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211.
Past studies indicated that people in a minority (vs. majority) position are slower to express their public/political opinion, and the larger the difference between the size of the two positions, the slower the response. Bassili termed this the minority‐slowness effect (MSE). In the current study, two experiments were conducted to demonstrate that MSE extends to people's understanding of utterances and explored the cognitive basis for this. Participants were asked to judge if an utterance is a ‘direct’ or an ‘indirect’ expression. The results show that participants in the minority (vs. majority) took longer to respond, and the larger the difference between the size of majority and minority, the longer the response latency (Study 1a). Furthermore, participants were aware of their own minority position (Study 1b). In Study 2, when participants were deprived of cognitive resources, MSE disappeared, presumably because participants lack the cognitive resources required to conform to utterance interpretation as favoured by the majority.  相似文献   
212.
Epigenetic mechanisms are involved in programming gene expression throughout development. In addition, they are key contributors to the processes by which early-life experience fine-tunes the expression levels of key neuronal genes, governing learning and memory throughout life. Here we describe the long-lasting, bi-directional effects of early-life experience on learning and memory. We discuss how enriched postnatal experience enduringly augments spatial learning, and how chronic early-life stress results in persistent and progressive deficits in the structure and function of hippocampal neurons. The existing and emerging roles of epigenetic mechanisms in these fundamental neuroplasticity phenomena are illustrated.  相似文献   
213.
The way children evaluate the reporting of peers' transgressions to authority figures was investigated. Participants, ages 6-11 years (N = 60), were presented with a series of vignettes, each of which depicted a child who committed either a minor transgression (such as not finishing the vegetables at lunch) or a more serious transgression (such as stealing from a classmate). Participants were asked to evaluate the decision of a child observer who either did or did not report the transgression to a teacher. Younger children considered reporting to be appropriate for both types of transgressions, but older children considered reporting to be appropriate for major transgressions only. Results are interpreted with reference to (a) a changing peer culture in which the social cost of reporting transgressions increases and (b) a developmental change in children's cognitive capabilities.  相似文献   
214.
Abnormal fear responding to threat cues may contribute to the aetiology and maintenance of persistent fears and pathological anxiety. Chronic anxiety may also involve abnormal fear responding to ??safety?? cues, which do not signal danger. Yet investigations of fear responding to acquired safety cues are scarce and the basis of such responding remains unclear. Moreover, previous studies do not distinguish between stimulus generalization (an associative mechanism based on perceptual similarity between threat and safety cues) and sensitization (a non-associative mechanism whereby fear responses to any novel, intense, or fear-related stimulus are temporarily elevated). This study investigated responses to acquired safety cues in volunteers with varying trait anxiety, using a novel fear conditioning paradigm designed to distinguish between effects of trait anxiety on generalization and sensitization. The paradigm used three conditioned stimuli: a threat cue (CS+) and two safety cues (CS?), one perceptually similar to the CS+ and one perceptually dissimilar. Conditioned fear to these cues was indexed by fear potentiation of the startle blink reflex, skin conductance responses, and self-report. To examine how trait anxiety moderated responses to safety cues, participants were divided into high and low trait anxiety subgroups. Startle, skin conductance, and self-reported fear measures indicated that generalization of fear occurred for the safety cue which resembled the threat cue, but not for the perceptually dissimilar safety cue, consistent with the stimulus generalization hypothesis. There was some evidence that stimulus generalization was exaggerated in anxious individuals. The current study sheds light on the mechanism by which fear responses to safety cues arise in healthy individuals, and offers some insight into the influence of this mechanism in chronic anxiety.  相似文献   
215.
This paper applies the concept of diaspora to the analysis of the creation and maintenance of an ethnically diverse community of internationally educated medical graduates residing in Canada. Traditionally, the research on diaspora concerns ethnic communities that preserve their homeland ties while residing in foreign countries. We suggest, however, that ethnic roots are not imperative for the analysis of diasporic communities when other forms of shared values and meanings can become a basis for creation of collective identity. Reconfiguring both the homeland and host country as places of geographical and professional belonging provides opportunity to conceptualize an ethnically diverse group of immigrant physicians residing in Canada as professional diaspora. Probing the interviews with 67 international medical graduates living in Canada, we demonstrate (1) how they create medical diaspora, (2) what myths and sensitivities they share in constructing their professional and/or geographic homelands, and (3) the relationship they develop with their hosting society. We suggest that in spite of the increasing mobility of internationally educated health care providers, the analysis of professional diasporas could become a useful tool for analyzing complex relationships between home countries, hosting countries, and international travelers.  相似文献   
216.
In spite of a sizable body of research on the effects of information promotions on health knowledge and health behavior, relatively little is known about how such efforts affect change (or why they do not). This paper addresses that problem by exploring the particular role that health locus of control (HLC) beliefs play in individual responses to health promotion efforts aimed at encouraging preventive health behaviors. Two field experiments are presented. The first experiment examined the extent to which HLC beliefs are related to differences in individual levels of health knowledge following the distribution of an informational booklet on health. Internals high on health value who received the information booklet demonstrated greater health knowledge three months later than did other subjects, although this difference was greater among men than among women. The second experiment explored how HLC beliefs interact with differently framed “control” messages to promote behavior change in breast self-examination (BSE). HLC beliefs interacted with the control language of the BSE promotional message and a neutral reminder to affect subsequent BSE practice. Together, these studies suggest a more influential role for health locus of control beliefs in shaping responses to health messages than has previously been documented in field settings.  相似文献   
217.
Further explorations of common-sense representations of common illnesses   总被引:2,自引:0,他引:2  
A simple method is presented for measuring people's illness cognitions--their common-sense representations of common illnesses. Data were collected from 1,628 different respondents who described a recent illness form 1 to 3 separate times over a 17-month period. A free-clustering task performed by a set of naive participants confirmed that these cognitions fall into the five components that have been previously noted: identity, time line, consequences, cause, and cure. These five components are found to be reasonably stable over time and across different illness episodes. Several consequences of these illness cognitions, in terms of changes in health-locus-of-control beliefs and different propensities to visit a doctor, are also noted. Specifically, controllable attributions for getting sick and personal responsibility attributions for getting better are associated with increased beliefs in Self-Control Over Health and decreased beliefs in Chance Health Outcomes; people with strong Identity and Cure components in their common-sense representations of common illnesses have a greater propensity to visit a doctor when feeling ill.  相似文献   
218.
Although women typically favor affirmative action, they do exhibit a range of reactions to affirmative action programs. To understand the diversity of reactions, the present study proposed an examination of various forms of affirmative action in the context of the discrimination problem such actions were designed to address. In Study 1, 60 female university students were presented with one of six scenarios describing a situation of discrimination against women, followed by a series of potential affirmative action response options which participants rated in terms of their level of endorsement. Analyses of variance showed that, despite the range of discrimination scenarios, some of which presented extreme cases of discrimination against women, respondents consistently endorsed nondiscrimination measures, and opposed affirmative action strategies involving preferential treatment. Study 2, which preselected 43 women who valued social equality, replicated this finding and found that these results were not due to women not perceiving the presence of collective discrimination. Study 3 examined the attitudes of women in a law and security police training stream (n = 19), whose vulnerability to employment discrimination, both as a group and personally, would be salient. The women in this study endorsed all forms of affirmative action, including explicit preferential treatment in the hiring of women police officers. The implications of these results for the consideration and implementation of affirmative action programs are discussed.  相似文献   
219.
There have been several research studies in Britain and Australia into the usefulness of different career guidance activities. Similar issues are examined in a study of 493 undergraduates at City University of Hong Kong. The results demonstrate that the uses of counselling services have been perceived rather narrowly and instrumentally. Career guidance activities which are perceived as 'tools' for practical or immediate help have been under-utilised. The five most popular career guidance activities are characterised as being specific in content, information-based, externally focused, and structured in process. In examining the results within the context of Chinese culture, it is suggested that counselling processes which help the students engage in more self-exploration and self-discovery can be encouraged.  相似文献   
220.
The value preference of a sample of Chinese adolescent high school students, as measured by the Rokeach Value Survey, showed a greater emphasis on the personal and competency values. Specifically, adolescents in this study tended to favour a joyous, comfortable, free, and enjoyable lifestyle. It was found that the four most important terminal values were: freedom, true friendship, happiness, and a comfortable life, while the four least important were: mature love, national security, an exciting life, and salvation. The four most important instrumental values included: capable, cheerful, broadminded, and intellectual, while the four least important included: logical, imaginative, clean, and obedient. The relationships between value preference and sex role were examined and close relationships were found, especially with respect to the instrumental values. Specifically, masculine adolescents were more agentic and instrumental, and feminine adolescents were more expressive and communal in their value preference. Androgynous adolescents were found more similar to the masculine than to the feminine group. In addition, regression analyses showed that masculinity tended to have more pervasive effects than femininity on adolescents' value preference. The implications and significance of the findings of this study in contrasting the general collectivistic depiction of Chinese and in relating to adolescent development, are discussed.  相似文献   
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