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381.
Arne Vanderstukken Bert Schreurs Filip Germeys Anja Van den Broeck Karin Proost 《Journal of applied social psychology》2019,49(11):671-683
There is an ongoing debate about how supervisors should communicate desired end‐states to subordinates, that is, whether they should set concrete goals (according to goal setting theory) or communicate abstract visions (according to transformational leadership theory). In this paper, we draw on construal level theory (CLT) to reconcile both views and develop a model of when supervisors communicating concrete goals versus abstract visions are seen as more effective. According to CLT, being psychologically removed from (vs. near to) an event or object makes people construe the event or object in a more abstract (vs. concrete) way, which, in turn, leads people to process abstract (vs. concrete) information more fluently and thus evaluate the sender of this information more favorably. Accordingly, supervisor effectiveness may be higher in conditions where communication and psychological distance to the supervisor converge (vision/far and goals/close) rather than diverge (vision/close and goals/far). We tested this hypothesis in two experiments, using different operationalizations of psychological distance. In these studies, we found supervisor effectiveness to be higher when vision was communicated at a far versus near distance and goals were communicated at a near versus far distance. 相似文献
382.
We developed and validated two web-based tasks to induce and measure ego depletion in two online experiments (N?=?122 and N?=?788). Ego depletion describes the phenomenon that exerting self-control temporarily reduces people’s capacity to subsequently control themselves. To induce ego depletion, we adapted the e-crossing task, and to measure ego depletion, we adapted the color Stroop task. We successfully induced ego depletion. Participants’ implicit theories about willpower as well as their mood moderated ego depletion. We also discuss several methodological issues and compare different approaches of measuring ego depletion using aggregated reaction times. 相似文献
383.
Information redundancy affects the accuracy of inference strategies. A simulation study illustrates that under high-information redundancy simple heuristics that rely on only the most important information are as accurate as strategies that integrate all available information, whereas under low redundancy integrating information becomes advantageous. Assuming that people exercise adaptive strategy selection, it is predicted that their inferences will more often be captured by simple heuristics that focus on part of the available information insituations ofhigh-information redundancy, especially when information search is costly. This prediction is confirmed in two experiments. The participants' task was to repeatedly infer which of two alternatives, described by several cues, had a higher criterion value. In the first experiment, simple heuristics predicted the inference process better under high-information redundancy than under low-information redundancy. In the second experiment, this result could be generalized to an inference situation in which participants had no prior opportunity to learn about the strategies' accuracies through outcome feedback. The results demonstrate that people are able to respond adaptively to different decision environments under various learning opportunities. 相似文献
384.
Anja Wittkowski Helen L. Richards Jennifer Williams Donal G. Fortune Christopher E. M. Griffiths Chris J. Main 《Journal of clinical psychology in medical settings》2007,14(3):248-257
As the experience of stigma and its psychological dimensions require careful measurement, the purpose of this study was to
examine the psychometric properties and factor structure of the Feelings of Stigmatization Questionnaire (FSQ). A total of
170 participants with psoriasis and 124 with atopic dermatitis (AD) completed the FSQ. AD participants self-rated AD severity,
while psoriasis severity was determined by a clinician. Confirmatory (CFA) and exploratory factor analytic (EFA) techniques
were used to examine the factor structure of the FSQ. The FSQ total score was not related to age, age at onset, illness duration
or psoriasis severity but it was negatively associated with AD severity (r = −.25, p < .01). The original six-factor structure of the FSQ was not replicated in our sample. Using EFA, a fixed three-factor solution
proved the most stable, with the dimensions of feeling flawed, anticipation of rejection and secrecy, and positive attitudes
towards skin disease being identified. 相似文献
385.
High impact running improves learning 总被引:1,自引:0,他引:1
Winter B Breitenstein C Mooren FC Voelker K Fobker M Lechtermann A Krueger K Fromme A Korsukewitz C Floel A Knecht S 《Neurobiology of learning and memory》2007,87(4):597-609
Regular physical exercise improves cognitive functions and lowers the risk for age-related cognitive decline. Since little is known about the nature and the timing of the underlying mechanisms, we probed whether exercise also has immediate beneficial effects on cognition. Learning performance was assessed directly after high impact anaerobic sprints, low impact aerobic running, or a period of rest in 27 healthy subjects in a randomized cross-over design. Dependent variables comprised learning speed as well as immediate (1 week) and long-term (>8 months) overall success in acquiring a novel vocabulary. Peripheral levels of brain-derived neurotrophic factor (BDNF) and catecholamines (dopamine, epinephrine, norepinephrine) were assessed prior to and after the interventions as well as after learning. We found that vocabulary learning was 20 percent faster after intense physical exercise as compared to the other two conditions. This condition also elicited the strongest increases in BDNF and catecholamine levels. More sustained BDNF levels during learning after intense exercise were related to better short-term learning success, whereas absolute dopamine and epinephrine levels were related to better intermediate (dopamine) and long-term (epinephrine) retentions of the novel vocabulary. Thus, BDNF and two of the catecholamines seem to be mediators by which physical exercise improves learning. 相似文献
386.
Hofer A Siedentopf CM Ischebeck A Rettenbacher MA Widschwendter CG Verius M Golaszewski SM Koppelstaetter F Felber S Wolfgang Fleischhacker W 《Brain and cognition》2007,63(2):159-166
In this functional MRI experiment, encoding of objects was associated with activation in left ventrolateral prefrontal/insular and right dorsolateral prefrontal and fusiform regions as well as in the left putamen. By contrast, correct recognition of previously learned objects (R judgments) produced activation in left superior frontal, bilateral inferior frontal, and right cerebellar regions, whereas correct rejection of distractor objects (N judgments) was associated with activation in bilateral prefrontal and anterior cingulate cortices, in right parietal and cerebellar regions, in the left putamen, and in the right caudate nucleus. The R minus N comparison showed activation in the left lateral prefrontal cortex and in bilateral cingulate cortices and precunei, while the N minus R comparison did not reveal any positive signal change. These results support the view that similar regions of the frontal lobe are involved in episodic encoding and retrieval processes, and that the successful episodic retrieval of newly learned objects is mainly based on a frontoparietal network. 相似文献
387.
结构限制和信息干扰对双重作业绩效的影响 总被引:1,自引:1,他引:1
研究通过改变双重任务呈现的间隔时间来探讨结构限制与信息干扰对双重任务操作绩效的影响。实验结果表明:(1)两种作业呈现的间隔时间对双重任务操作绩效有明显的影响。间隔时间越大,双重任务的作业绩效越高。(2)信息干扰对双重任务的操作有明显的影响。信息干扰越大,双重任务的操作绩效越差。(3)两个作业呈现的间隔时间不同并不影响信息干扰对双重任务操作绩效的作用。根据实验结果,该研究提出了三因素假设:结构限制、信息干扰和资源竞争是影响双重任务操作绩效的三个主要因素。 相似文献
388.
One of the core issues in psycholinguistic research concerns the relationship between word category information and verb-argument structure (e.g. transitivity) information of verbs in the process of sentence parsing. In two experiments (visual versus auditory presentation) using event-related brain potentials (ERPs), we addressed this question by presenting sentences in which the critical word simultaneously realized both a word category and a transitivity violation. ERPs for sentences with both types of violation clustered with the patterns for sentences with a word category violation only, but were different from the patterns elicited by argument structure violations in isolation, since only the latter elicited an N400 ERP component. The finding that an argument structure violation evoked an N400 only if the phrase structure of the respective sentence was correct suggests that a successful integration of the word category information of a verb functionally precedes the application of its argument structure information. 相似文献
389.
We examined the accuracy of a highly-familiar-face representation in memory. In experiment 1, a famous portrait of Chairman Mao was digitally altered in terms of the distance between his two eyes, two pixels at a time. Mainland Chinese adults were shown the original or altered photos, one at a time, and asked to determine whether each was that of Chairman Mao or altered. Eastern Asian and Caucasian participants, who were unfamiliar with Mao's photo, were shown simultaneously the original face paired with the altered ones and asked to determine whether the photos were identical. The Mainland Chinese participants' memory threshold approximated the perceptual discrimination threshold of the Eastern Asian and Caucasian participants. Experiments 2 and 3 ruled out that the result of experiment I was due to artifacts of photographic alteration. The findings of the present study suggest that our memory of a very familiar face is highly accurate, at least in terms of the interocular configuration. The accuracy is perhaps only limited by the perceptual resolution capacity of our visual system. 相似文献
390.
Lotz A Kinder A 《Journal of experimental psychology. Learning, memory, and cognition》2006,32(4):707-715
In this article, the authors report 2 experiments that investigated the sources of information used in transfer and nontransfer tasks in artificial grammar learning. Multiple regression analyses indicated that 2 types of information about repeating elements were crucial for performance in both tasks: information about the repetition of adjacent elements and information about repetition of elements in the whole item. Similarity of test items to specific training items and chunk information influenced participants' judgments only in nontransfer tasks. 相似文献