(1 - 20 of 20)
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Thurlings, M.E. (author), van Erp, J.B.F. (author), Brouwer, A.-M. (author), Blankertz, B. (author), Werkhoven, P.J. (author)
Event-related potential (ERP) based brain-computer interfaces (BCIs) employ differences in brain responses to attended and ignored stimuli. When using a tactile ERP-BCI for navigation, mapping is required between navigation directions on a visual display and unambiguously corresponding tactile stimuli (tactors) from a tactile control device:...
article 2012
document
Philippi, T. (author), van Erp, J.B.F. (author), Werkhoven, P.J. (author), TNO Defensie en Veiligheid (author)
In temporal numerosity judgment, observers systematically underestimate the number of pulses. The strongest underestimations occur when stimuli are presented with a short interstimulus interval (ISI) and are stronger for vision than for audition and touch. We investigated if multisensory presentation leads to a reduction of underestimation....
article 2008
document
Werkhoven, P.J. (author), van Erp, J.B.F. (author), Philippi, T. (author), TNO Defensie en Veiligheid (author)
Irrelevant events in one sensory modality can influence the number of events that are perceived in another modality. Previously, the underlying process of sensory integration was studied in conditions in which participants knew a priori which sensory modality was relevant and which was not. Consequently, (bottom-up) sensory interference and (top...
article 2009
document
Thurlings, M.E. (author), van Erp, J.B.F. (author), Brouwer, A.M. (author), Werkhoven, P.J. (author)
When using brain–computer interfaces (BCIs) to control a game, the BCI may have to compete with gaming tasks for the same perceptual and cognitive resources.We investigated: 1) if and to what extent event-related potentials (ERPs) and ERP–BCI performance are affected in a dual-task situation; and 2) if these effects are an area function of the...
article 2013
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Thurlings, M.E. (author), Brouwer, A.M. (author), van Erp, J.B.F. (author), Werkhoven, P.J. (author)
Gaze-independent event-related potential (ERP) based brain-computer interfaces (BCIs) yield relatively low BCI performance and traditionally employ unimodal stimuli. Bimodal ERP-BCIs may increase BCI performance due to multisensory integration or summation in the brain. An additional advantage of bimodal BCIs may be that the user can choose...
article 2014
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van Erp, J.B.F. (author), Philippi, T.G. (author), Werkhoven, P. (author)
In the illusory flash paradigm, a single flash may be experienced as two flashes when accompanied by two beeps or taps, and two flashes may be experienced as a single flash when accompanied by one beep or tap. The classic paradigm restricts responses to '1' and '2' (2-AFC), ignoring possible qualitative differences between real and illusory...
article 2013
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Thurlings, M.E. (author), Brouwer, A.M. (author), van Erp, J.B.F. (author), Blankertz, B. (author), Werkhoven, P.J. (author)
Event-related potential (ERP)-based brain–computer interfaces (BCIs) employ differences in brain responses to attended and ignored stimuli. Typically, visual stimuli are used. Tactile stimuli have recently been suggested as a gaze-independent alternative. Bimodal stimuli could evoke additional brain activity due to multisensory integration which...
article 2012
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van Erp, J.B.F. (author), Philippi, T.G. (author), de Winkel, K.N. (author), Werkhoven, P. (author)
Pairing two brief auditory beeps with a single flash can evoke the percept of a second, illusory, flash. Investigations of the underlying neural mechanisms are limited to post-stimulus effects of this sound-induced illusory flash. We investigated whether touch modulates the visual evoked potential in a similar vein, and also looked at pre...
article 2014
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TNO Technische Menskunde (author), van Erp, J.B.F. (author), Werkhoven, P.J. (author)
article 2004
document
Werkhoven, P. (author), van Erp, J.B.F. (author), Philippi, T.G. (author)
It has been shown that multisensory presentation can improve perception, attention, and object memory compared with unisensory presentation. Consequently, we expect that multisensory presentation of landmarks can improve spatial memory and navigation. In this study we tested the effect of visual, auditory and combined landmark presentations in...
article 2014
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Thurlings, M.E. (author), van Erp, J.B.F. (author), Brouwer, A.-M.M. (author), Werkhoven, P.J. (author), TNO Defensie en Veiligheid (author)
Abstract In this chapter we discuss Brain-Computer Interfaces (BCIs) as navigation devices from a Human Factors point of view. We argue that navigation is more than only steering a car or a wheelchair. It involves three levels: planning, steering and control, linked to cognition, perception and sensation, respectively. We structure the existing...
bookPart 2010
document
Werkhoven, P.J. (author), van Erp, J.B.F. (author)
This chapter discusses mechanisms of multimodal perception in the context of multimodal simulators and virtual worlds. We review some notable findings from psychophysical experiments with a focus on what we call touch-inclusive multimodal perception—that is, the sensory integration of the tactile system with other sensory systems such as vision...
bookPart 2013
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van Erp, J.B.F. (author), Duistermaat, M. (author), Philippens, I.H.C.H.M. (author), van Veen, H.A.H.C. (author), Werkhoven, P.J. (author), TNO Defensie en Veiligheid (author)
Brain Machine Interfaces (BMIs) enable direct communication between the brain or nervous system and a machine without involving the sensory-motor system. BMIs are an embryonic technology and remarkable accomplishments have recently been reported. BMIs have a high potential and possibly an enormous impact on society, and may evoke a revolution in...
conference paper 2006
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van Erp, J.B.F. (author), Thurlings, M.E. (author), Brouwer, A.M. (author), Werkhoven, P.J. (author)
The development of Brain Computer Interfaces (BCIs) enters a phase in which these devices are no longer restricted to applications in controlled, single-task environments. For instance, BCIs for gaming or high-end operator stations will function as part of a multimodal user interface in a multitask environment. This phase introduces new issues...
conference paper 2011
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Thurlings, M.E. (author), Brouwer, A.M. (author), van Erp, J.B.F. (author), Werkhoven, P. (author)
conference paper 2009
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van Erp, J.B.F. (author), Philippi, T.G. (author), Werkhoven, P.J. (author)
Researchers have reported that audiovisual object presentation improves memory encoding of object identity in comparison to either auditory or visual object presentation. However, multisensory memory effects on retrieval, on object location, and of other multisensory combinations are yet unknown. We investigated the effects of visuotactile...
conference paper 2014
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van Erp, J.B.F. (author), Werkhoven, P.J. (author), TNO Defensie en Veiligheid (author)
Serious games are intended to provide an engaging, self reinforcing context to motivate and educate the players. One of the challenges in serious gaming is to provide intuitive interaction techniques. Serious games are meant to facilitate creative and educational processes and so they should optimally exploit the cognitive resources of the...
conference paper 2007
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Philippi, T.G. (author), van Erp, J.B.F. (author), Werkhoven, P. (author), TNO Defensie en Veiligheid (author)
When the presentation of a single flash is paired with that of 2 taps, a second, illusory, flash is sometimes perceived. We presented participants with 1 or 2 flashes paired with 1 or 2 taps and asked them to report the number of flashes. In experiment 1, we used the response categories 1, 2, 3 and analyzed the responses to 2 consecutive...
conference paper 2010
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van Erp, J.B.F. (author), Werkhoven, P.J. (author), TNO Defensie en Veiligheid (author)
Access to navigation information rapidly becomes standard in many situations, for example through GPS receivers and collision avoidance systems in cars. However, perceiving and processing the information may result in overloading the userÆs visual sense and cognitive resources. Intuitive navigation information presentation concepts using the...
conference paper 2006
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TNO Defensie en Veiligheid (author), van Erp, J.B.F. (author), Werkhoven, P.J. (author), Thurlings, M.E. (author), Brouwer, A.M. (author)
In this paper, we describe a Brain Computer Interface (BCI) for navigation. The system is based on detecting brain signals that are elicited by tactile stimulation on the torso indicating the desired direction.
conference paper 2009
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