, or virtual limbs has traditionally been investigated from two separate angles: presence research originates from teleoperation, aiming to capture to what extent the user feels like actually being in the remote or virtual environment. Embodiment captures to what extent a virtual or artificial limb is perceived as one’s own limb. Unfortunately, the two research fields have not interacted much. This survey intends to provide a coherent overview of the literature at the intersection of these two fields to further that interaction. Two rounds of systematic research in topic-related databases resulted in 414 related articles, 14 of which satisfy the deliberately strict inclusion criteria: 2 theoretical frameworks that highlighted intersections and 12 experimental studies that evaluated subjective measures for both concepts. Considering the surrounding literature as well, theoretical and experimental potential of embodiment and presence are discussed and suggestions to apply them in teleoperation research are derived.While increased publication activity is observed between 2016 and 2018, potentially caused by affordable virtual reality technologies, various open questions remain. To tackle them, human-in-the-loop experiments and three guiding principles for teleoperation system design (mechanical fidelity, spatial bodily awareness,and self-identification) are suggested
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Vorschaubild
    Publikation
    Training in Immersive Virtual Reality: A Short Review of Presumptions and the Contextual Interference Effect
    (Springer, 03.04.2020) Christ, Oliver; Ziegler, Cyrill; Hirschi, Andreas; Genovese, Rosina; Papageorgiou, Andreas; Ahram, Tareq; Taiar, Redha; Gremeaux-Bader, Vincent; Aminian, Kamiar [in: Human Interaction, Emerging Technologies and Future Applications II. Proceedings of the 2nd International Conference on Human Interaction and Emerging Technologies: Future Applications (IHIET – AI 2020), April 23-25, 2020, Lausanne, Switzerland]
    The increase of shipped consumer immersive virtual reality (IVR) up to 6 million units in 2019 shows the increasing popularity of this medium. Invests of 8 billion dollars are anticipated in the next five years for the training sector. With the development the question arise, what effects and advantages can be expected using IVR in human training? This paper reviews three important areas, when it comes to the design of immersive virtual reality trainings: 1. cognitive load, 2. spatial imagination and the contextual interference effect.
    04B - Beitrag Konferenzschrift
  • Vorschaubild
    Publikation
    Symbols and Functions in Human Machine Interface: Are Google Icons a Possible Solution for Intercultural Usability?
    (Springer, 03.04.2020) Christ, Oliver; Papageorgiou, Andreas; Mutuura, Kamalatharsi; Ahram, Tareq; Taiar, Redha; Gremeaux-Bader, Vincent; Aminian, Kamiar [in: Human Interaction, Emerging Technologies and Future Applications II. Proceedings of the 2nd International Conference on Human Interaction and Emerging Technologies: Future Applications (IHIET – AI 2020), April 23-25, 2020, Lausanne, Switzerland]
    We explored the possibility of taking icons from Android Smartphones, for the use in graphical user interfaces (GUI) in bakery sheeter. This idea was generated from the fact that Android Smartphones are sold worldwide and that the icons used in the menu should have a degree of popularity that most people could deal with. With this research question in mind we created a mixed method design for the study (qualitative and quantitative data). Results show that some icons were able to represent basic navigation function in industrial machines.
    04B - Beitrag Konferenzschrift
  • Vorschaubild
    Publikation
    Validation of Driving Simulation in a Virtual Reality Setting: The Effects of Age, Sex and Simulation Technology on Driving Behavior
    (Springer, 03.04.2020) Christ, Oliver; Kaufmann, Kaspar; Wehrli, Simon; Mistretta, Emanuel; Arisona, Stefan; Wyssenbach, Thomas; Schubiger, Simon; Tareq, Ahram; Taiar, Redha; Gremeaux-Bader, Vincent; Aminian, Kamiar [in: Human Interaction, Emerging Technologies and Future Applications II. Proceedings of the 2nd International Conference on Human Interaction and Emerging Technologies: Future Applications (IHIET – AI 2020), April 23-25, 2020, Lausanne, Switzerland]
    Rapid progress in virtual reality technology empowers immersive and naturalistic driving simulations also for low budget. The technology enables researcher with the means to test different variables in road traffic riskless and reproducible. In real traffic scenarios, differences in driving behavior and safety related-perception can be observed. The object of our study was to develop a low-budget driving simulation environment and to enable a riskless testing of future traffic scenarios.
    04B - Beitrag Konferenzschrift
  • Vorschaubild
    Publikation
    The Bayesian causal inference model benefits from an informed prior to predict proprioceptive drift in the rubber foot illusion
    (Springer, 21.08.2019) Schürmann, Tim; Vogt, Joachim; Christ, Oliver; Beckerle, Philipp [in: Cognitive Processing]
    Bayesian cognitive modeling has become a prominent tool for the cognitive sciences aiming at a deeper understanding of the human mind and applications in cognitive systems, e.g., humanoid or wearable robotics. Such approaches can capture human behavior adequately with a focus on the crossmodal processing of sensory information. We investigate whether the Bayesian causal inference model can estimate the proprioceptive drift observed in empirical studies.
    01A - Beitrag in wissenschaftlicher Zeitschrift
  • Vorschaubild
    Publikation
    Evaluation of Online Consulting Using Co-browsing: What Factors Are Related to Good User Experience?
    (Springer, 13.06.2019) Christ, Oliver; Mutuura, Kamalatharsi; Papageorgiou, Andreas; Ahram, Tareq; Falcão, Christianne [in: Advances in Usability and User Experience Proceedings of the AHFE 2019 International Conferences on Usability & User Experience, and Human Factors and Assistive Technology, July 24-28, 2019, Washington D.C., USA]
    Technological advancements have changed many, if not all industries. This paper focuses on changes for service providers. Many services have been implemented without the knowledge about their effectiveness and user acceptance. This paper evaluates a web browser-based support framework for banks that provides customers with assistance through text chat and co-browsing.
    04B - Beitrag Konferenzschrift
  • Vorschaubild
    Publikation
    Browserbasiertes Beratungssystem in der Bankenbranche
    (Gesellschaft für Arbeitswissenschaft, 27.02.2019) Christ, Oliver; Mutuura, Kamalatharsi; Papageorgiou, Andreas; Schmauder, Martin [in: Dokumentation des 65. Arbeitswissenschaftlichen Kongresses vom 27.02. bis 01.03.2019 am Institut für Arbeit und Gesundheit der Deutschen Gesetzlichen Unfallversicherung (IAG der DGUV) in Kooperation mit dem Institut für Technische Logistik und Arbeitssysteme. Dokumentation des 65. Arbeitswissenschaftlichen Kongresses vom 27.02. bis 01.03.2019 am Institut für Arbeit und Gesundheit der Deutschen Gesetzlichen Unfallversicherung (IAG der DGUV) in Kooperation mit dem Institut für Technische Logistik und Arbeitssysteme]
    Die Digitalisierung im Servicebereich hat viele Branchen er-reicht. Vielfach unerklärt sind die Effektivität und die Benutzerakzeptanz dieser elektronischen Beratungssysteme. Ziel der vorliegenden Studie war die Evaluation eines browserbasierten Beratungssystems für die Banken-branche.
    04B - Beitrag Konferenzschrift