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Transformational leadership is supposed to enhance employees' creativity. However, results of meta-analytic research on the relationships between transformational leadership and creativity fell short of expectations. In addition, the coefficients showed a huge variability. In this study, it was argued that relevant task and employee characteristics have been neglected in previous research. The benefit of transformational leadership may be limited in a context with routine tasks. Therefore, the moderating effects of task novelty and personal initiative on the relationship between transformational and transactional leadership and creativity were examined. In an experimental setting, 241 undergraduate students were instructed to act like a trainee of a management consulting company and to generate ideas. The results largely supported the hypotheses. Transformational leadership led to higher creativity than transactional leadership, and high task novelty produced higher creativity than low task novelty. As predicted, the effect of transformational leadership on creativity was stronger when task novelty was high than when task novelty was low. Moreover, the effect of transformational leadership was higher when persons were high in personal initiative than when they were low in personal initiative, indicating that the influence of transformational leadership depends on task and follower characteristics. Implications for practice and future research are discussed. 相似文献
723.
Andreas Losch 《Theology & Science》2013,11(1):85-106
Critical realism has been used in connection with different epistemological positions. The article reviews its different uses in German, American, and British philosophy and examines its relation to Barbour's introduction of the term in the science and theology debate. The result is that there is a close connection to scientific realism, but not to philosophical critical realism in a narrower sense. Critical realism is a type of realism defining the term in Kant's sense as related to the question of the existence of the tempospatial world. It distinguishes itself as a middle way between naïve realism and other extremes. 相似文献
724.
Andreas Löw Margaret M. Bradley Peter J. Lang 《Cognitive, affective & behavioral neuroscience》2013,13(4):860-868
During rapid serial visual presentation (RSVP), the perceptual system is confronted with a rapidly changing array of sensory information demanding resolution. At rapid rates of presentation, previous studies have found an early (e.g., 150–280 ms) negativity over occipital sensors that is enhanced when emotional, as compared with neutral, pictures are viewed, suggesting facilitated perception. In the present study, we explored how picture composition and the presence of people in the image affect perceptual processing of pictures of natural scenes. Using RSVP, pictures that differed in perceptual composition (figure–ground or scenes), content (presence of people or not), and emotional content (emotionally arousing or neutral) were presented in a continuous stream for 330 ms each with no intertrial interval. In both subject and picture analyses, all three variables affected the amplitude of occipital negativity, with the greatest enhancement for figure–ground compositions (as compared with scenes), irrespective of content and emotional arousal, supporting an interpretation that ease of perceptual processing is associated with enhanced occipital negativity. Viewing emotional pictures prompted enhanced negativity only for pictures that depicted people, suggesting that specific features of emotionally arousing images are associated with facilitated perceptual processing, rather than all emotional content. 相似文献
725.
Stefan Kaiser Joe J. Simon Annemarie Kalis Sophie Schweizer Philippe N. Tobler Andreas Mojzisch 《Cognitive, affective & behavioral neuroscience》2013,13(4):814-829
Decision-making research has thoroughly investigated how people choose from a set of externally provided options. However, in ill-structured real-world environments, possible options for action are not defined by the situation but have to be generated by the agent. Here, we apply behavioral analysis (Study 1) and functional magnetic resonance imaging (Study 2) to investigate option generation and subsequent choice. For this purpose, we employ a new experimental task that requires participants to generate options for simple real-world scenarios and to subsequently decide among the generated options. Correlational analysis with a cognitive test battery suggests that retrieval of options from long-term memory is a relevant process during option generation. The results of the fMRI study demonstrate that option generation in simple real-world scenarios recruits the anterior prefrontal cortex. Furthermore, we show that choice behavior and its neural correlates differ between self-generated and externally provided options. Specifically, choice between self-generated options is associated with stronger recruitment of the dorsal anterior cingulate cortex. This impact of option generation on subsequent choice underlines the need for an expanded model of decision making to accommodate choice between self-generated options. 相似文献
726.
The number of items that can be individuated at a single glance is limited. Here, we investigate object individuation at a higher temporal resolution, in fractions of a single glance. In two experiments involving object individuation we manipulated the duration of visual persistence of the target items with a forward masking procedure. The number of items as well as their stimulus–onset asynchrony (SOA) to the mask was varied independently. The results showed main effects of numerosity and SOA, as well as an interaction. These effects were not caused by a generic reduction of item visibility by the mask. Instead, the SOA manipulation appeared to fractionate the time to access the sensory image. These findings suggest that the capacity limit of 3–4 items found in object individuation is, at least partially, the consequence of the temporal window of access to sensory information. 相似文献
727.
Daniel Spurk Andreas Hirschi 《European Journal of Work and Organizational Psychology》2013,22(6):736-751
ABSTRACTIntegrating an interactionist model of personality development, the cumulative continuity model of personality development, and selection–evocation–manipulation theory, the present study analysed reciprocal relations of the Dark Triad common core and its sub-traits of narcissism, psychopathy, and Machiavellianism with competitive psychological climate. Moreover, within a large (N = 1,185) and longitudinal sample of employees from Germany, latent cross-lagged panel analyses were applied to analyse the moderating roles of age and organization change (i.e., organizational turnover). Overall, results revealed positive reciprocal relations between the Dark Triad common core, its sub-traits, and competitive psychological climate. The Dark Triad common core and Machiavellianism were more stable within the older (50–59 years) compared to the younger (25–34 years) age group. However, we found no age differences for the relation between competitive psychological climate and change in the Dark Triad common core or its sub-traits. Among employees who changed organizations, the Dark Triad common core, narcissism, and psychopathy were more strongly positively related to the change in competitive psychological climate than in the non-change group. This suggests stronger selection compared to evocation–manipulation effects for individuals with high values in the Dark Triad common core, narcissism, and psychopathy, but not for Machiavellianism. 相似文献
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