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de Winkel, J. (author)The ecological impact of today’s battery-powered Internet of Things (IoT) is troubling. Technology advancements that reduce the reliance on batteries could blunt the environmental impact of the projected billions of IoT devices. With the emergence of low-cost, small, and high-performance microcontrollers, along with more efficient micro-energy...doctoral thesis 2023
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Happee, R. (author), Kotian, V. (author), de Winkel, K.N. (author)Background: To counteract gravity, trunk motion, and other perturbations, the human head–neck system requires continuous muscular stabilization. In this study, we combine a musculoskeletal neck model with models of sensory integration (SI) to unravel the role of vestibular, visual, and muscle sensory cues in head–neck stabilization and relate SI...journal article 2023
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Talsma, Tessa M.W. (author), Hassanain, Omar (author), Happee, R. (author), de Winkel, K.N. (author)Increasing levels of vehicle automation are envisioned to allow drivers to engage in other activities but are also likely to increase the incidence of Carsickness or Motion Sickness (MS). Ideally, MS is studied in a safe and controlled environment, such as a driving simulator. However, only few studies address the suitability of driving...journal article 2023
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de Winkel, K.N. (author), Irmak, T. (author), Happee, R. (author), Shyrokau, B. (author)A prime concern for automated vehicles is motion comfort, as an uncomfortable ride may reduce acceptance of the technology amongst the general population. However, it is not clear how transient motions typical for travelling by car affect the experience of comfort. Here, we determine the relation between properties of vehicle motions (i.e.,...journal article 2023
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Irmak, T. (author), Pool, D.M. (author), de Winkel, K.N. (author), Happee, R. (author)The human motion perception system has long been linked to motion sickness through state estimation conflict terms. However, to date, the extent to which available perception models are able to predict motion sickness, or which of the employed perceptual mechanisms are of most relevance to sickness prediction, has not been studied. In this...journal article 2023
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de Winkel, J. (author), Tang, Haozhe (author), Pawełczak, Przemysław (author)We present an architecture for intermittently-powered wireless communication systems that does not require any changes to the official protocol specification. Our core idea is to save the intermediate state of the wireless protocol to non-volatile memory within each connection interval. The protocol state is then deterministically restored at...conference paper 2022
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Irmak, T. (author), Kotian, V. (author), Happee, R. (author), de Winkel, K.N. (author), Pool, D.M. (author)The relationship between the amplitude of motion and the accumulation of motion sickness in time is unclear. Here, we investigated this relationship at the individual and group level. Seventeen participants were exposed to four oscillatory motion stimuli, in four separate sessions, separated by at least 1 week to prevent habituation. Motion...journal article 2022
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de Winkel, K.N. (author), Irmak, T. (author), Kotian, V. (author), Pool, D.M. (author), Happee, R. (author)High levels of vehicle automation are expected to increase the risk of motion sickness, which is a major detriment to driving comfort. The exact relation between motion sickness and discomfort is a matter of debate, with recent studies suggesting a relief of discomfort at the onset of nausea. In this study, we investigate whether discomfort...journal article 2022
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de Winkel, J. (author), Hoefnagel, T.S. (author), Blokland, B.T. (author), Pawełczak, Przemysław (author)Debugging and testing battery-free intermittently-powered systems is notoriously difficult. This is not only due to the additional complexity of maintaining state through power failures but also due to the lack of proper tools to test and debug these systems. As a solution, we present DIPS: a fully-featured hardware debugger for battery-free...conference paper 2022
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de Winkel, K.N. (author), Talsma, Tessa M.W. (author), Happee, R. (author)Driving simulators are an increasingly important tool to develop vehicle functionalities and to study driver or passenger responses. A major hindrance to the use and validity of such studies is Simulator Sickness (SS). Several studies have suggested a positive relation between improvements in simulator fidelity and the likelihood of sickness....review 2022
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de Winkel, J. (author), Kortbeek, V. (author), Hester, Josiah (author), Pawełczak, Przemysław (author)Any future mobile electronic device with which a user interacts (smartphone, hand-held game console) should not pollute our planet. Consequently, designers need to rethink how to build mobile devices with fewer components that negatively impact the environment (by replacing batteries with energy harvesting sources) while not compromising the...journal article 2021
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de Winkel, K.N. (author), Pretto, Paolo (author), Nooij, Suzanne A.E. (author), Cohen, Iris (author), Bülthoff, Heinrich H. (author)The risk of motion sickness is considerably higher in autonomous vehicles than it is in human-operated vehicles. Their introduction will therefore require systems that mitigate motion sickness. We investigated whether this can be achieved by augmenting the vehicle interior with additional visualizations. Participants were immersed in motion...journal article 2021
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de Winkel, K.N. (author), Edel, Ellen (author), Happee, R. (author), Bülthoff, Heinrich H. (author)Percepts of verticality are thought to be constructed as a weighted average of multisensory inputs, but the observed weights differ considerably between studies. In the present study, we evaluate whether this can be explained by differences in how visual, somatosensory and proprioceptive cues contribute to representations of the Head In Space ...journal article 2021
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Bruschetta, Mattia (author), de Winkel, K.N. (author), Mion, Enrico (author), Pretto, Paolo (author), Beghi, Alessandro (author), Bülthoff, Heinrich H. (author)In dynamic driving simulators, the experience of operating a vehicle is reproduced by combining visual stimuli generated by graphical rendering with inertial stimuli generated by platform motion. Due to inherent limitations of the platform workspace, inertial stimulation is subject to shortcomings in the form of missing cues, false cues, and...journal article 2021
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Individual motion perception parameters and motion sickness frequency sensitivity in fore-aft motionIrmak, T. (author), de Winkel, K.N. (author), Pool, D.M. (author), Bülthoff, Heinrich H. (author), Happee, R. (author)Previous literature suggests a relationship between individual characteristics of motion perception and the peak frequency of motion sickness sensitivity. Here, we used well-established paradigms to relate motion perception and motion sickness on an individual level. We recruited 23 participants to complete a two-part experiment. In the first...journal article 2021
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de Winkel, J. (author), Kortbeek, V. (author), Hester, Josiah (author), Pawełczak, Przemysław (author)We present ENGAGE, the first battery-free, personal mobile gaming device powered by energy harvested from the gamer actions and sunlight. Our design implements a power failure resilient Nintendo Game Boy emulator that can run off-the-shelf classic Game Boy games like Tetris or Super Mario Land. This emulator is capable of intermittent...journal article 2020
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- de Winkel, G.D. (author), Lu, L.H. (author), Wardenier, J. (author) report 1997
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- de Winkel, G.D. (author) report 1997
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- de Winkel, G.D. (author), Lu, L.H. (author), Wardenier, J. (author) report 1996
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- de Winkel, G.D. (author) report 1995