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Hosa, N. (author), van Bommel, J.P. (author), Hurst, W. (author), Nijboer, T. (author), Veltkamp, R.C. (author), Werkhoven, P.J. (author)
Presence and the sense of embodiment are essential concepts for the experience of our self and virtual bodies, but there is little quantitative evidence for a relation between these, and this relation becomes more complicated when there are real and virtual bodies in augmented reality (AR). We investigate the experience of body ownership, agency...
conference paper 2019
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de Winkel, K.N. (author), Soyka, F. (author), Barnett-Cowan, M. (author), Bülthoff, H.H. (author), Groen, E.L. (author), Werkhoven, P.J. (author)
The brain is able to determine angular self-motion from visual, vestibular, and kinesthetic information. There is compelling evidence that both humans and non-human primates integrate visual and inertial (i.e., vestibular and kinesthetic) information in a statistically optimal fashion when discriminating heading direction. In the present study,...
article 2013
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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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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), 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
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de Winkel, K.N. (author), Clément, G. (author), Groen, E.L. (author), Werkhoven, P.J. (author)
Although the mechanisms of neural adaptation to weightlessness and re-adaptation to Earth-gravity have received a lot of attention since the first human space flight, there is as yet little knowledge about how spatial orientation is affected by partial gravity, such as lunar gravity of 0.16. g or Martian gravity of 0.38. g. Up to now twelve...
article 2012
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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), 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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Jansen, S.E.M. (author), Toet, A. (author), Werkhoven, P.J. (author)
In this study, the authors investigated how restriction of the vertical viewing angle influences obstacle-crossing behavior. Twelve participants stepped over obstacles of different dimensions while wearing visual-field-restricting goggles. Using full-body motion capture, several kinematic measures were extracted and analyzed. Results indicate...
article 2011
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Jansen, S.E.M. (author), Toet, A. (author), Werkhoven, P.J. (author)
conference paper 2011
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Jansen, S.E.M. (author), Toet, A. (author), Werkhoven, P.J. (author)
This study investigated how human locomotion through an obstacle environment is influenced by visual field limitation. Participants were asked to walk at a comfortable pace to a target location while avoiding multiple vertical objects. During this task, they wore goggles restricting their visual field to small (S: 40° × 25°), medium (M: 80° × 60...
article 2011
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