Open Access

Highly arousing, affective stimuli have adverse effects on cognition and performance. Perception of affective stimuli is, however, highly subjective and may impact on the interaction of emotion and cognition. Here, we tested the impact of high- versus low-threatening stimuli on response inhibition as a function of perceived threat intensity. Response inhibition was probed using a stop-signal paradigm in 62 healthy adults. We used stop-signals that had previously been paired with an unpleasant electrodermal stimulation (i.e., high-threat stimuli) or that had never been paired with electrodermal stimulation (i.e., low-threat stimuli). High-threat stimuli did not affect stopping performance in general. Only participants who perceived the high-threat stimuli as highly painful showed impaired response inhibition on high-threat trials relative to low-threat trials. Participants who perceived the high-threat as mildly painful, however, showed improved response inhibition on high-threat trials. This effect was not moderated by the current anxious state. This suggests that the impact of negative affective stimuli on cognition critically depends on subjective threat perception. Ratings of affective stimuli should be included in studies probing the emotion–cognition interaction because subjective perception might strongly impact on that interaction.

Our current mobility paradigm increasingly faces economic, ecological, and social limits in urban areas. The aim of this paper is to analyse if a fleet of shared autonomous electric vehicles (AEVs) can meet these challenges while satisfying the current requirements of privately-owned internal combustion engine vehicles (ICEVs). Therefore, analytical models have been developed to simulate and investigate the impacts of mobility behaviour in Berlin and Stuttgart (Germany). The collected data were used to calculate the fleet size, the energy consumption, the emission of particulate matter, nitrogen oxides, and the carbon footprint of different shared AEVs in comparison with privately owned ICEVs. The approach shows that the system of a shared AEV fleet could lower externalities (accident avoidance, traffic jams, free spaces, parking costs and lifetime losses) in cities and generate cost benefits for customers.

Purpose: Hazardous alcohol consumption among university students represents a prime health risk for this population. Due to a lack of appropriate German-language (online) prevention programs, an existing U.S.-American program was transferred to the German higher education area and then evaluated. Method: For this purpose, both qualitative focus groups and a quantitative evaluation were undertaken. The guided focus groups allowed a further adaptation of the prevention program: An improved frequency–quantity questionnaire for the drinking behavior of German-speaking students was developed, and thresholds for hazardous consumption were included. Results: The additional quantitative verification of the adaptation found that 65.9% of the surveyed students found the adapted program suitable for the higher education context and 62.6% stated that every university should provide such a program. Discussion: The adaptation process described here made it possible to develop an online prevention program tailored to the lifeworld of students in the German-speaking region.