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541.
The classification of names of people or objects based on the features acquired by the names and the sorting instructions provided is a commonplace occurrence. For example, given the names Renoir, Pollock, James and Voltaire the average adult would be able to classify them differentially based on the instruction to classify them based on vocation or nationality. In general, such a repertoire reflects the reclassification of symbols (i.e, the names of individuals) in terms of contextual cues (instructions to sort by vocation or nationality) and the features acquired by the symbols (the specific nationalities and vocations). The present experiment studied this phenomenon with the use of arbitrary stimuli that did not have clear preexperimental associations. Two of 4 participants classified the symbols into different equivalence classes based on the prevailing contextual cues and the features that had been acquired by the symbols. Using an ABA reversal design we then demonstrated that 1 participant classified the symbols in accordance with the contextual cues and acquired features when present, but not in the absence of the contextual cues. A 3rd participant showed symbol classification that differed from that predicted by the procedures, and the 4th classified the symbols based on one set of features but not on context. These data describe one set of conditions that could account for the establishment of complex classification repertoires that occur in natural settings. 相似文献
542.
Stefan Pollmann 《British journal of psychology (London, England : 1953)》2019,110(2):372-380
When spatial stimulus configurations repeat in visual search, a search facilitation, resulting in shorter search times, can be observed that is due to incidental learning. This contextual cueing effect appears to be rather implicit, uncorrelated with observers’ explicit memory of display configurations. Nevertheless, as I review here, this search facilitation due to contextual cueing depends on visuospatial working memory resources, and it disappears when visuospatial working memory is loaded by a concurrent delayed match to sample task. However, the search facilitation immediately recovers for displays learnt under visuospatial working memory load when this load is removed in a subsequent test phase. Thus, latent learning of visuospatial configurations does not depend on visuospatial working memory, but the expression of learning, as memory‐guided search in repeated displays, does. This working memory dependence has also consequences for visual search with foveal vision loss, where top‐down controlled visual exploration strategies pose high demands on visuospatial working memory, in this way interfering with memory‐guided search in repeated displays. Converging evidence for the contribution of working memory to contextual cueing comes from neuroimaging data demonstrating that distinct cortical areas along the intraparietal sulcus as well as more ventral parieto‐occipital cortex are jointly activated by visual working memory and contextual cueing. 相似文献
543.
Bimanual coordination requires task-specific control of the spatial and temporal characteristics of the movements of both hands. The present study focused on the spatial relationship between hand movements when their amplitude and direction were manipulated. In the experiment in question, participants were instructed to draw two lines simultaneously. These two lines were instructed to be drawn in mirror symmetric or perpendicular directions of each other while the length was instructed to be the same or different. The coordinative quality of amplitude control was compared when the task required symmetric and asymmetric bimanual spatial coordination patterns. Results showed that the amplitude accuracy decreased when different amplitudes and/or directions had to be generated simultaneously. The coordinative quality of direction was also compared when the task required symmetric and asymmetric bimanual spatial coordination patterns. Unlike amplitude, the direction accuracy was largely independent of coordination symmetry/asymmetry of direction or amplitude. The results suggest that the coordinative quality of amplitude control does not only interfere with amplitude asymmetry, but it also interferes with direction asymmetry. Moreover, in bimanual coordination amplitude control is more vulnerable to the influence of direction control demands than vice versa. 相似文献
544.
There is some evidence that alternating physical and observational practice with a partner for the same skill can benefit learning compared to practice alone. What has not been studied is whether a partner's interleaved practice impacts multi-skill learning, when the partner either matches or mismatches their partner’s skill. Here we manipulated partners’ practice schedules of two golf putting skills. Partners practiced the same (“matched”) or different skills in alternation (“mismatched”). Based on previous research where interleaved demonstrations have induced beneficial contextual interference effects, we hypothesized that mismatching a partner on consecutive trials should also promote a similar type of interference in practice, which ultimately aids learning. A third control group was tested, where only one partner practiced while the other observed. All groups practiced for two days, with individual retention tests at the start of day 2 and one week later. Taking turns practicing and observing a partner did not benefit learning compared to the control, pure physical practice group and the matched and mismatched groups did not differ in outcomes. There was, however, evidence that partners were adapting their actions (i.e., compensating for over or undershooting of the target) based on the shots of their partner, in a similar manner to how they were adapting to their own errors. Thus, although partners were influencing each other’s performance, it was not ultimately to the benefit (or cost) of overall learning. Partner-mismatching of skills through alternating practice was not sufficient to promote interference in practice and ultimately promote learning. 相似文献
545.
Because negative emotional memories are often disruptive, we conducted two experiments to reduce these memories by using a retroactive interference (RI) paradigm. In both experiments, participants were presented with highly negative pictures (List 1) followed by highly negative, moderately negative, or neutral pictures (List 2) or a rest period. Then, following a filler task, participants took a surprise free recall test, recalling pictures from List 1 in Experiment 1 and from both List 1 and List 2 in Experiment 2. In both experiments, recall of List 1 was reduced by List 2, indicating that RI was present. Furthermore, in Experiment 1, RI was similar between moderately negative and highly negative List 2 whereas in Experiment 2, RI was greater for highly negative List 2 than moderately negative List 2. These results showed that RI can be used to reduce negative emotional memories by making these memories inaccessible. 相似文献
546.
Sonja Žorga 《Journal of Adult Development》2003,10(2):127-134
This paper discusses supervision as a means of professional and personal development in adulthood and analyzes its relevant mechanisms and processes. By using several theoretical concepts of development the stage and contextual approaches to supervision are discussed. While the stage approach describes the movement of supervisee, supervisor, and supervision relationship along perceivable and predictable stages, the contextual approach understands the development of an adult as a progression towards increased differentiation and integration of some of its functions, to which experiences, the context of one's life, and one's own activity contribute a great deal. 相似文献
547.
Production blocking and idea generation: Does blocking interfere with cognitive processes? 总被引:1,自引:0,他引:1
Production blocking (group members must take turns expressing their ideas) is an important cause of productivity loss in brainstorming groups. However, it is not yet clear why production blocking has this detrimental effect. We hypothesized that delays between the generation and articulation of ideas, arising when group members wait for their turns, interfere with the cognitive process of generating ideas. In three experiments, production blocking was simulated for individuals working at computer terminals. Production blocking interfered with idea generation in two ways. First, it disrupted the organization of idea generation when delays were relatively long. Second, it reduced the flexibility of idea generation when delays were unpredictable. Implications for group information processing are discussed. 相似文献
548.
The relation of role involvement to work-family interference has had inconsistent results in past research. By paying closer conceptual attention to the measurement of role involvement and work-family interference, this study addresses past inconsistent findings. First, a new four-factor measure of work-family interference is proposed that incorporates the dimension of externally generated versus internally generated conflict, which has been ignored in previous research. Second, role involvement is considered from both a behavioral and a psychological perspective. Data were obtained from a sample of 534 employed adults with families. The results suggest that a mapping of behavioral and psychological involvement to specific dimensions of external and internal work- family interference appears to be important when examining the general relation of role involvement to work-family interference. 相似文献
549.
550.
背景线索效应是指在视觉搜索中由于场景的重复曝光而产生的行为便利。而以往研究关注于刺激的欧式性质所代表的属性信息对背景线索效应的影响, 然而在视知觉加工过程中扮演重要角色的拓扑性质对背景线索效应的影响仍缺乏相关实证研究。因此, 研究采用视觉搜索任务, 通过操控不同场景中刺激的拓扑性质或欧式性质的变化, 考察拓扑性质与欧式性质两种属性信息对背景线索效应的调制。结果发现:(1)拓扑性质和欧式性质与目标之间的联结关系均可促进行为反应, 获得背景线索效应; (2)视觉学习机制对拓扑性质的重复性更加敏感, 并且拓扑性质与目标之间联结关系的稳定性相对于欧式性质与目标之间的联结关系稳定性对于背景线索效应的获得具有更为重要的意义。 相似文献