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ABSTRACTTheoretical models of the effect of aerobic activity on concurrent cognitive tasks predict both impairments and improvements depending on the specific characteristics of the cognitive task. It can be assumed that both aerobic and cognitive tasks share neural resources of limited capacity (such as self-control) or that they interact by confliction or facilitation of brain activation. Detrimental effects are thus expected for cognitive tasks requiring self-control or conflicting brain activation. Effects of cognitive tasks on simultaneous aerobic activity have rarely been investigated, but predictions can be made by adaptations of the same theoretical models. The predicted effects should be enhanced at higher intensities due to increasing drains of neural resources and stronger brain activations. The current study aimed to investigate the interaction of aerobic and cognitive tasks under increasing and maximum physical load. Fifty participants (31 men, 19 women, mean age 22.8 ± 2.6 years) performed two maximum performance cycling tests, one in combination with mental rotation tasks (dual-task condition) and one without a cognitive task (control condition). Cognitive (reaction time, accuracy) and physical (power, cadence) performance, as well as objective (heart rate) and subjective (cognitive and physical ratings of perceived exertion) effort, were measured during the respective tests. The results showed increased cognitive effort during increased physical load and a focus on speed rather than accuracy, which can be interpreted in support of the models. Physical performance, however, could be upheld without increased physiological effort. The physical results contradict the suspected impairment predicted by the adaptations of the theoretical models.

One aspect of sustainable consumption behavior is the shift to a vegetarian diet. This study investigates if individual factors, like character strengths, are related to attitudes toward vegetarian food. Additionally, the study examines potential variations in character strengths between vegetarians/vegans and omnivores, as well as whether there are differences in explicit and implicit affective attitudes towards vegetarian and meat-based diets. A total of 210 participants filled out a demographic questionnaire, a scale measuring character strength, an explicit rating task, and an affective priming task that involved images of both vegetarian and meat-based food. The results showed that there was no difference in the explicit and implicit rating of meat-based food compared to vegetarian food for omnivore people. Vegetarians/vegans rated vegetarian food explicitly and implicitly more positively than meat-based food. Only the four character strengths of prudence, appreciation of beauty and excellence, humor, and teamwork, besides the diet type (vegetarians/vegans vs. omnivores), predicted the explicit attitudes toward vegetarian food. Vegetarians/vegans and omnivores only differed in the character strengths of love of learning and forgiveness. This study provides evidence that the explicit and implicit attitudes towards vegetarian food are concordant for vegetarians and vegans with their diet choice. Furthermore, the relationship between character strengths and explicit attitudes toward vegetarian food is weak, which hints that those individual transformative qualities (Woiwode et al., 2021) toward sustainable attitude and behavior should be investigated carefully and in-depth.

The present study aims to investigate explicit and implicit affective attitudes toward sustainability, aspects of mindfulness, and their related factors. Therefore, different areas of sustainability (e.g., mobility, nutrition, packaging) were considered. We focused mainly on the indirect effects of mindfulness on attitudes through prosocialness and connectedness to nature. Furthermore, heartfulness, as the emotional quality of mindfulness, was considered. 458 subjects answered a series of questionnaires (mindfulness, connectedness to nature, prosocial behavior, gratitude, and self-compassion questionnaire) and completed an explicit affective evaluation task, as well as an affective priming task measuring implicit attitudes. The participants explicitly evaluated sustainable concepts more positively in comparison to non-sustainable ones. There was no significant correlation between implicit and explicit affective attitudes. Furthermore, the results of structural equation modeling revealed inner awareness and insight as predictors for prosocialness, and prosocialness in turn for the explicit affective attitudes toward sustainability. In addition, exploratory analyses showed a significant relationship between self-compassion and explicit attitudes toward sustainable concepts and a significant overall relation between gratitude, prosocialness, and explicit attitudes toward sustainable concepts. None of the relations to the implicit attitudes was significant. Our findings suggest prosocialness as a relevant mediating factor for the relation of explicit attitudes toward sustainability and mindfulness. However, this connection might be more complex, and the differentiation of mindfulness aspects inner and outer awareness seems insightful and should be considered even more in further research.

ABSTRACTThe effects of a brief mindfulness intervention and a stereotype threat activation on behavioural performance and cognitive load in a chronometric mental rotation test with cube figures were investigated. 107 participants (55 women and 52 men) were divided into four test groups (mindful or control intervention combined with or without stereotype threat activation). They completed two sets of 150 items each with cube figures of similar complexity and filled out a test of state mindfulness. Cognitive load was measured by changes in pupil dilation using eye tracking. Cognitive load, reaction time, and accuracy were analysed with linear mixed models with the factors time, stereotype threat, mindfulness, angular disparity, and sex. The analyses revealed no sex differences in either of the measurements. Neither stereotype threat nor mindfulness influenced task performance significantly. However, we found that high levels of state mindfulness inhibit stereotype threat to negatively influence task performance and cognitive load.