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181.
A sample of 183 medical students completed the Mayer-Salovey-Caruso Emotional Intelligence Test (MSCEIT V2.0). Scores on the test were examined for evidence of reliability and factorial validity. Although Cronbach's alpha for the total scores was adequate (.79), many of the scales had low internal consistency (scale alphas ranged from .34 to .77; median = .48). Previous factor analyses of the MSCEIT are critiqued and the rationale for the current analysis is presented. Both confirmatory and exploratory factor analyses of the MSCEIT item parcels are reported. Pictures and faces items formed separate factors rather than loading on a Perception factor. Emotional Management appeared as a factor, but items from Blends and Facilitation failed to load consistently on any factor, rendering factors for Emotional Understanding and Emotional Facilitation problematic.  相似文献   
182.
Salient visual singleton stimuli produce spatial cueing effects indicative of attentional capture only when they match current task sets, suggesting that capture is subject to top-down control. However, such task-set contingent capture effects could be associated with the top-down controlled disengagement of attention from non-matching stimuli that follows their initial bottom-up salience-driven selection. Using the N2pc component as an event-related potential marker of attentional capture, we demonstrate that top-down task set already controls the initial rapid selection of salient visual singleton stimuli prior to any subsequent attentional disengagement. These findings provide new evidence for the primacy of top-down control over bottom-up salience in attentional capture.  相似文献   
183.
Research has shown that temporarily primed motivational orientations have essentially the same effects on how people pursue their goals as their chronic orientations. This article shows that, despite the interchangeability of temporary and chronic motivations, primed motivational orientations that are incongruent with chronic orientations create interference, requiring the deployment of cognitive resources and thus undermining performance on subsequent tasks that rely on these resources. Across 6 studies, we primed motivational orientations that were either congruent or incongruent with participants' chronic orientations and then assessed their performance on subsequent tasks that required cognitive resources. Consistent with the primed interference hypothesis, we found that incongruity between temporary and chronic motivational orientations undermined participants' (a) inhibition of incorrect but highly accessible responses, (b) mental arithmetic, (c) analytical reasoning, and (d) resistance to temptation. These results--which were observed following the activation of motivations for promotion or prevention (Studies 1-2 and 5-6), high or low need for belonging (Study 3), and high or low power orientations (Study 4)--illustrate the broad implications of holding incongruent chronic and primed orientations.  相似文献   
184.
Activation of the in vivo stress response can facilitate antibacterial host defenses. One possible mechanism for this effect is stress-induced release of heat shock protein 72 (Hsp72) into the extracellular environment. Hsp72 is a ubiquitous cellular protein that is up-regulated in response to cellular stress, and modulates various aspects of immune function including macrophage inflammatory/bactericidal responses and T-cell function when found in the extracellular environment. The current study tested the hypothesis that in vivo extracellular Hsp72 (eHsp72) at the site of inflammation contributes to stress-induced restricted development of bacteria, and facilitated recovery from bacteria-induced inflammation, and that this effect is independent of alpha beta (αβ) T cells. Male F344 rats were exposed to either inescapable electrical tail-shocks or no stress, and subcutaneously injected with Escherichia coli (ATCC 15746). The role of eHsp72 was investigated by Hsp72-immunoneutralization at the inflammatory site. The potential contribution of T cells was examined by testing male athymic (rnu/rnu) nude rats lacking mature αβ T cells and heterozygous thymic intact control (rnu/+) rats. The results were that stressor exposure increased plasma concentrations of eHsp72 and facilitated recovery from bacterial inflammation. Immunoneutralization of eHsp72 at the inflammatory site attenuated this effect. Stressor exposure impacted bacterial inflammation and eHsp72 equally in both athymic and intact control rats. These results support the hypothesis that eHsp72 at the site of inflammation, and not αβ T cells, contributes to the effect of stressor exposure on subcutaneous bacterial inflammation.  相似文献   
185.
Classical theories of automaticity assume that automatic processes elicited by unconscious stimuli are autonomous and independent of higher-level cognitive influences. In contrast to these classical conceptions, we argue that automatic processing depends on attentional amplification of task-congruent processing pathways and propose an attentional sensitization model of unconscious visual processing: According to this model, unconscious visual processing is automatic in the sense that it is initiated without deliberate intention. However, unconscious visual processing is susceptible to attentional top-down control and is only elicited if the cognitive system is configured accordingly. In this article, we describe our attentional sensitization model and review recent evidence demonstrating attentional influences on subliminal priming, a prototypical example of an automatic process. We show that subliminal priming (a) depends on attentional resources, (b) is susceptible to stimulus expectations, (c) is influenced by action intentions, and (d) is modulated by task sets. These data suggest that attention enhances or attenuates unconscious visual processes in congruency with attentional task representations similar to conscious perception. We argue that seemingly paradoxical, hitherto unexplained findings regarding the automaticity of the underlying processes in many cognitive domains can be easily accommodated by our attentional sensitization model. We conclude this review with a discussion of future research questions regar-ding the nature of attentional control of unconscious visual processing.  相似文献   
186.
Early preventive interventions for depressive disorders in racial/ethnic minorities may help to reduce lifetime depression outcome disparities by improving developmental trajectories and social outcomes. We describe the development process, intervention and evaluation plan for a culturally adapted, low-cost, primary care/Internet-based depression-prevention intervention (CURB, Chicago Urban Resiliency Building). CURB is culturally adapted for socio-economically disadvantaged African-American and Latino adolescents according to the PEN-3 model of health promotion programs (Airhihenbuwa in Health and culture: beyond the Western paradigm, Sage Publishers, Thousand Oaks, 1995). Based on the idea that health behavior is rooted in culture, the PEN-3 model contains three interdependent dimensions that influence health beliefs and behaviors. Within each dimension are factors (using the acronym PEN) that must be considered about the target culture. Application of the PEN-3 model occurred in 3 phases. In each phase, a dimension of the model was explored and subsequent changes were made to the intervention so as to be more culturally suitable. In the CURB clinical trial, adolescents ages 13–17 will be recruited from wait-lists for mental health services at community health care provider organizations and screened for risk of future depressive disorder in the primary care sites. Adolescents screening positive for persistent depressed mood will be randomly assigned to either the CURB intervention group or the wait-list control group. The study aims are to determine if participants in the CURB intervention group will have lower levels of depressive symptoms and/or a lower cumulative incidence of depressive episodes.  相似文献   
187.
Ambiguous (or bistable) figures are visual stimuli that have two mutually exclusive perceptual interpretations that spontaneously alternate with each other. Perceptual reversals, as compared with non-reversals, typically elicit a negative difference called reversal negativity (RN), peaking around 250 ms from stimulus onset. The cognitive interpretation of RN remains unclear: it may reflect either bottom-up processes, attentional processes that select between the alternative views of the stimulus, or it may reflect the change in the contents of subjective awareness. In the present study, event-related potentials in response to endogenous unilateral and bilateral reversals of two Necker lattices were compared with exogenously induced reversals of unambiguous lattices. The RN neither resembled the attention-related N2pc response, nor did it correlate with the content of subjective visual awareness. Thus, we conclude that RN is a non-attentional ERP correlate of the changes in the perceptual configuration of the presented object.  相似文献   
188.
This systematic review and meta-analysis examined the efficacy of adolescent cognitive–behavioral sleep interventions. Searches of PubMed, PsycINFO, CENTRAL, EMBASE, and MEDLINE were performed from inception to May 1, 2016, supplemented with manual screening. Nine trials were selected (n = 357, mean age = 14.97 years; female = 61.74%). Main outcomes were subjective (sleep diary/questionnaire) and objective (actigraphy) total sleep time (TST), sleep onset latency (SOL), sleep efficiency (SE), and wake after sleep onset (WASO). There were a small number of randomized controlled trials (RCTs; n = 4) and a high risk of bias across the RCTs; therefore, within sleep condition meta-analyses were examined (n = 221). At post-intervention, subjective TST improved by 29.47 min (95% CI 17.18, 41.75), SOL by 21.44 min (95% CI ?30.78, ?12.11), SE by 5.34% (95% CI 2.64, 8.04), and WASO by a medium effect size [d = 0.59 (95% CI 0.36, 0.82)]. Objective SOL improved by 16.15 min (95% CI ?26.13, ?6.17) and SE by 2.82% (95% CI 0.58, 5.07). Global sleep quality, daytime sleepiness, depression, and anxiety also improved. Gains were generally maintained over time. Preliminary evidence suggests that adolescent cognitive–behavioral sleep interventions are effective, but further high-quality RCTs are needed. Suggestions for further research are provided.  相似文献   
189.
The main aim of the current study is to examine the changes in the components of subjective well-being (SWB) over time in patients with osteoarthritis who have undergone total hip or knee replacement surgery (arthroplasty). We are also interested in determining whether pre-operative ratings of self-reported health (SRH) status, as well as change in health status, can serve as predictors for postoperative levels of SWB. To this end, 50 participants who had been admitted to a hospital for arthroplasty completed the measures twice—first at the clinic one day before the surgery, and then at home approximately 4.5 months after the surgery. Despite the fact that there were substantial improvements in participants’ health and physical functioning after the arthroplasty, there were no changes in their ratings of general SRH, life satisfaction (LS), or negative affect (NA). The only change in SWB scores was in the level of positive affect (PA), which was significantly higher after surgery compared with the pre-operative measurement. LS, NA, and PA scores after arthroplasty were differentially predicted by health ratings, showing that, it is the cognitive-evaluative component of SWB (i.e., LS) that is mostly responsible for the association between general SRH and SWB while affective components (i.e., NA and PA) are primarily related to more specific health indicators. Our findings can assist physicians in their efforts to provide more realistic expectations for their patients undergoing surgery in terms of the physical and psychological outcome.  相似文献   
190.
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