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Correia Grácio, B.J. (author), de Winkel, K.N. (author), Groen, E.L. (author), Wentink, M. (author), Bos, J.E. (author)
Without visual feedback, humans perceive tilt when experiencing a sustained linear acceleration. This tilt illusion is commonly referred to as the somatogravic illusion. Although the physiological basis of the illusion seems to be well understood, the dynamic behavior is still subject to discussion. In this study, the dynamic behavior of the...
article 2013
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Houtkamp, J.M. (author), Toet, A. (author), Bos, F.A. (author)
The authors added task-relevant sounds to a computer-mediated instructor in-the-loop virtual training for firefighter commanders in an attempt to raise the engagement and arousal of the users. Computer-mediated training for crew commanders should provide a sensory experience that is sufficiently intense to make the training viable and effective....
article 2012
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Bos, J.E. (author), Houben, M.M.J. (author), Lindenberg, J. (author)
Human performance has been shown to be negatively correlated with seasickness. By reducing crew, ship size, and hence redundancy, sickness induced risks increase exponentially. Although medication is effective, it also causes drowsiness. Non-pharmacological countermeasures are scarce, the most popular one being to look at the horizon. We...
conference paper 2012
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Houben, M.M.J. (author), Kurt, R. (author), Khalid, H. (author), Zoet, P. (author), Bos, J.E. (author), Turan, O. (author)
Within the EU FP7 project SILENV, noise and vibration measurements were carried out on several ships. These objective measures were accompanied by subjective measures recorded through questionnaires. With this, we developed models describing the relationship between the levels of noise and vibration on board ships and subjective ratings on...
conference paper 2012
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Correia Grácio, B.J. (author), Wentink, M. (author), Bos, J.E. (author), van Paassen, M.M. (author), Mulder, M. (author)
In motion simulation, motion cueing algorithms are used to transform vehicle inertial cues into inertial cues that are within the simulator physical limits. Most motion cueing algorithms aim to minimize the error between these vehicle inertial cues and those generated by the simulator. Although this is one way to approach the problem, one can...
conference paper 2012
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Correia Grácio, B.J. (author), Wentink, M. (author), Bos, J.E. (author), van Paassen, M.M. (author), Mulder, M. (author)
In the field of motion simulation it was found that a visual amplitude equal to the inertial amplitude does not always provide the best perceived match between visual and inertial motion. This result is thought to be caused by the “quality” of the motion cues delivered by the simulator motion and visual systems. This paper studies how different...
conference paper 2012
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Correia Grácio, B.J. (author), Bos, J.E. (author)
Humans are able to estimate the vertical direction of an Earth fixed reference frame, which estimate is known as the subjective vertical (SV). To identify the SV, a distinction must be made between accelerations due to self-motion and gravity. Previous studies on this topic measured the SV using a variety of methods possibly affecting the...
article 2012
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Khalid, H. (author), Turan, O. (author), Bos, J.E. (author)
Subjective vertical (SV) conflict theory postulates that motion sickness is elicited in all situations that lead to a difference between the sensed and subjective verticals. The sensed vertical is Earth's gravity as perceived by human sense modalities; the subjective vertical is also Earth's gravity, but in accordance with the expectations of...
article 2011
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Feenstra, P.J. (author), Bos, J.E. (author), van Gent, R.N.H.W. (author)
A simulator study has been conducted demonstrating a positive effect on airsickness by utilizing a 3D artificial Earth-fixed visual pattern. Participants were exposed to the same turbulent physical aircraft motion in a simulator three times in a row, each time using a different visual cue. In one condition only the interior of the simulator...
article 2011
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Bos, J.E. (author)
The most cited theory on motion sickness is the conflict theory by Reason and Brand (1975) [1], stating that motion sickness occurs due to a conflict between the senses and stored patterns of motion. In addition, there seems to be evidence for another theory stating that postural instability is a necessary and sufficient condition preceding...
article 2011
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Nooij, S.A.E. (author), Vanspauwen, R. (author), Bos, J.E. (author), Wuyts, F.L. (author)
During the first days of spaceflight, about 50-70% of the astronauts experience symptoms of Space Motion Sickness (SMS). It has been proposed that an asymmetry between the left and right otolith organs contributes to an astronaut's individual susceptibility. A recently developed test to measure unilateral utricular function enabled us to re...
article 2011
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Groen, E. (author), Bos, J.E. (author), Nooij, S.A.E. (author)
article 2011
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Khalid, H. (author), Turan, O. (author), Bos, J.E. (author), Incecik, A. (author)
Subjective-vertical conflict theory (Bles et al., 1998) postulates that all motion sickness provoking situations are characterized by a condition in which the vertical (gravity) sensed by the visual, vestibular and non-vestibular proprioceptors are at variance with the subjective (expected) vertical. SV-conflict models have successfully been...
article 2011
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Hosman, R.J.A.W. (author), Cardullo, F.M. (author), Bos, J.E. (author)
Correct perception of self motion is of vital importance for both the control of our position and posture when moving around in our environment. With the development of human controlled vehicles as bicycles, cars and aircraft motion perception became of interest for the understanding of vehicle control. For flight simulation the understanding of...
conference paper 2011
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Bos, J.E. (author)
article 2011
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Bos, J.E. (author)
public lecture 2011
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van Rooy, I. (author), Brouwer, A.M. (author), Klis, S. (author), Bos, J.E. (author), Bruintjes, T. (author), TNO Defensie en Veiligheid (author)
article 2010
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Bos, J.E. (author)
article 2010
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Bos, J.E. (author), Hoogervorst, M.A. (author), Brouwer, A.M. (author), TNO Defensie en Veiligheid (author)
article 2010
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