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181.
Large-scale neural network for sentence processing   总被引:4,自引:0,他引:4  
Our model of sentence comprehension includes at least grammatical processes important for structure-building, and executive resources such as working memory that support these grammatical processes. We hypothesized that a core network of brain regions supports grammatical processes, and that additional brain regions are activated depending on the working memory demands associated with processing a particular grammatical feature. We used functional magnetic resonance imaging (fMRI) to test this hypothesis by comparing cortical activation patterns during coherence judgments of sentences with three different syntactic features. We found activation of the ventral portion of left inferior frontal cortex during judgments of violations of each grammatical feature. Increased recruitment of the dorsal portion of left inferior frontal cortex was seen during judgments of violations of specific grammatical features that appear to involve a more prominent working memory component. Left posterolateral temporal cortex and anterior cingulate were also implicated in judging some of the grammatical features. Our observations are consistent with a large-scale neural network for sentence processing that includes a core set of regions for detecting and repairing several different kinds of grammatical features, and additional regions that appear to participate depending on the working memory demands associated with processing a particular grammatical feature.  相似文献   
182.
In 7 experiments, the authors explored whether visual attention (the ability to select relevant visual information) and visual working memory (the ability to retain relevant visual information) share the same content representations. The presence of singleton distractors interfered more strongly with a visual search task when it was accompanied by an additional memory task. Singleton distractors interfered even more when they were identical or related to the object held in memory, but only when it was difficult to verbalize the memory content. Furthermore, this content-specific interaction occurred for features that were relevant to the memory task but not for irrelevant features of the same object or for once-remembered objects that could be forgotten. Finally, memory-related distractors attracted more eye movements but did not result in longer fixations. The results demonstrate memory-driven attentional capture on the basis of content-specific representations.  相似文献   
183.
The present paper deals with three positive facets of the work-family interplay, i.e., transfer of competencies, transfer of positive mood, and cross-domain compensation. The latter refers to the experience that engagement in one domain helps dealing with failures in the other domain. In two correlational studies (N1 = 107 working mothers, N2 = 146 working men and women), cross-domain compensation predicted domain-specific well-being even when we controlled for work-family conflicts and the two other positive facets (viz., transfer of competencies and positive mood). In an additional experiment (N3 = 63 working men and women), which exclusively focused on compensation, participants were asked to remember a job-related failure. Then they were instructed to think about a positive job-related experience (i.e., intradomain compensation) or family-related experience (i.e., cross-domain compensation). Compared to a control group, both experimental groups showed faster emotional recovery, with cross-domain compensation being a slightly more effective strategy at the beginning of that recovery.  相似文献   
184.
The Elaborated Intrusion (EI) theory of desire posits that visual imagery plays a key role in craving. We report a series of experiments testing this hypothesis in a drug addiction context. Experiment 1 showed that a mental visual imagery task with neutral content reduced cigarette craving in abstaining smokers, but that an equivalent auditory task did not. The effect of visual imagery was replicated in Experiment 2, which also showed comparable effects of non-imagery visual working memory interference. Experiment 3 showed that the benefit of visual over auditory interference was not dependent upon imagery being used to induce craving. Experiment 4 compared a visuomotor task, making shapes from modeling clay, with a verbal task (counting back from 100), and again showed a benefit of the visual over the non-visual task.We conclude that visual imagery supports craving for cigarettes. Competing imagery or visual working memory tasks may help tackle craving in smokers trying to quit.  相似文献   
185.
This paper explores the impact of remuneration differences on workers in the Solomon Islands and Papua New Guinea. In these countries remunerative differences are linked to government policy (in Papua New Guinea) and job contracts (in the Solomon Islands), and have impacted on industrial relations in both settings (strike action). A total of N = 350 professionals (n = 60 expatriates) from 54 organizations in aid, government, higher education and industry (mean response rate = 36%) responded to an organizational survey form. Remuneration ratios between international and local respondents based on the World Bank's index of purchasing power parity approached 9:1. In both sites staff compared pay and benefits (remuneration) packages: Internationally remunerated staff rated their ability higher than their local counterparts did; locally remunerated groups reported more injustice in remuneration, were more demotivated by the gaps, and were more likely to be thinking about leaving the organization. In-country workshops of N = 40 largely local stakeholders from aid and community organizations plus government ministries considered the survey's findings and recommended: in Solomon Islands, (a) introducing a policy of localization, (b) establishing a remuneration commission (already existent in Papua New Guinea), and (c) reducing the remunerative gap; in Papua New Guinea, (d) reversing the post-Independence "dual pay system" (currently official policy), (e) instituting pay-for-performance, and (f) ensuring the existent localization policy is applied to recruitment, selection, and staff career planning and management.  相似文献   
186.
Within organizational judgment and decision making contexts, biases based on an evaluated person's attractiveness are among the most salient and frequently investigated. An enormous amount of research indicates favoritism for attractive people compared to unattractive ones. The current research demonstrates that the nature of this bias depends on whether one is evaluating a member of the same sex or the opposite sex. Experiment 1 (n = 2639) investigated selection of scholarship applicants and demonstrated that a pro-attractiveness bias held only for selection of opposite-sex scholarship applicants; no such bias was observed for highly attractive same-sex applicants. Experiment 2 (n = 622) investigated evaluations of prospective job candidates and demonstrated again that pro-attractiveness bias was observed only for opposite-sex candidates; participants discriminated against highly attractive same-sex candidates. Moreover, this bias was not observed among highly attractive participants; it held only for moderately attractive participants, those for whom highly attractive same-sex individuals can pose especially potent social threats. Findings suggest that attractiveness biases in organizational decision making are rooted partly in the social threats and opportunities afforded by attractive people.  相似文献   
187.
Traumatic experiences can become the central mental content in our psychic structure and can deeply mark all our later perceptions and experiences of our surroundings. We can claim something similar also for addictions of all kinds. In this article, we will demonstrate that recurring traumatic experiences and abuse as well as addiction represent a hidden mission of psyche for resolution and a great cry of longing for salvation.  相似文献   
188.
An evolutionary perspective provides a conceptual framework with which to study adaptive processes that facilitate the maintenance of long-term relationships. One common relationship threat people face involves exposure to tempting relationship alternatives. Desirable relationship alternatives can threaten people's relationship commitment and, consequently, evoke relationship maintenance processes designed to protect people's relationship esteem. The current research examined whether cues of female ovulation–an important reproductive variable–evokes relationship maintenance processes in committed men. Men rated the attractiveness of a normally cycling relationship alternative at various points in her menstrual cycle. Unlike single men, who rated the woman as especially attractive when she was highly fertile, committed men exhibited the opposite pattern, rating her as less attractive during her period of peak fertility. This research illustrates the utility of integrating theories of relationship maintenance with evolutionary psychological theories of mating.  相似文献   
189.
The principal aim of this study is to determine why police officers are generally found to be more prejudiced towards disadvantaged groups than are the standard population. Two independent processes were expected to account for this effect: Selection and group socialisation. Using a cross‐sectional design (N = 170), firstly, we compared, newly recruited police officers with a control population (selection effect), and secondly, police officers with 1 year of training with the newly recruited ones (group socialisation effect). Results reveal a significant effect of both selection and group socialisation, the two being underlined by distinct processes; right‐wing authoritarianism (RWA) in the case of the former and internalisation of a prejudice norm in the case of the latter. Finally, the results show that group identification moderates the change in internalisation of the prejudice norm. Copyright © 2009 John Wiley & Sons, Ltd.  相似文献   
190.
This study examined whether the effect of social group norms on 7‐ and 10‐year‐old children's aggression can be moderated or extinguished by contrary school norms. Children (n=384) participated in a simulation in which they were assigned membership in a social group for a drawing competition against an outgroup. Participants learnt that their group had a norm of inclusion, exclusion, or exclusion‐plus‐relational aggression, toward non‐group members, and that the school either had a norm of inclusion, or no such norm. Findings indicated that group norms influenced the participants' direct and indirect aggressive intentions, but that the school norm moderated the group norm effect, with the school's norm effect tending to be greater for indirect vs. direct aggression, males vs. females, and younger vs. older participants. Discussion focused on how school norms can be developed, endorsed, and presented so that they have their most lasting effect on children. Aggr. Behav. 36:195–204, 2010. © 2010 Wiley‐Liss, Inc.  相似文献   
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