Previous research has yielded inconclusive results on the relationship between self-reported sleep quality and cognitive performance in healthy old age. Discrepant findings have been reported regarding processing speed attention, executive functions, episodic memory. However, also found to be related patients with depression. Our aim was clarify older adults, evaluate moderating role of subclinical depression this relationship.The Pittsburgh Sleep Quality Index used assess subjective 107...

We present BendDesk, a hybrid interactive desk system that combines horizontal and vertical surface via curve. The provides seamless touch input across its entire area. explain scalable algorithms provide graphical output multi-touch on curved surface. In three tasks we investigate the performance of dragging gestures curve, as well virtual aiming at targets. Our main findings are: 1) Dragging curve is significantly slower than flat surfaces. 2) smaller entrance angle when longer average...

Sometimes, policing requires a quick and correct assessment of potentially hazardous situations. The training tactical gaze control visual attention, its positive impact on efficient shoot/don't shoot decisions in police cadets' use firearms has recently been demonstrated. On this basis, we designed an individual videobased that was grounded the Four-Component Instructional Design Model (4C/ID). We shifted toward blended learning approach where applied intervention focused situational...

When predicting the traffic of future and acceptance automated vehicles, we often like to assume that one major challenges will be foster overall trust in vehicles for effective safe mixed-traffic operations. In this paper, propose a more faceted viewpoint argue benefits -- provide an initial framework --calibrated by fostering distrust vehicles. If drivers know exactly what their vehicle is not capable of, then they are likely react properly prepared when handover requests or other...

In two experiments, the usability of input devices integrated into computer notebooks was under study. The most common devices, touchpad (experiment 1) and trackpoint 2) were examined. So far, evaluation mobile has been restricted to younger users. However, due ongoing demographic change, main target group will be older Therefore, present study focused on ageing effects. A total 14 middle-aged (40-65 years) 20 (20-32 users compared regarding speed accuracy cursor control in a point-click...

Police officers often encounter potentially dangerous situations in which they strongly rely on their ability to identify threats quickly and react accordingly. Previous studies have shown that practical experience targeted training significantly improve threat detection time decision-making performance law enforcement situations. We applied 90-min traditional firearms as a control condition (35 participants) specifically developed intervention (25 police cadets. The contained theoretical...

When using a tool, proximal action effects (e.g., the hand movement on digitizer tablet) and distal cursor display) often do not correspond to or are even in conflict with each other. In experiments reported here, we examined role of closed loop task sensorimotor control. Different gain factors perturbed relation between movements tablet display. experiments, covert was held constant, while amplitude display shorter, equal, longer, vice versa other condition. participants were asked...

This study examines the effectiveness of expressive writing in reducing work stress. Expressive involves structured written exercises self-disclosure for cognitive and affective processing stressful experiences over several sessions. Using a 3x3 mixed design, we examined effects intervention on stress as well work-related motivation attitudes 62 German participants. We found sex-specific effect significant reduction exhaustion men experimental group. In contrast, women control group showed...

The impact of sensorimotor transformations with graphical input devices is surveyed regard to action control. Recent evidence lets us assume that the distal effect (the moving cursor) rather than proximal hand) determines efficiency tool use. In Experiment 1, different gains were explored a touchpad and mini-joystick. correspondence our assumptions results revealed Fitts' law holds for action–effect movements, but less movements. Most importantly, this was not only true also We further found...

In the present study, usability of two laptop input devices, touchpad and trackpoint, is evaluated. The focus set on impact sensumotor transformation devices practice task difficulty. Thirty novices 14 experts operated either or trackpoint over a period 1600 trials point-click task. As hypothesized, by 15% faster compared to trackpoint. For novices, performance rose distinctly levelled off after 960 trials. This consolidation occurred earlier than reported in literature (1400-1600 trials)...

Previous studies have demonstrated a great uncertainty in evaluating one's own voluntary actions when visual feedback is suspended. We now compare these limitations younger and older adults during active or passive limb movements. Participants put their dominant hand on robot arm performed movements actively the relaxed was moved passively. Either distorted no at all provided movement. Perception of attenuated through feedback. This effect more pronounced adults. However, difference between...

It is examined whether and how the perspective of seeing one's own movements exerted an influence on action control. Such change in challenges information processor, as she or he has to handle successfully discrepancies between tactile/proprioceptive feedback visual a projection screen. In experiments participants responded stimuli, but saw their responses either from top with x-axis reflection, y-axis reflection about both axes. The results showed that did not impair performance long...

On the basis of Fitts' law present study examined psychomotor efficiency for 20 experienced users force- (trackpoint) and motion-input (touchpad) devices in clicking dragging tasks. Beyond task difficulty impact input modality, practice, type was investigated. one hand, results support since performance data both fitted satisfyingly with predictions. Motion-input found to be very robust towards difficulty, especially other were incompatible assumptions as target size distance did not equally...

In the present study usability of two different types notebook input devices was examined. The independent variables were device (touchpad vs. minijoystick) and user expertise (expert novice state). There 30 participants, whom 15 touchpad experts other mini-joystick experts. experimental tasks a point-click task (Experiment 1) point-drag-drop 2). Dependent time accuracy cursor control. To assess carryover effects, we had participants complete both experiments, using not only for which they...