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581.
情绪面孔搜索不对称性是指当负性情绪面孔作为目标, 正性情绪面孔作为分心物时, 其搜索速度比正性情绪面孔作为目标时(负性情绪面孔作为分心物)更快。对于这一现象的解释存在争议, 研究者主要从不同情绪面孔在情绪因素和知觉因素两个方面的差异进行解释。来自行为研究和认知神经科学的证据对情绪面孔搜索不对称性效应的解释主要有威胁性刺激捕获假设和情绪摆脱假设的情绪观, 以及嘴部差异说、闭合结构说、知觉组群说以及其他面部特征假设的知觉观。经过对比评价两类观点的理论异同和实验证据认为未来的研究可以整合情绪因素和知觉因素来解释该效应。 相似文献
582.
采用视空工作记忆任务和真实场景搜索任务相结合的双任务范式, 结合眼动技术将搜索过程划分为起始阶段、扫描阶段和确认阶段, 探究视空工作记忆负载对真实场景搜索绩效的影响机制, 同时考查试次间搜索目标是否变化、目标模板的具体化程度以及搜索场景画面的视觉混乱度所起的调节作用。结果表明, 视空工作记忆负载会降低真实场景搜索的成绩, 在搜索过程中表现为视空负载条件下扫描阶段持续时间的延长、注视点数目的增加和空间负载条件下确认阶段持续时间的延长, 视空负载对搜索过程的影响与目标模板的具体化程度有关; 空间负载会降低真实场景搜索的效率, 且与搜索画面的视觉混乱度有关, 而客体负载则不会。由此可见, 视空工作记忆负载对真实场景搜索绩效的影响不同, 空间负载对搜索过程的影响比客体负载更长久, 二者均受到目标模板具体化程度的调节; 仅空间负载会降低真实场景的搜索效率, 且受到搜索场景画面视觉混乱度的调节。 相似文献
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585.
Edwin A.J. van Hooft Marise Ph. Born Henk van der Flier 《Journal of Vocational Behavior》2005,66(2):238-256
In the context of Ajzen’s (1991) theory of planned behavior, the antecedents of intentions are better understood than the antecedents of behavior. The current study aimed to improve the understanding of the transition from intentions to behavior. Based on the work of Gollwitzer (1993), Kuhl and Beckmann (1994), and Lay (1986) we proposed a model of mediators (i.e., implementation intentions) and moderators (i.e., action-state orientation and trait procrastination) in the intention-behavior relation. The model was applied to job seeking, and tested using longitudinal survey data of a sample of unemployed individuals in The Netherlands (N = 175). Support was found for the proposed mediating role of implementation intentions in the relation between job search intention and job search behavior. The proposed moderating roles of action-state orientation and trait procrastination were not supported. 相似文献
586.
Cognitive Control of Attentional Guidance by Visual and Verbal Working Memory Representations
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Eriko Matsumoto 《The Japanese psychological research》2017,59(1):49-57
Both visual and verbal information in working memory guide visual attention toward a memory‐matching object. We tested whether: (a) visual and verbal representations have different effects on the deployment of attention; and (b) both types of representations can be used equally in a top‐down manner. We asked participants to maintain a visual cue or a verbal cue at the beginning of each trial, and ended with a memory task to ensure that each cue was represented actively in working memory. Before the memory task, a visual search task appeared where validity was manipulated as valid, neutral, or invalid. We also manipulated the probability of valid trials (20%, 50%, and 80%), which had been told to the participants prior to the task. Consistent with earlier findings, attentional guidance by visual representations was modulated by the probability. We also found that this was true for verbal representations, and that these effects did not differ between representation types. These results suggest that both visual and verbal representations in working memory can be used strategically to control attentional guidance. 相似文献
587.
Tamba Nlandu 《Sport, Ethics and Philosophy》2017,11(2):192-206
For decades, African senior club and national soccer teams, involved in world competitions (FIFA World Cup and FIFA Club World Cup), have failed to perform beyond mere honorable appearances. In this paper, we explore two of the fundamental causes underlying these disappointing performances. First, we examine the dilemma which forces almost all the African federations to overlook the Africa-based players in favor of those based outside the continent. Second, we show that the roots of the poor performances of the African teams go far beyond this crippling dilemma. Indeed, we argue, the persistent underperformances of African teams appear to be rather consistent with the fate of postcolonial Africa itself, a continent marred in an acute identity crisis. In fact, this crisis essentially stems from the relentless brain drain inflicted on the African soccer world which has so far dispersed its best talents all across Europe and beyond through the naturalization of its soccer diaspora. In addition, Africa has shown no ability to offer any type of attractive alternatives to the talented sons and daughters of its diaspora as well as to any other world class players. This ineptitude, coupled with Africa’s inability to leave behind its nostalgic Senghorian soccer essentialism, condemns the continent to perpetual poor performances. Therefore, we suggest that the African national federations and their respective governments move away from their deeply held soccer essentialism in order to begin to move toward some kind of soccer existentialism alongside such European countries as France, Germany, Switzerland, and The Netherlands which appear to acknowledge, perhaps reluctantly, the invaluable contributions made by the African (and other world) diaspora to the success of not only their local and national leagues but also their national teams. 相似文献
588.
Modeling Lag‐2 Revisits to Understand Trade‐Offs in Mixed Control of Fixation Termination During Visual Search
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An important question about eye‐movement behavior is when the decision is made to terminate a fixation and program the following saccade. Different approaches have found converging evidence in favor of a mixed‐control account, in which there is some overlap between processing information at fixation and planning the following saccade. We examined one interesting instance of mixed control in visual search: lag‐2 revisits, during which observers fixate a stimulus, move to a different stimulus, and then revisit the first stimulus on the next fixation. Results show that the probability of lag‐2 revisits occurring increased with the number of target‐similar stimuli, and revisits were preceded by a brief fixation on the intervening distractor stimulus. We developed the Efficient Visual Sampling (EVS) computational model to simulate our findings (fixation durations and fixation locations) and to provide insight into mixed control of fixations and the perceptual, cognitive, and motor processes that produce lag‐2 revisits. 相似文献
589.
Gender Differences in STEM Students' Perfectionism,Career Search Self‐Efficacy,and Perception of Career Barriers
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The purpose of this study was to explore potential gender differences in the mediating effect of career search self‐efficacy between 2 dimensions of perfectionism (adaptive and maladaptive) and the perception of career barriers. A total of 279 science, technology, engineering, and mathematics undergraduate students participated in the study. Among men, but not women, career search self‐efficacy mediated the relationships between both dimensions of perfectionism and the perception of career barriers. Implications for counselors and future research directions are discussed. 相似文献
590.
In multiple‐cue probabilistic inferences, people infer alternatives' unknown values on decision criteria, using alternatives' attributes as cues. Some inferential strategies, like take‐the‐best, assume that people consider relevant cues sequentially in order of decreasing validity. This assumption has been deemed cognitively implausible by some, who suggest memory retrieval principles to guide cue order. We test whether memory‐based inferences are better described by a model considering cues in order of validity or in order of memory retrieval. In an experiment, we manipulated the frequency with which cues appeared in a learning phase, increasing retrieval fluency of cue values related to the more frequently appearing cue. In a subsequent decision phase, participants made a series of two‐alternative decisions based on the learned cue values. We compared two sequential sampling models, which differed in whether cues are sampled in order of subjective cue validity or in order of retrieval fluency. To model retrieval order of cues in the fluency sampling model, we used the declarative memory theory embedded in the ACT‐R cognitive architecture. Most participants' decisions were best described by the model sampling cues in order of memory retrieval. Only a minority of participants were classified as sampling cues by validity. Our result suggests that retrieval fluency is the primary driver of cue order in inferences from memory, irrespective of the cues' validities. Copyright © 2017 John Wiley & Sons, Ltd. 相似文献