Searched for: author:"Houben, M.M.J."
(1 - 20 of 20)
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Meskers, A.J.H. (author), Houben, M.M.J. (author), Pennings, H.J.M. (author), Clément, G. (author), Groen, E.L. (author)
BACKGROUND: During large angles of self-tilt in the roll plane on Earth, measurements of the subjective visual vertical (SVV) in the dark show a bias towards the longitudinal body axis, reflecting a systematic underestimation of self-tilt. OBJECTIVE: This study tested the hypothesis that self-tilt is underestimated in partial gravity conditions,...
article 2021
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Pennings, H.J.M. (author), Oprins, E.A.P.B. (author), Wittenberg, H. (author), Houben, M.M.J. (author), Groen, E.L. (author)
BACKGROUND: Spatial disorientation (SD) remains a significant cause of accidents and near accidents. A variety of training methods have been used to assist pilots to anticipate the SD problem. The value of such training in the prevention of disorientation has been difficult to assess.METHODS: To study transfer of SD awareness training, we...
article 2020
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Bos, J.E. (author), van den Berg-Kroon, E.C.M. (author), Houben, M.M.J. (author), Kuiper, O.X. (author)
Car handling, and hence, safety, is affected by the way we estimate speed. Speed, however, is often underestimated in degraded visual environments, including virtual environments such as driving simulators. In simulators the visual and physical motion are typically incongruent as limited by quality and amplitude, respectively, which may cause a...
article 2019
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Houben, M.M.J. (author), Meeuwsen, T. (author)
TNO and the Royal Netherlands Airforce (RNLAF) integrated challenging stressors in a moving-base flight simulator, improving the operational realism of the simulated flight environment. This enables research on the effects of individual and combined stressors on flight performance, mental workload and physiological responses.
other 2017
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Bos, J.E. (author), Houben, M.M.J. (author), Groen, E.L. (author)
article 2016
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Groen, E.L. (author), Houben, M.M.J. (author), Bos, J.E. (author), Mumaw, R.J. (author)
TNO and Boeing developed a “Spatial Disorientation Identification Tool” (SDiT) to support the investigation of recorded aircraft motion for its potential to induce Spatial Disorientation (SD). The tool is based on a perception model that consists of transfer functions representing the dynamics in the vestibular system (semicircular canals and...
conference paper 2016
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Kurt, R.E. (author), Khalid, H. (author), Turan, O. (author), Houben, M.M.J. (author), Bos, J.E. (author), Helvacioglu, I.H. (author)
With modern trends of decrease in crew numbers on board ships together with increased operational demands and paperwork, crew fatigue and comfort have become more critical and are being given more importance. It is well known that environmental factors affect crew comfort and performance. The two outstanding factors which exist in the shipboard...
article 2016
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Ledegang, W.D. (author), Bos, J.E. (author), Houben, M.M.J. (author), Groen, E.L. (author)
This article reports on an exploratory study in a fixed-based simulator to investigate the possible advantage (more presence) and disadvantage (more simulator sickness) of enhancing the visual realism in terms of head-slaved motion parallax. The study was performed in a flight simulator. Since most tasks involved taxiing over a virtual airfield,...
conference paper 2015
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Dits, J. (author), Houben, M.M.J. (author), van der Steen, J. (author)
The vestibular organ is a sensor that measures angular and linear accelerations with six degrees of freedom (6DF). Complete or partial defects in the vestibular organ results in mild to severe equilibrium problems, such as vertigo, dizziness, oscillopsia, gait unsteadiness nausea and/or vomiting. A good and frequently used measure to quantify...
article 2013
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Vos, J. (author), Houben, M.M.J. (author), TNO Technische Menskunde (author)
In the present study relations between the level of impulse sounds and the observed proportion of behaviorally confirmed awakening reactions were determined. The sounds (shooting sounds, bangs produced by door slamming or by container transshipment, aircraft landings) were presented by means of loudspeakers in the bedrooms of 50 volunteers. The...
article 2013
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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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Vos, J. (author), Houben, M.M.J. (author)
Er bestaat al jaren behoefte aan meer inzicht in de slaapverstoring die omwonenden ondervinden van impulsachtige geluiden ten gevolge van containeroverslag in havengebieden en het laden en lossen in winkelcentra. Ter bepaling van de kans op ontwaakreacties als functie van het geluidniveau werden 22 proefpersonen gedurende 15 nachten thuis in hun...
conference paper 2012
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Houben, M.M.J. (author), Bos, J.E. (author), Groen, E.L. (author)
Motion sickness can occur in any motion environment to which a person is not adapted, varying from cars, boats, and planes to fun rides and virtual reality. With symptoms such as nausea, vomiting, headache, lethargy, dizziness, and loss of concentration it causes discomfort for passengers but also a decrease in task performance for crew....
report 2012
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Vos, J. (author), Houben, M.M.J. (author)
Onderzoek in het kader van het PIEK project opgedragen odor het ministerie van VROM naar effecten v an laden en lossen bij winkelcentra en havens.
conference paper 2011
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Vos, J. (author), Houben, M.M.J. (author), Vercammen, M.L.S. (author)
About two decades ago, Vercammen proposed a rating procedure for low frequency sounds. To enable refinements of this procedure, the present study addressed a few spectral and temporal issues. The investigation was carried out in the laboratory with 56 subjects ranging between 20 and 60 years of age. To increase our insight into the spectral...
article 2010
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Vos, J. (author), Houben, M.M.J. (author), van der Ploeg, F. (author), Buikema, E. (author)
The objective of the present laboratory studies was to enable refinements of the current rating procedure for low frequency sounds. To increase our insight into a relevant spectral issue, groups of adjacent frequency bands around 40, 50, and 63 Hz were presented at various sound level combinations. It was concluded that an energy-based summation...
conference paper 2010
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Houben, M.M.J. (author), Bos, J.E. (author), TNO Defensie en Veiligheid (author)
Motion sickness is generally caused by not being able to correctly estimate one’s self-motion. In the case of crew in, e.g., the command centre of a naval vessel, a nauseating conflict exists between what they see (the stable interior of the ship) and what they feel (the motion of the ship). To reduce the conflict, we designed and tested an ...
conference paper 2010
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Goumans, J. (author), Houben, M.M.J. (author), Dits, J. (author), van der Steen, J. (author), TNO Defensie en Veiligheid (author)
The three-dimensional vestibulo-ocular reflex (3D VOR) ideally generates compensatory ocular rotations not only with a magnitude equal and opposite to the head rotation but also about an axis that is collinear with the head rotation axis. Vestibulo-ocular responses only partially fulfill this ideal behavior. Because animal studies have shown...
article 2010
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Houben, M.M.J. (author), Goumans, J. (author), van der Steen, J. (author), TNO Defensie en Veiligheid (author)
PURPOSE. This study compared the performance of a videobased infrared three-dimensional eye tracker device (Chronos) with the scleral search coil method. METHODS. Three-dimensional eye movements were measured simultaneously with both systems during fixation, saccades, optokinetic stimulation, and vestibular stimulation. RESULTS. Comparison of...
article 2006
Searched for: author:"Houben, M.M.J."
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