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Hogervorst, M.A. (author), Brouwer, A.M. (author), van Erp, J.B.F. (author)While studies exist that compare different physiological variables with respect to their association with mental workload, it is still largely unclear which variables supply the best information about momentary workload of an individual and what is the benefit of combining them. We investigated workload using the n-back task, controlling for...article 2014
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de Oliveira, J.E. (author), van der Hoeven-Hangoor, E. (author), van de Linde, I.B. (author), Montijn, R.C. (author), van der Vossen, J.M.B.M. (author)The feasibility of establishing probiotic bacteria in the intestine of broiler chickens by in ovo inoculation was investigated, followed by verifying possible subsequent protection against Salmonella Enteriditis infection. In a first study, 7 commercially available probiotics were screened for compatibility with in ovo inoculation. Two of these...article 2014
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Mariman, R. (author), Kremer, S.H.A. (author), Koning, F. (author), Nagelkerken, L. (author)Probiotic bacteria express a wide range of molecular structures that bind to receptors on innate immune cells and mediate health-promoting effects in the host. We have recently demonstrated in a colitis model that favourable effects of the probiotic mixture VSL#3 may in part be due to the suppression of intestinal chemokine expression. To obtain...article 2014
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Scholtes-Timmerman, M.J. (author), Bijlsma, S. (author), Fokkert, M.J. (author), Slingerland, R. (author), van Veen, S.J.F. (author)Self-monitoring of glucose is important for managing diabetes. Noninvasive glucose monitors are not yet available, but patients would benefit highly from such a device. We present results that may lead to a novel, point-of-care noninvasive system to measure blood glucose based on Raman spectroscopy. A hospitalized cohort of 111 subjects was...article 2014
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van den Broek, E.L. (author), Spitters, M.M. (author)Throughout the last 40 years, the security breach caused by human error is often disregarded. To relief the latter problem, this article introduces a new class of biometrics that is founded on processing physiological personal features, as opposed to physical and behavioral features. After an introduction on authentication, physiological signals...conference paper 2013
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Teunissen, L.P.J. (author), de Haan, A. (author), de Koning, J.J. (author), Daanen, H.A.M. (author)Physiological and perceptual effects of wind cooling are often intertwined and have scarcely been studied in self-paced exercise. Therefore, we aimed to investigate (1) the independent perceptual effect of wind cooling and its impact on performance and (2) the responses to temporary wind cooling during self-paced exercise. Ten male subjects...article 2013
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Martens, M.H. (author), Brouwer, R.F.T. (author)In driver behaviour research there is considerable focus on distraction caused by specific external systems, such as navigation systems or mobile telephones. However, it is not clear whether self-paced actions such as daydreaming have the same negative effects on driving behaviour. In a driving simulator study, the effects of an internal...article 2013
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van Rooij, L. (author), Elrofai, H.B.H. (author), Philippens, M.M.G.M. (author), Daanen, H.A.M. (author)It is important to understand human kinematics and muscle activation patterns in emergency maneuvers for the design of safety systems and for the further development of human models. The objective of this study was to quantify kinematic behavior and muscle activation in simulated steering tests in several realistic conditions. In total 108 tests...article 2013
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- Daanen, H.A.M. (author), Cheung, S.S. (author) conference paper 2013
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Strikwold, M. (author), Spenkelink, B. (author), Woutersen, R.A. (author), Rietjens, I.M.C.M. (author), Punt, A. (author)In vitro assays are often used for the hazard characterisation of compounds, but their application for quantitative risk assessment purposes is limited. This is because in vitro assays cannot provide a complete in vivo dose-response curve from which a point of departure (PoD) for risk assessment can be derived, like the no observed adverse...article 2013
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Brouwer, A.M. (author), van Erp, J.B.F. (author), Heylen, D. (author), Jensen, O. (author), Poel, M. (author)While a BCI usually aims to provide an alternative communication channel for disabled users who have difficulties to move or to speak, we focused on BCIs as a way to retrieve and use information about an individual’s cognitive or affective state without requiring any effort or intention of the user to convey this information. Providing only an...conference paper 2013
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Hogervorst, M.A. (author), Brouwer, A.M. (author), Vos, W.K. (author)We examined to what extent we can distinguish between ‘real-life’ stressed and relaxed participants on the basis of heart rate (HR), heart rate variability (HRV) and skin conductance level (SCL) as measured during rest. Physiological and subjective measures were compared between individuals that were to undergo eye laser surgery and a control...conference paper 2013
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Botter, J. (author), Burford, E.M. (author), Commissaris, D. (author), Könemann, R. (author), Mastrigt, S.H.V. (author), Ellegast, R.P. (author)The aim of this research paper was to investigate the effect, both biomechanically and physiologically, of two dynamic workstations currently available on the commercial market. The dynamic workstations tested, namely the Treadmill Desk by LifeSpan and the LifeBalance Station by RightAngle, were compared to the more conventional seated and...conference paper 2013
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- Daanen, H.A.M. (author) conference paper 2013
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Brouwer, A.M. (author), van Schaik, M.G. (author), van Erp, J.B.F. (author), Korteling, J.E. (author)Low neuroticism and high extraversion seem to be predictors for people performing well during and after extremely stressful circumstances. Here we investigate whether these personality factors are linked to stress sensitivity. Stress was induced through negative feedback on gaming performance and stress sensitivity was determined as the...conference paper 2013
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- Daanen, H.A.M. (author), Havenith, G. (author), Buehler, M. (author), Wypkema, A.W. (author), Cheung, S.S. (author) conference paper 2013
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Janssen, J.H. (author), Tacken, P. (author), de Vries, J.J. (author), van den Broek, E.L. (author), Westerink, J.H.D.M. (author), Haselager, P. (author), IJsselsteijn, W.A. (author)Over the last decade, an increasing number of studies have focused on automated recognition of human emotions by machines. However, performances of machine emotion recognition studies are difficult to interpret because benchmarks have not been established. To provide such a benchmark, we compared machine with human emotion recognition. We...article 2013
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Levels, K. (author), de Koning, J.J. (author), Foster, C. (author), Daanen, H.A.M. (author)Skin temperature has been suggested as a relevant physiological signal for the anticipatory and feedback control of work rate during self-paced exercise [1, 2]. However, a sudden extreme skin temperature elevation did not affect pacing during a 7.5-km cycling time trial [3]. Possible explanations for the discrepancy in these results are the...conference paper 2013
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- Teunissen, L.P.J. (author), de Haan, A. (author), de Koning, J.J. (author), Daanen, H.A.M. (author) conference paper 2012
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van Erp, J.B.F. (author), Oving, A.B. (author)In this study, the determinants of head motions (rotations) when driving around bends were investigated when drivers viewed the scene through a head-mounted display. The scene camera was either fixed or coupled to head motions along 2 or 3 axes of rotation. Eight participants drove around a triangular circuit and the range and speed of head...article 2012