297 research outputs found
Adapting Visual Complexity Based on Electrodermal Activity Improves Performance in Virtual Reality
No full textMobile HCI 2023 Full paper
Francesco Chiossi, Yagiz Turgut, Robin Welsch, and Sven Mayer. 2023. Adapting Visual Complexity Based on
Electrodermal Activity Improves Working Memory Performance in Virtual Reality. Proc. ACM Hum.-Comput.
Interact. 7, MHCI, Article 196 (September 2023), 26 pages. https://doi.org/10.1145/360424
A Conversation with Roger Welsch
No full textIn this session, moderated by Barre Toelken and William A. "Bert" Wilson, audience members have the opportunity to discuss Roger Welsch's plenary lecture, and his other works and ideas, with the author
Robin Welsch's Quick Files
No full textThe Quick Files feature was discontinued and it’s files were migrated into this Project on March 11, 2022. The file URL’s will still resolve properly, and the Quick Files logs are available in the Project’s Recent Activity
BACKGROUND TO THE INTRODUCTION OF HIGH YIELDING VARIETIES OF RICE IN THAILAND
No full textThis paper describes Thailand's experience to date with new technology in rice, namely new high yielding varieties with associated inputs, which forms one part of the "green revolution." First, the historical background in exports, production, and domestic marketing and pricing is presented. Next the significant developments in rice research in Thailand are described, followed by a brief outline of the adoption of new varieties. In the final section, some implications are drawn for future developments, based on the experience gained until now.Crop Production/Industries,
Adapting Visual Complexity Based on Electrodermal Activity Improves Working Memory Performance in Virtual Reality
No full textPublisher Copyright: © 2023 ACM.Biocybernetic loops encompass users' state detection and system adaptation based on physiological signals. Current adaptive systems limit the adaptation to task features such as task difficulty or multitasking demands. However, virtual reality allows the manipulation of task-irrelevant elements in the environment. We present a physiologically adaptive system that adjusts the virtual environment based on physiological arousal, i.e., electrodermal activity. We conducted a user study with our adaptive system in social virtual reality to verify improved performance. Here, participants completed an n-back task, and we adapted the visual complexity of the environment by changing the number of non-player characters. Our results show that an adaptive virtual reality can control users' comfort, performance, and workload by adapting the visual complexity based on physiological arousal. Thus, our physiologically adaptive system improves task performance and perceived workload. Finally, we embed our findings in physiological computing and discuss applications in various scenarios.Peer reviewe
Society's Attitudes Towards Human Augmentation and Performance Enhancement Technologies (SHAPE) Scale
No full text| openaire: EC/H2020/952026/EU//HumanE-AI-NetHuman augmentation technologies (ATs) are a subset of ubiquitous on-body devices designed to improve cognitive, sensory, and motor capacities. Although there is a large corpus of knowledge concerning ATs, less is known about societal attitudes towards them and how they shift over time. To that end, we developed The Society's Attitudes Towards Human Augmentation and Performance Enhancement Technologies (SHAPE) Scale, which measures how users of ATs are perceived. To develop the scale, we first created a list of possible scale items based on past work on how people respond to new technologies. The items were then reviewed by experts. Next, we performed exploratory factor analysis to reduce the scale to its final length of thirteen items. Subsequently, we confirmed test-retest validity of our instrument, as well as its construct validity. The SHAPE scale enables researchers and practitioners to understand elements contributing to attitudes toward augmentation technology users. The SHAPE scale assists designers of ATs in designing artifacts that will be more universally accepted.Peer reviewe
A Pilot Study Comparing ChatGPT and Google Search in Supporting Visualization Insight Discovery
No full textPublisher Copyright: © 2024 Copyright for this paper by its authors.; Workshops at the International Conference on Intelligent User Interfaces, IUI-WS 2024 ; Conference date: 18-03-2024 Through 18-03-2024The popularity of large language models (LLMs) provides new possibilities for deriving visualization insights, integrating human and machine intelligence. However, we have yet to understand how a contextualized LLM compares with the traditional search in supporting visualization insight discovery. To this end, we conducted a between-subjects study with 25 participants to compare user insight generation with chat/search on a CO2 Explorer. The Chat condition has ChatGPT contextualized with the data, user tasks, and interactions as programmed system prompts. Results show both systems have their merits and demerits: ChatGPT affords users to ask more diverse questions but can produce wrong answers; Search provides information sources, making the answer more reliable, but users can fail to find the answer. This study prompts us to synthesize them in a future study for reliable and efficient information retrieval.Peer reviewe
Understanding the Influence of Electrical Muscle Stimulation on Motor Learning: Enhancing Motor Learning or Disrupting Natural Progression?
No full textPublisher Copyright: © 2025 Copyright held by the owner/author(s).Electrical Muscle Stimulation (EMS) induces muscle movement through external currents, offering a novel approach to motor learning. Researchers investigated using EMS as an alternative to conventional non-movement-inducing feedback techniques, such as vibrotactile and electrotactile feedback. While EMS shows promise in areas such as dance, sports, and motor skill acquisition, neurophysiological models of motor learning conflict about the impact of externally induced movements on sensorimotor representations. This study evaluated EMS against electrotactile feedback and a control condition in a two-session experiment assessing fast learning, consolidation, and learning transfer. Our results suggest an overall positive impact of EMS in motor learning. Although traditional electrotactile feedback had a higher learning rate, EMS increased the learning plateau, as measured by a three-factor exponential decay model. This study provides empirical evidence supporting EMS as a plausible method for motor augmentation and skill transfer, contributing to understanding its role in motor learning.Peer reviewe
Social MediARverse : investigating users’ social media content sharing and consuming intentions with location-based AR
No full textPublisher Copyright: © The Author(s) 2025. | openaire: EC/HE/101136006/EU//XTREMEAugmented Reality (AR) is evolving to become the next frontier in social media, merging physical and virtual reality into a living metaverse, a Social MediARverse. With this transition, we must understand how different contexts—public, semi-public, and private—affect user engagement with AR content. We address this gap in current research by conducting an online survey with 110 participants, showcasing 36 AR videos, and polling them about the content’s fit and appropriateness. Specifically, we manipulated these three spaces, two forms of dynamism (dynamic vs. static), and two dimensionalities (2D vs. 3D). Our findings reveal that dynamic AR content is generally more favorably received than static content. Additionally, users find sharing and engaging with AR content in private settings more comfortable than in others. By this, the study offers valuable insights for designing and implementing future Social MediARverses and guides industry and academia on content visualization and contextual considerations.Peer reviewe
Anfangsgründe der Volkssouveränität
No full textKant's 'Staatsrecht' in the "Metaphysik der Sitten" very likely represents the sharpest analysis and critique of democratic modernity after 1789. This, however, had to remain unrecognized as long as the repeatedly lamented problematic nature of this late text was attributed either to the alleged senility of the author, or else confusion created in the course of the printing process was blamed for its inscrutable composition. In fact, however, it is an expression of the brilliance of a philosophical rhetoric that has remained unexplored to this day and must be regarded as the culmination and pièce de résistance of Kant's oeuvre. By focussing the attention to this piece of writing for the first time in the history of Kant scholarship, Martin Welsch uncovers a hitherto unnoticed variant of the notion of radical popular sovereignty that sheds new light on our political present
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