Searched for: subject%3A%22Visual%255C%2Bperception%22
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Marques-Carneiro, J.E. (author), Polgari, P. (author), Koning, E. (author), Seyller, E. (author), Martin, B. (author), van der Burg, E. (author), Giersch, A. (author)
Learning and imitating a complex motor action requires to visually follow complex movements, but conscious perception seems too slow for such tasks. Recent findings suggest that visual perception has a higher temporal resolution at an unconscious than at a conscious level. Here we investigate whether high-temporal resolution in visual perception...
article 2020
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Fu, W. (author), Landman, H.M. (author), van Paassen, M.M. (author), Mulder, M. (author)
We discuss an extension of the basic principles underlying the human haptic just noticeable difference (JND) in perceiving a manipulator's mechanical properties from force feedback. Two cases are studied: 1) the JND in perceiving the stiffness of manipulators with various masses; 2) the JND in perceiving the damping of a combined mass-spring...
article 2018
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Toet, A. (author), Hogervorst, M.A. (author), Nikolov, S.G. (author), Lewis, J.J. (author), Dixon, T.D. (author), Bull, D.R. (author), Canagarajah, C.N. (author), TNO Defensie en Veiligheid (author)
The increasing availability and deployment of imaging sensors operating in multiple spectral bands has led to a large research effort in image fusion, resulting in a plethora of pixel-level image fusion algorithms. However, the cognitive aspects of multisensor image fusion have not received much attention in the development of these methods. In...
article 2010
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Koelewijn, T. (author), Bronkhorst, A. (author), Theeuwes, J. (author), TNO Defensie en Veiligheid (author)
Multisensory integration and crossmodal attention have a large impact on how we perceive the world. Therefore, it is important to know under what circumstances these processes take place and how they affect our performance. So far, no consensus has been reached on whether multisensory integration and crossmodal attention operate independently...
article 2010
document
Koelewijn, T. (author), Bronkhorst, A. (author), Theeuwes, J. (author), TNO Defensie en Veiligheid (author)
There is debate in the crossmodal cueing literature as to whether capture of visual attention by means of sound is a fully automatic process. Recent studies show that when visual attention is endogenously focused sound still captures attention. The current study investigated whether there is interaction between exogenous auditory and visual...
article 2009
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Zekveld, A.A. (author), Kramer, S.E. (author), Kessens, J.M. (author), Vlaming, M.S.M.G. (author), Houtgast, T. (author), TNO Defensie en Veiligheid (author)
This study examined the subjective benefit obtained from automatically generated captions during telephone-speech comprehension in the presence of babble noise. Short stories were presented by telephone either with or without captions that were generated offline by an automatic speech recognition (ASR) system. To simulate online ASR, the word...
article 2009
document
Brouwer, A.-M. (author), Knill, D.C. (author), TNO Defensie en Veiligheid (author)
We investigated whether humans use a target's remembered location to plan reaching movements to targets according to the relative reliabilities of visual and remembered information. Using their index finger, subjects moved a virtual object from one side of a table to the other, and then went back to a target. In some trials, the target shifted...
article 2009
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van der Burg, E. (author), Olivers, C.N.L. (author), Bronkhorst, A.W. (author), Theeuwes, J. (author), TNO Defensie en Veiligheid (author)
The majority of studies investigating interactions between vision and touch have typically explored single events, presenting one object at a time. The present study investigates how tactile-visual interactions affect competition between multiple visual objects in more dynamic cluttered environments. Participants searched for a horizontal or...
article 2009
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van der Burg, E. (author), Olivers, C.N.L. (author), Bronkhorst, A.W. (author), Theeuwes, J. (author), TNO Defensie en Veiligheid (author)
Participants performed an attentional blink (AB) task including digits as targets and letters as distractors within the visual and auditory domains. Prior to the rapid serial visual presentation, a visual or auditory prime was presented in the form of a digit that was identical to the second target (T2) on 50% of the trials. In addition to the ...
article 2008
document
van Erp, J.B.F. (author), TNO Defensie en Veiligheid (author)
Vibrotactile mobility systems present spatial information such as the direction of a waypoint through a localized vibration on the torso. Using these systems requires the ability to determine the absolute location of the stimulus. Because data are available only on the ability to determine the relative location of stimuli on the torso, we...
article 2008
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van der Burg, E. (author), Olivers, C.N.L. (author), Bronkhorst, A.W. (author), Theeuwes, J. (author), TNO Defensie en Veiligheid (author)
Searching for an object within a cluttered, continuously changing environment can be a very time-consuming process. The authors show that a simple auditory pip drastically decreases search times for a synchronized visual object that is normally very difficult to find. This effect occurs even though the pip contains no information on the location...
article 2008
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van der Burg, E. (author), Olivers, C.N.L. (author), Bronkhorst, A.W. (author), Koelewijn, T. (author), Theeuwes, J. (author), TNO Defensie en Veiligheid (author)
The second of two targets is often missed when presented shortly after the first target—a phenomenon referred to as the attentional blink (AB). Whereas the AB is a robust phenomenon within sensory modalities, the evidence for cross-modal ABs is rather mixed. Here, we test the possibility that the absence of an auditory–visual AB for visual...
article 2007
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Vladusich, T. (author), Lucassen, M.P. (author), Cornelissen, F.W. (author), TNO Defensie en Veiligheid (author)
article 2006
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van Erp, J.B.F. (author), van Veen, H.A.H.C. (author), TNO Defensie en Veiligheid (author)
Orienting oneself in space is not an easy task. On Earth, we combine visual, vestibular and pressure cues into a coherent concept of up and down. Since there are no cues from gravity in space, astronauts have to adjust the way they determine up from down, with the possible risk of space motion sickness. In three tasks performed by one astronaut...
article 2006
document
Beintema, J.A. (author), Georg, K. (author), Lappe, M. (author)
The visual perception of human movement from sparse point-light walkers is often believed to rely on local motion analysis. We investigated the role of local motion in the perception of human walking, viewed from the side, in different tasks. The motion signal was manipulated by varying point lifetime. We found the task of coherence...
article 2006
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McKee, R.H. (author), Lammers, J.H.C.M. (author), Hoogendijk, E.M.G. (author), Emmen, H.H. (author), Muijser, H. (author), Barsotti, D.A. (author), Owen, D.E. (author), Kulig, B.M. (author), TNO Kwaliteit van Leven (author)
As a preliminary step to evaluating the acute neurobehavioral effects of hydrocarbon solvents and to establish a working model for extrapolating animal test data to humans, joint neurobehavioral/toxicokinetic studies were conducted which involved administering ethanol to rats and volunteers. The specific objectives of the present studies were to...
article 2006
document
Bos, J.E. (author), TNO Defensie en Veiligheid (author)
Wagenziekte is geen ziekte. Rij rustig (optrekken, afremmen, bochten nemen). Zorg voor voldoende zicht naar buiten en frisse lucht. Klop wagenziekteproblemen niet op. Koffie is slecht, cola helpt.
bookPart 2005
document
Vreugdenhil, H.J.I. (author), Emmen, H.H. (author), Mulder, P.G.H. (author), Weisglas-Kuperus, N. (author), TNO Voeding (author)
PCBs are known for their neurotoxic properties, especially on the developing brain. To increase insight into the neurotoxic effects of PCB exposure, the authors studied the effects of perinatal exposure to environmental levels of these compounds on different neuropsychological domains. In 9-year-old children of the Rotterdam PCB-dioxin cohort,...
article 2004
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Groen, E.L. (author), Bles, W. (author), TNO Technische Menskunde (author)
We examined to what extent body tilt may augment the perception of visually simulated linear self acceleration. Fourteen subjects judged visual motion profiles of fore-aft motion at four different frequencies between 0.04-0.33 Hz, and at three different acceleration amplitudes (0.44, 0.88 and 1.76 m/s2). Simultaneously, subjects were tilted...
article 2004
document
Bos, J.E. (author), Bles, W. (author), TNO Technische Menskunde (author)
Motion sickness is not only elicited by certain kinds of self-motion, but also by motion of a visual scene. In case of the latter, optokinetic drums are often used and a visual-vestibular conflict is assumed to cause the sickness. When the rotation axis is Earth vertical however, different studies show different results. Here, we propose that...
article 2004
Searched for: subject%3A%22Visual%255C%2Bperception%22
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