Searched for: subject:"Perception"
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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
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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
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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 Kwaliteit van Leven (author)
OBJECTIVES: The aim of this study was to evaluate the benefit that listeners obtain from visually presented output from an automatic speech recognition (ASR) system during listening to speech in noise. DESIGN: Auditory-alone and audiovisual speech reception thresholds (SRTs) were measured. The SRT is defined as the speech-to-noise ratio at which...
article 2008
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Vogel, I. (author), Brug, J. (author), Hosli, E.J. (author), van der Ploeg, C.P.B. (author), Raat, H. (author), TNO Kwaliteit van Leven (author)
Objective: To explore adolescents' behaviors and opinions about exposure to loud music from MP3 players. Study design: We conducted a qualitative analysis of focus-group discussions with adolescents aged 12 to 18 years from 2 large secondary schools (1 urban and 1 rural) for pre-vocational and pre-university education. The semi-structured...
article 2008
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Toet, A. (author), Jansen, S.E.M. (author), Delleman, N.J. (author), TNO Defensie en Veiligheid (author)
Effects of field-of-view restrictions on the speed and accuracy of participants performing a real-world manoeuvring task through an obstacled environment were investigated. Although field-of-view restrictions are known to affect human behaviour and to degrade performance for a range of different tasks, the relationship between human manoeuvring...
article 2007
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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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Engelen, L. (author), van den Keybus, P.A.M. (author), de Wijk, R.A. (author), Veerman, E.C.I. (author), Amerongen, A.V.N. (author), Bosman, F. (author), Prinz, J.F. (author), van der Bilt, A. (author), TNO Kwaliteit van Leven (author)
Saliva is expected to be of significance for the perception of food stimuli in the mouth. Mixing the food with saliva, including breakdown and dilution, is considered to be of large importance for semi-solids as these products are masticated without chewing. It is known that there are large variations in composition of saliva originating from...
article 2007
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Alferdinck, J.W.A.M. (author), TNO Defensie en Veiligheid (author)
During night-time driving hazardous objects often appear at mesopic light levels, which are typically measured using light meters with a spectral sensitivity that is only valid for photopic light levels. In order to develop suitable mesopic models a target detection experiment was performed in a driving simulator. While subjects drove along a...
article 2006
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Mojet, J. (author), Köster, E.P. (author), TNO Kwaliteit van Leven (author)
Memory for texture plays an important role in food expectations. After fasting overnight, subjects (41 women, 35 men, age 19-60 years) received a breakfast including breakfast drink, biscuits and yoghurt. Subsequently, they rated their hunger feelings every hour, and returned for a taste experiment in the evening. When unexpectedly confronted...
article 2005
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Bos, J.E. (author), van Erp, J.B.F. (author), Groen, E.L. (author), van Veen, H.J. (author), TNO Defensie en Veiligheid (author)
This paper shows that tactile stimulation can override vestibular information regarding spinning sensations and eye movements. However, we conclude that the current data do not support the hypothesis that tactile stimulation controls eye movements directly. To this end, twenty-four subjects were passively disoriented by an abrupt stop after an...
article 2005
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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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Bakker, N.H. (author), Passenier, P.O. (author), Werkhoven, P.J. (author), TNO Technische Menskunde (author)
The type of navigation interface in a virtual environment (VE) - head slaved or indirect - determines whether or not proprioceptive feedback stimuli are present during movement. In addition, teleports can be used, which do not provide continuous movement but, rather, discontinuously displace the viewpoint over large distances. A two-part...
article 2003
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Engelen, L. (author), de Wijk, R.A. (author), Prinz, J.F. (author), Janssen, A.M. (author), Weenen, H. (author), Bosman, F. (author)
This study examined the effect of oral and product temperature on the perception of texture and flavor attributes. A trained panel assessed 21 texture and flavor attributes in one high-fat and one low-fat product of two semi-solids: custard dessert and mayonnaise. The products were evaluated at 10, 22 or 35°C in combination with oral...
article 2003
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Engelen, L. (author), de Wijk, R.A. (author), Prinz, J.F. (author), Janssen, A.M. (author), van der Bilt, A. (author), Weenen, H. (author), Bosman, F. (author)
The effect of adding saliva or a saliva-related fluid (α-amylase solution and water) to custard prior to ingestion on the sensory ratings of odour, flavour and lip-tooth-, mouth- and after-feel sensations was investigated. Saliva had previously been collected from the subjects and each subject received his/her own saliva. Sixteen subjects from a...
article 2003
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Wertheim, A.H. (author), Kemper, H.C.G. (author), Heus, R. (author)
In previous studies on physical fatigue during simulated ship movements, the apparent exhaustion of subjects after experimentation suggested that the traditional index of physical workload, oxygen consumption expressed as the percentage of peak oxygen consumption (VO2-peak) measured in a separate graded exercise test (GXT), underestimates...
article 2002
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van Winsum, W. (author)
18 Subjects were tested in a simulator to assess whether choice of time headway in car-following is related to individual differences in perceptual-motor skills. Drivers with a larger preferred time headway committed larger steering errors while driving on a winding road and were less accurate in maintaining a constant distance to a lead vehicle...
article 1999
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Wertheim, A.H. (author), Bos, J.E. (author), Bles, W. (author), TNO Technische Menskunde (author)
The purpose of the present study was to test the traditional assumption that sea sickness is uniquely provoked by heave motion characteristics, pitch and roll movements being ineffective. In an experi-ment with a ship motion simulator subjects were exposed to pitch, and roll motions in combination with rather weak heave motions that have no...
article 1998
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Veltman, J.A. (author), Gaillard, A.W.K. (author), TNO Technische Menskunde (author)
The sensitivity of physiological measures to mental workload has been investigated in a flight simulator. Twelve pilots had to fly through a tunnel with different levels of difficulty. Additionally, they had to perform a memory task with four levels of difficulty. The easiest memory task was combined with the easiest tunnel task and the most...
article 1998
Searched for: subject:"Perception"
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