280 research outputs found
Contributions of expected sensory and affective action effects to action selection and performance: Evidence from forced- and free-choice tasks
Action Contro
Applications of the ER-2 meteorological measurement system
The NASA ER-2 aircraft is used as a platform for high altitude atmospheric missions. The Meteorological Measurement System (MMS) was developed specifically for atmospheric research to provide accurate high resolution measurements of pressure, temperature, and the 3-D wind vector with a sampling rate of 5/s. The MMS consist of three subsystems: (1) an air motion sensing system to measure the velocity of the air with respect to the aircraft; (2) a high resolution inertial navigation system (INS) to measure the velocity of the aircraft with respect to the earth; and (3) a data acquisition system to sample, process, and record the measurement quantities. MMS data have been used extensively by ER-2 investigators in elucidating the polar ozone chemistry. Herein, applications on atmospheric dynamics are emphasized. Large scale (polar vortex, potential vorticity, model atmosphere), mesoscale (gravity waves, mountain waves) and microscale (heat fluxes) atmospheric phenomena are investigated and discussed
How Not to Fall for the White Bear: Combined Frequency and Recency Manipulations Diminish Negation Effects on Overt Behavior
Processing negated mental representations comes with a price: Not only are negations harder to resolve than affirmative statements, but they may even invoke ironic effects, producing the exact opposite of the intended outcome. Negation effects also behave ironically when subjected to high-frequency training; when they are confronted often, the difficulty to process negations strangely increases. Here we show that negation effects can be mitigated under certain circumstances. Based on models of cognitive control and conflict adaptation, we hypothesized that negation effects diminish when two criteria are met: negations have to be resolved not only frequently, but also just recently. We confirmed this prediction in two experiments by using an innovative, two-dimensional finger tracking design, in which we measured the influence of the original semantic content during negation processing via temporal and spatial measures. Negation effects were present throughout the experiment, but were reduced after recent negations, particularly during or after a high-frequency negation context. The combined influence of frequency and recency thus seems to be the most successful and promising attempt to mitigate ironic negation effects on overt behavior
Omalizumab as alternative to chronic use of oral corticosteroids in severe asthma
Systemic/oral corticosteroids (OCS) have been used for decades in the management of acute asthma exacerbations and chronically in patients with uncontrolled severe asthma. However, while OCS are effective at treating acute exacerbations, there is only empirical evidence regarding the efficacy of OCS at reducing the rate of exacerbations. Evidence, although scarce, is suggestive of high exacerbation rates in severe asthma patients even when receiving maintenance treatment with OCS. In addition, use of OCS is associated with undesirable effects. Despite all this, physicians have continued to use OCS for managing severe asthma and acute exacerbation due to the lack of availability of effective alternatives. Fortunately, in the last decade several biologics have been proven safe and effective for patients with uncontrolled severe asthma. This has led to the Global Initiative for Asthma (GINA) recommending the use of biologics, instead of maintenance OCS, in patients with severe asthma (GINA Step 5). These include one biologic targeting immunoglobulin E (IgE) (omalizumab), and different biologics targeting interleukin-5 (IL-5), the IL-5 receptor (IL-5R) or IL-4 receptor alpha-unit (IL-4R alpha), including mepolizumab (subcutaneous), reslizumab (intravenous), benralizumab (subcutaneous) and dupilumab (subcutaneous).
Omalizumab for the treatment of severe allergic asthma reduces exacerbations, irrespective of blood eosinophil levels. Anti-IL-5/IL-5R biologics are indicated in patients with severe eosinophilic asthma and repetitive exacerbations, irrespective of the presence or absence of allergy. Recently, an anti-IL4R alpha biologic has been approved by the FDA for eosinophilic phenotype or oral corticosteroid-dependent asthma. Finally, physicians should consider using biologics as an alternative to chronic OCS therapy
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Multi-Scale Capture of Facial Geometry and Motion
We present a novel multi-scale representation and acquisition method for the animation of high-resolution facial geometry and wrinkles. We first acquire a static scan of the face including reflectance data at the highest possible quality. We then augment a traditional marker-based facial motion-capture system by two synchronized video cameras to track expression wrinkles. The resulting model consists of high-resolution geometry, motion-capture data, and expression wrinkles in 2D parametric form. This combination represents the facial shape and its salient features at multiple scales. During motion synthesis the motion-capture data deforms the high-resolution geometry using a linear shell-based mesh-deformation method. The wrinkle geometry is added to the facial base mesh using nonlinear energy optimization. We present the results of our approach for performance replay as well as for wrinkle editing.Engineering and Applied Science
Effective rotations: Action effects determine the interplay of mental and manual rotations.
Taking shortcuts: Cognitive conflict during motivated rule-breaking
Deliberate rule violations have typically been addressed from a motivational perspective that
asked whether or not agents decide to violate rules based on contextual factors and moral considerations.
Here we complement motivational approaches by providing a cognitive perspective
on the processes that operate during the act of committing an unsolicited rule violation.
Participants were tested in a task that allowed for violating traffic rules by exploiting forbidden
shortcuts in a virtual city maze. Results yielded evidence for sustained cognitive conflict that
affected performance from right before a violation throughout actually committing the violation.
These findings open up a new theoretical perspective on violation behavior that focuses on
processes occurring right at the moment a rule violation takes place
Taking shortcuts: Cognitive conflict during motivated rule-breaking
Deliberate rule violations have typically been addressed from a motivational perspective that
asked whether or not agents decide to violate rules based on contextual factors and moral considerations.
Here we complement motivational approaches by providing a cognitive perspective
on the processes that operate during the act of committing an unsolicited rule violation.
Participants were tested in a task that allowed for violating traffic rules by exploiting forbidden
shortcuts in a virtual city maze. Results yielded evidence for sustained cognitive conflict that
affected performance from right before a violation throughout actually committing the violation.
These findings open up a new theoretical perspective on violation behavior that focuses on
processes occurring right at the moment a rule violation takes place
No interrelation of motor planning and executive functions across young ages
The present study examined the developmental trajectories of motor planning and executive functioning in children. To this end, we tested 217 participants with three motor tasks, measuring anticipatory planning abilities (i.e., the bar-transport-task, the sword-rotation-task and the grasp-height-task), and three cognitive tasks, measuring executive functions (i.e., the Tower-of-Hanoi-task, the Mosaic-task, and the D2-attention-endurance-task). Children were aged between 3 and 10 years and were separated into age groups by 1-year bins, resulting in a total of eight groups of children and an additional group of adults. Results suggested (1) a positive developmental trajectory for each of the sub-tests, with better task performance as children get older; (2) that the performance in the separate tasks was not correlated across participants in the different age groups; and (3) that there was no relationship between performance in the motor tasks and in the cognitive tasks used in the present study when controlling for age. These results suggest that both, motor planning and executive functions are rather heterogeneous domains of cognitive functioning with fewer interdependencies than often suggested
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