Searched for: author:"Bles, W."
(1 - 20 of 72)

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Berthoz, A. (author), Bles, W. (author), Bülthoff, H.H. (author), Correia Grácio, B.J. (author), Feenstra, P. (author), Filliard, N. (author), Hühne, R. (author), Kemeny, A. (author), Mayrhofer, M. (author), Mulder, M. (author), Nusseck, H.G. (author), Pretto, P. (author), Reymond, G. (author), Schlüsselberger, R. (author), Schwandtner, J. (author), Teufel, H. (author), Vailleau, B. (author), van Paassen, M.M.R. (author), Vidal, M. (author), Wentink, M. (author)
Advanced driving simulators aim at rendering the motion of a vehicle with maximum fidelity, which requires increased mechanical travel, size, and cost of the system. Motion cueing algorithms reduce the motion envelope by taking advantage of limitations in human motion perception, and the most commonly employed method is just to scale down the...
article 2013
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Mert, A. (author), Bles, W. (author)
Introduction: In tilting trains partial alignment to the gravito-inertial force (GIF) in the curves seems to be the best tilt compensation to reduce the incidence of motion sickness. We investigated the effect of alignment to the GIF on the development of motion sickness during low-frequency horizontal motion. Methods: There were 12 healthy...
article 2011
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Mert, A. (author), Hak, L. (author), Bles, W. (author)
Introduction: Balance is negatively influenced by optokinetic stimuli. Fall research with these stimuli has been done with standing subjects. Less is known of the influence these stimuli have on risk of falling while walking. The objective of this study was to qualitatively investigate the influence of optokinetic roll stimuli on balance during...
conference paper 2011
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Mert, A. (author), Bles, W. (author), Wertheim, W. (author), TNO Defensie en Veiligheid (author)
article 2009
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Bles, W. (author), Groen, E. (author), TNO Defensie en Veiligheid (author)
The research facility DESDEMONA features a unique motion platform, combining a fully gimbaled cabin with the capability of producing sustained g-loads. Originally designed for ground-based simulation as well as training of spatial disorientation in aviation, the motion capabilities are also interesting for other areas. In this paper we will...
article 2009
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Correia Grácio, B.J. (author), Wentink, M. (author), Groen, E. (author), Bles, W. (author), TNO Defensie en Veiligheid (author)
In centrifuge simulators pilots experience the G-forces and fast G-onsets encountered in the real fighter aircraft. The motion cueing principle that drives these simulators is based on creating G-forces by increasing the centripetal force of the centrifuge through a rotation of the simulator arm. The centrifuge usually spins at a constant 1.4 G...
conference paper 2009
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Wentink, M. (author), Correia Grácio, B.J. (author), Bles, W. (author), TNO Defensie en Veiligheid (author)
In the real world in which we move around, inertial and visual motion are usually equal; what you see is what you feel. In a simulator, however, this is usually not the case. On the contrary, due to the relatively small motion space of even the largest simulators, the inertial motion cues must be filtered and scaled down considerably. Typically,...
conference paper 2009
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Mert, A. (author), Klöpping-Ketelaars, I. (author), Bles, W. (author), TNO Defensie en Veiligheid (author)
Motion sickness incidence (MSI) for vertical sinusoidal motion reaches a maximum at 0.167 Hz. Normal breathing frequency is close to this frequency. There is some evidence for synchronization of breathing with this stimulus frequency. If this enforced breathing takes place over a larger frequency range (0.05-0.8 Hz) and whether this contributes...
article 2009
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Feenstra, P.J. (author), Wentink, M. (author), Correia Grácio, B. (author), Bles, W. (author), TNO Defensie en Veiligheid (author)
The goal of this study was to assess the effect of an increasing motion space on the fidelity of driving simulation in the Desdemona research simulator. The experimental task was a standardized slalom maneuver where the car velocity was limited to 70 km/h. Subjective measures, which included eight statements on realism and task performance were...
conference paper 2009
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Correia Grácio, B. (author), Wentink, M. (author), Feenstra, P.J. (author), Mulder, M. (author), van Paassen, M.M. (author), Bles, W. (author), TNO Defensie en Veiligheid (author)
During advanced driving manoeuvres, drivers can be hypothesized to use all the available cues to optimize their performance. Fixed-base simulators are commonly used for training of these advanced driving manoeuvres, despite the fact that motion cues are not present. In this experiment we hypothesize that motion feedback improves driver...
conference paper 2009
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Wentink, M. (author), Grácio, B. (author), Groen, E. (author), Feenstra, P. (author), Bles, W. (author), TNO Defensie en Veiligheid (author)
conference paper 2008
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Bles, W. (author), de Graaf, J.E. (author), TNO Defensie en Veiligheid (author)
Desdemona simulator officieel in gebruik genomen
article 2008
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Bos, J.E. (author), Bles, W. (author), Groen, E.L. (author), TNO Defensie en Veiligheid (author)
This paper deals with visual-vestibular interactions as these occur when viewing images, and may cause motion sickness. Some basic vestibular matters fundamental to motion sickness are highlighted, such as the observation that people without functioning inner ears do not get sick from motion, including visual motion. Furthermore, the subjective...
article 2008
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Wentink, M. (author), Valente Pais, R. (author), Mayrhofer, Mi. (author), Feenstra, P. (author), Bles, W. (author), TNO Defensie en Veiligheid (author)
conference paper 2008
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Bles, W. (author), Wentink, M. (author), Mayrhofer, M. (author), de Graaf, B. (author), TNO Defensie en Veiligheid (author)
article 2007
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Feenstra, P.J. (author), Wentink, M. (author), Roza, Z.C. (author), Bles, W. (author), TNO Defensie en Veiligheid (author)
Desdemona is a moving-base research-simulator that was designed with a special focus on spatial disorientation demonstrations, flight simulation, and driving simulation. The cabin is equipped with a car mock-up that contains force-feedback on pedals and steering wheel, and out-the-window visuals. The cabin is mounted in a fully gimbaled system...
conference paper 2007
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Groen, E.L. (author), Clarke, A. (author), Bles, W. (author), Wuyts, F. (author), Paloski, W. (author), Clément, G. (author), TNO Defensie en Veiligheid (author)
This chapter describes the pros and cons of artificial gravity applications in relation to human sensory-motor functioning in space. Spaceflight creates a challenge for sensory-motor functions that depend on gravity, which include postural balance, locomotion, eye-hand coordination, and spatial orientation. The sensory systems, and in particular...
bookPart 2007
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Mayrhofer, M. (author), Langwallner, B. (author), Schlüsselberger, R. (author), Bles, W. (author), Wentink, M. (author)
The very unique and novel motion platform DESDEMONA was taken into start-up operation early this year. This next generation motion platform allows 6-DoF movement combined with the capability of producing sustained g-forces. These features make the simulator extremely valuable for future flight simulation applications as well as for...
conference paper 2007
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Wentink, M. (author), Bles, W. (author), Mayrhofer, M. (author), Feenstra, P.J. (author), Roza, Z.C. (author), TNO Defensie en Veiligheid (author)
conference paper 2007
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Mert, A. (author), Bles, W. (author), Nooij, S.A.E. (author), TNO Defensie en Veiligheid (author)
Introduction: In motion sickness desensitization programs, the motion sickness provocative stimulus is often a forward bending of the trunk on a rotating chair, inducing Coriolis effects. Since respiratory relaxation techniques are applied successfully in these courses, we investigated whether these repetitive trunk movements by themselves may...
article 2007
Searched for: author:"Bles, W."
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