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341.
Behavioral flexibility is considered by some to be one of the hallmarks of advanced cognitive ability. One measure of behavioral flexibility is how subjects respond to novel objects. Despite growing interest in comparative cognition, no comparative research on neophilia in wild primates has been conducted. Here, we compare responses to novel objects in wild chacma baboons (Papio ursinus) and geladas (Theropithecus gelada). Baboons and geladas are closely related taxa, yet they differ in their ecology and degree of social tolerance: (1) baboons are habitat and dietary generalists, whereas geladas have one of the most specialized primate diets (90% grass); (2) baboons exhibit an aversion toward extra-group individuals, whereas geladas typically exhibit an attraction toward them. Using subjects of all age and sex classes, we examined responses to three different objects: a plastic doll, a rubber ball, and a metal can. Overall, baboon subjects exhibited stronger responses to the objects (greater neophilia and exploration) than gelada subjects, yet we found no evidence that the geladas were afraid of the objects. Furthermore, baboons interacted with the objects in the same way they might interact with a potential food item. Responses were unrelated to sex, but immatures showed more object exploration than adults. Results corroborate novel object research conducted in captive populations and suggest that baboons and geladas have differences in behavioral flexibility (at least in this cognitive domain) that have been shaped by ecological (rather than social) differences between the two species. Electronic supplementary material  The online version of this article (doi:) contains supplementary material, which is available to authorized users.  相似文献   
342.
Vreven D  Berge J 《Perception》2007,36(12):1769-1778
Glass patterns are visual stimuli used here to study how local orientation signals are spatially integrated into global pattern perception. We measured a form aftereffect from adaptation to both static and dynamic Glass patterns and calculated the amount of interocular transfer to determine the binocularity of the detectors responsible for the perception of global structure. Both static and dynamic adaptation produced significant form aftereffects and showed a very high degree of interocular transfer, suggesting that Glass-pattern perception involves cortical processing beyond primary visual cortex. Surprisingly, dynamic adaptation produced significantly greater interocular transfer than static adaptation. Our results suggest a functional interaction between local orientation processing and global motion processing that contributes to form perception.  相似文献   
343.
This study assessed the longitudinal process by which marital adjustment affects change in maternal warmth over time. Change in coparenting support was examined as the potential mechanism by which the marriage affects parenting. Self-report data were gathered from 148 married mothers of first-born 4th graders at 3 time points, over the transition to early adolescence. Path analyses supported the proposed hypothesis, indicating that marital adjustment leads to increased coparenting support, which then leads to increased maternal warmth. Two alternative models of the time-ordered direction of effects among the study variables were ruled out. This study has important implications for the development of parenting interventions targeting the promotion of maternal warmth.  相似文献   
344.
This report examines (1) the prevalence of dating violence victimization from a national sample of rural adolescents and (2) patterns by gender and region. Analyses are based on 20,274 adolescents who reported violence victimization using the Community Drug and Alcohol Survey. The relationship of dating violence with gender and region was assessed with HLM5 using Bernoulli's logistic regression. Approximately 16% of adolescents reported being a victim of dating violence. Females reported higher incidence of victimization than males. Dating violence is more prevalent in the South. While it is important to address the underlying values in society that may contribute to dating violence, it is equally productive to include regional and cultural values.  相似文献   
345.
We examine two issues linking personality pathology and judgment of traits within the Five-Factor Model of personality. We hypothesize that pathology moderates self-other agreement--"target" participants with pathology should be less judgable than participants without pathology. In addition, we hypothesize that pathology could partially produce agreement across a variety of traits, particularly those traits fundamental to the pathology. In an adolescent sample including a group with Conduct Disorder (CD) and a Control group, we examine agreement between adolescents' self-reports and their mothers' informant reports. Using trait-centered and person-centered perspectives, we find support for both hypotheses. Results have implications for understanding the processes affecting personality judgment, for increasing integration of traditional personality research and personality pathology, and for personality assessment.  相似文献   
346.
The authors examined the influence of different amounts of visual information when children 4 (CH4), 6 (CH6), and 8 (CH8) years of age, and adults (n = 12 in each group) performed a steady-state bimanual circle-drawing coordination task at self-selected speeds. All participants maintained in-phase coordination, but different strategies for maintaining the pattern emerged. A predictable relationship between variability and age was not observed, in that the CH8 group was not necessarily more consistent than the CH6 and CH4 groups. The authors conclude that children are transitioning from dependence on kinesthetic feedback to reliance on visual feedback around age 8, as suggested by L. Hay, C. Bard, M. Fleury, and N. Teasdale (1991; L. Hay, M. Fleury, C. Bard, & N. Teasdale, 1994; L. Hay & C. Redon, 1997), and that future studies are needed to further explore visual and kinesthetic feedback as potential control parameters during coordination tasks in developing children.  相似文献   
347.
The purpose of this exploratory study was to examine the associations between the student-teacher relationship and outcomes for African American students who were behaviorally at-risk for referral to special education. Students were identified by their teachers as having behavior problems. Participants were 44 students and 25 teachers from two suburban and three urban elementary schools in a mid-western state. A multi-rater, multi-method approach was used. As teacher-reports of student-teacher relationship quality increased, there were also increases in positive social, behavioral, and engagement outcomes for students. Similarly, as student-reports of student-teacher relationship quality increased, there were increases in positive behavioral, engagement, and academic outcomes. Additional analyses of dyadic relationship patterns showed that as the relationship pattern improved (moving from negative concordance to discordance to positive concordance), there were increases in positive social, behavioral, and engagement outcomes for students. Implications for school practice are discussed.  相似文献   
348.
The attitudes of students toward technologies related to conception were assessed in 1984 and again in 1999. It was expected that increased routinization of such technologies over time would result in higher approval ratings in the second survey. This hypothesis was not supported by the results; there were no changes in approval for most methods that were included in both surveys, and in some cases, approval decreased. It was also hypothesized that methods included in the 1984 survey would receive higher approval than would newer technologies added in 1999, and this was supported by the data. Differences in approval of specific items were found by the gender and religion of respondents. Results suggest that methods involving donors continue to be unacceptable to most students, that the "older" methods are not becoming more acceptable, and that newer methods (gestational surrogacy, egg donation, and cloning) are even more problematic.  相似文献   
349.
In this research, we examine salespeople's behavior in individual pay-for-performance compensation systems and show how perceived management fairness seems to energize sales employees in some environments but not in others. We use a large multicountry database of individual-level remuneration for more than 2,500 salespeople across four B2B industry sectors to demonstrate cultural adaptations of the effect of perceived management fairness. The results indicate that top management should be concerned with employees' perceptions of fairness in addition to the more typical concerns of control and motivation widely acknowledged in the microeconomics-based sales-force compensation literature. In particular, we show that perceptions of management fairness are key to salespeople's proportion of total pay generated by pay-for-performance formulas.  相似文献   
350.
In the last decade, an increasing number of cardiac conditions have been shown to have a genetic basis. Cardiovascular genetic counseling has emerged as a subspecialty aiming to identify unaffected at-risk individuals. An important sector of this at-risk population also includes expectant mothers, in whom unique clinical challenges may arise. Genetic counselors, especially those in cardiovascular and prenatal settings, have an opportunity to identify and assist women who may benefit from cardiovascular care during pregnancy. This paper provides basic management and genetic evaluation principles for affected women, as well as guidance on identifying those who are at risk. We provide considerations for cardiac surveillance in pregnancy and the post-partum period. Finally, key psychosocial issues that appraise how to best provide support to at risk women as they make informed decisions are discussed. We propose that a team approach including cardiology, maternal fetal medicine, and genetic counseling best serves this patient population. Ongoing questions addressing an evidence based approach to cardiovascular genetic conditions in pregnancy still remain. Thus, well-designed research protocols are essential to mark progress in this area.  相似文献   
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