Task goals shape the relationship between decision and movement speed.

The speed at which we move is linked to the speed at which we decide to make these movements. Yet the principles guiding such relationship remain unclear: whereas some studies point toward a shared invigoration process boosting decision and movement speed jointly, others rather indicate a trade-off between both levels of control, with slower movements accompanying faster decisions. Here, we aimed ) at further investigating the existence of a shared invigoration process linking decision and movement and ) at testing the hypothesis that such a link is masked when detrimental to the reward rate.

Movement characteristics impact decision-making and vice versa.

Previous studies suggest that humans are capable of coregulating the speed of decisions and movements if promoted by task incentives. It is unclear however whether such behavior is inherent to the process of translating decisional information into movements, beyond posing a valid strategy in some task contexts. Therefore, in a behavioral online study we imposed time constraints to either decision- or movement phases of a sensorimotor task, ensuring that coregulating decisions and movements was not promoted by task incentives.

Comparing the motivational value of rewards and losses in an EEG-pupillometry study.

We found earlier that performance-contingent rewards lead to faster performance than equivalent losses [Carsten, Hoofs, Boehler, & Krebs, 2019. Motivation Science, 5(3). http://dx.

Pupillary contagion is independent of the emotional expression of the face.

The concept of pupillary contagion refers to the automatic imitation of observed pupil size and reflects shared autonomic arousal. Previous studies have linked the experience of sadness to changes in pupil size. Accordingly, in a 2006 article, Harrison, Singer, Rotshtein, Dolan, and Critchley found evidence for pupillary contagion when the observed face expressed sadness but not when it showed a neutral, happy, or angry expression.

Differential effects of sustained and transient effort triggered by reward - A combined EEG and pupillometry study.

In instrumental task contexts, incentive manipulations such as posting reward on successful performance usually trigger increased effort, which is signified by effort markers like increased pupil size. Yet, it is not fully clear under which circumstances incentives really promote performance, and which role effort plays therein. In the present study, we compared two schemes of associating reward with a Flanker task, while simultaneously acquiring electroencephalography (EEG) and pupillometry data in order to explore the contribution of effort-related processes.

Interactions between incentive valence and action information in a cued approach-avoidance task.

Environmental stimuli can provoke specific response tendencies depending on their incentive valence. While some studies report positive-approach and negative-avoidance biases, others find no such mappings. To further illuminate the relationship between incentive valence and action requirement, we combined a cued monetary incentive paradigm with an approach/avoidance joystick task.

Optical data acquisition for computer-assisted design of facial prostheses.

Purpose: The conventional impression technique for manufacturing facial prostheses has the disadvantage of deforming the soft tissues because of the tension caused by the impression material, as well as causing discomfort to the patient. The purpose of this study was to establish a system that allows contact-free reproduction of the facial surface combined with computer-assisted design and fabrication of facial prostheses.

Materials And Methods: Three-dimensional data of the facial surface were obtained using an optical acquisition system based on the method of phase-measuring profilometry.