Searched for: subject:"Perception"
(1 - 13 of 13)
document
de Wijk, R.A. (author), Zijlstra, N. (author), Mars, M. (author), de Graaf, C. (author), Prinz, J.F. (author), TNO Kwaliteit van Leven (author)
Two studies investigated the effect of a food's viscosity on bite size, bite effort and food intake using a standardized protocol in which subjects sipped through a straw every 20 s for a period of 15 min from one of two products, a chocolate-flavored dairy drink and a chocolate-flavored dairy semi-solid, matched for energy density. In the first...
article 2008
document
Groen, E.L. (author), de Graaf, B. (author), Bles, W. (author), Bos, J.E. (author), Kooi, F. (author), TNO Technische Menskunde (author)
In this paper we give an outline of the ground course on spatial disorientation that TNO Human Factor provides for military student aviators of the Royal Netherlands Airforce. During this one-day course a variety of laboratory equipment is used to let students experience and understand different disorienting phenomena and to make them aware of...
conference paper 2003
document
Groen, E.L. (author), Bos, J.E. (author), de Graaf, J.E. (author), Bles, W. (author)
According to the widely accepted sensory conflict theory, motion sickness arises in situations in which "the motion signals transmitted by the eyes, the vestibular system, and the non-vestibular proprioceptors are at variance either with one another or with what is expected from previous experience." Consequently, several types of sensory...
conference paper 1999
document
Bles, W. (author), Bos, J.E. (author), de Graaf, J.E. (author), Groen, E.L. (author), Wertheim, A.H. (author), TNO Technische Menskunde (author)
In reviewing the various forms of motion sickness the classical sensory rearrangement theory has been redefined by demonstrating that only one type of conflict is necessary and sufficient to explain all different kinds of motion sickness. A mathematical description is provided from the summarizing statement that "All situations which provoke...
article 1998
document
de Graaf, B. (author), Bles, W. (author), Bos, J.E. (author), TNO Technische Menskunde (author)
In an experiment with seventeen subjects interactions of visual roll motion stimuli and vestibular body tilt stimuli were examined in determining the subjective vertical. Interindi-vidual differences in weighting the visual information were observed, but in general visual and vestibular responses added in setting the vertical. Despite the...
article 1998
document
Bles, W. (author), de Graaf, B. (author), Bos, J.E. (author), TNO Technische Menskunde (author)
article 1996
document
Bos, J.E. (author), de Graaf, B. (author), TNO Technische Menskunde (author)
article 1996
document
Bos, J.E. (author), de Graaf, B. (author), Bles, W. (author), Wertheim, A.H. (author), TNO Technische Menskunde (author)
article 1996
document
de Graaf, B. (author), Bos, J.E. (author), Groen, E. (author), TNO Technische Menskunde (author)
In reply to a commentary of Dr. D.M. Merfeld on the paper "Saccular impact on Ocular Torsion", a plea is given for letting subjects themselves decide what the favour-able head position is during motion stimulation. This is preferable to an orientation imposed by the investigator, based on anatomical facts.
article 1996
document
Groen, E. (author), de Graaf, B. (author), Bles, W. (author), Bos, J.E. (author), TNO Technische Menskunde (author)
To assess a possible otolith contribution to effects observed following prolonged expo-sure to hyper gravity, we used video-oculography to measure ocular torsion during static and dynamic conditions of lateral body tilt (roll) before and after one hour of centrifugation with a Gx-load of 3G. Static tilt (from 0 to 57 deg. to either side) showed...
article 1996
document
de Graaf, B. (author), Bles, W. (author), Bos, J.E. (author), Groen, E. (author), TNO Technische Menskunde (author)
A hypothesis about the position of the eyes under weightlessness could be verified during parabolic flight. The eyes, namely, tort a few degrees inwards (cyclo-versional behaviour) during zero-G. The data suggest that the saccular otoliths contribute to ocular torsion.
conference paper 1995
document
Bles, W. (author), Jelmorini, M. (author), Bekkering, H. (author), de Graaf, B. (author), TNO Technische Menskunde (author)
A sensation of linear self-motion can be induced in a blindfolded stationary sitting subject, who keeps contact with a linearly moving platform (acceleration 0.1 m/s²) in the frontoparallel plane by means of a hand-over-hand walking action. When discordant suprathreshold vestibular information from the otoliths is added by moving the subject...
article 1995
document
de Graaf, B. (author), TNO Technische Menskunde (author)
Visuologie - oogbewegingen, bewegen, zien, zoekenVisuologie - oogbewegingen, bewegen, zien, zoeken.
doctoral thesis 1990
Searched for: subject:"Perception"
(1 - 13 of 13)