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141.
Oliver Gruber Tobias Melcher Esther K. Diekhof Susanne Karch Peter Falkai Thomas Goschke 《Brain and cognition》2009,69(3):559-564
Background monitoring is a necessary prerequisite to detect unexpected changes in the environment, while being involved in a primary task. Here, we used fMRI to investigate the neural mechanisms that underlie adaptive goal-directed behavior in a cued task switching paradigm during real response conflict or, more generally, when expectations on the repetitive features of the environment were violated. Unexpected changes in sensory stimulus attributes in the currently unattended stimulus dimension thereby led to activations in a bilateral network comprising inferior lateral frontal, intraparietal, and posterior medial frontal brain regions, independent of whether these attributes elicited a factual response conflict or not. This fronto-parietal network may thus play an important role in adaptive responding to potentially significant events outside the current focus of attention. 相似文献
142.
Thomas Graczyk Tobias Wingen Sophia Wingen Simone Dohle 《European journal of social psychology》2024,54(3):629-642
Poverty remains a pressing problem, with social support playing a crucial role in its reduction. Drawing on previous research on health-related mindsets, we propose that a growth mindset of poverty – that is, believing poverty can be changed – can have both positive and negative effects on helping intentions through increased outcome expectancy and blame, respectively. In three experiments, we found that a growth mindset of poverty is associated with increased outcome expectancy and blame, which, in parallel, mediate the relationship between mindsets and helping intentions. However, these contrary indirect effects negate each other, yielding a total null effect. Further, manipulating the relationship between mindset and outcome expectancy (but not blame) alters the relationship between mindset and helping intentions (Studies 2 and 3). By shedding light on the circumstances under which mindsets of poverty can diminish or amplify helping intentions, our research offers valuable insights for practitioners and charities dedicated to combating poverty. 相似文献
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Oliver Sacks observed autistic twins who instantly guessed the exact number of matchsticks that had just fallen on the floor, saying in unison "111". To test the suggestion that normal individuals have the capacity for savant numerosity, we temporarily simulated the savant condition in normal people by inhibiting the left anterior temporal lobe of twelve participants with repetitive transcranial magnetic stimulation (rTMS). This site has been implicated in the savant condition. Ten participants improved their ability to accurately guess the number of discrete items immediately following rTMS and, of these, eight became worse at guessing as the effects of the pulses receded. The probability of as many as eight out of twelve people doing best just after rTMS and not after sham stimulation by chance alone is less than one in one thousand. 相似文献
148.
It has been argued that phylogenetic fear-relevant stimuli elicit preattentive capture of attention. To distinguish between fear relevance and time of appearance in evolutionary history, the authors compare phylogenetic and ontogenetic fear-relevant and fear-irrelevant stimuli in a visual search task. The authors found no evidence for a special role of phylogenetic fear-relevant stimuli; it seems that fear relevance in general is more important than is the evolutionary age. The pattern of results indicates that attention toward threatening stimuli is mainly affected by a late component that prolongs the disengagement of attention. 相似文献
149.
Claire R. Smid Wouter Kool Tobias U. Hauser Nikolaus Steinbeis 《Developmental science》2023,26(2):e13295
Human decision-making is underpinned by distinct systems that differ in flexibility and associated cognitive cost. A widely accepted dichotomy distinguishes between a cheap but rigid model-free system and a flexible but costly model-based system. Typically, humans use a hybrid of both types of decision-making depending on environmental demands. However, children's use of a model-based system during decision-making has not yet been shown. While prior developmental work has identified simple building blocks of model-based reasoning in young children (1–4 years old), there has been little evidence of this complex cognitive system influencing behavior before adolescence. Here, by using a modified task to make engagement in cognitively costly strategies more rewarding, we show that children aged 5–11-years (N = 85), including the youngest children, displayed multiple indicators of model-based decision making, and that the degree of its use increased throughout childhood. Unlike adults (N = 24), however, children did not display adaptive arbitration between model-free and model-based decision-making. Our results demonstrate that throughout childhood, children can engage in highly sophisticated and costly decision-making strategies. However, the flexible arbitration between decision-making strategies might be a critically late-developing component in human development. 相似文献
150.
In line with the common ingroup identity model, the present research investigated whether factors beyond contact conditions are associated with the emergence of a shared identity perception and outgroup attitudes. Concretely, we reasoned that higher consumption of global news would be positively related to a stronger global identity, which in turn would be negatively correlated with ethnocentrism. In contrast, consumption of local news should be associated with a local identity, which would then be positively related to ethnocentrism. To test these ideas, one cross-sectional (N = 576) and one longitudinal study (N = 410) were carried out at an Austrian university. As hypothesized, global news consumption was associated with a stronger global identity, which then accounted for reduced ethnocentrism. However, only in the cross-sectional study, we found empirical evidence that local news interest is positively correlated with ethnocentrism mediated by local identity. 相似文献