首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1488篇
  免费   54篇
  1542篇
  2022年   7篇
  2020年   29篇
  2019年   26篇
  2018年   28篇
  2017年   33篇
  2016年   42篇
  2015年   40篇
  2014年   26篇
  2013年   180篇
  2012年   56篇
  2011年   66篇
  2010年   28篇
  2009年   37篇
  2008年   49篇
  2007年   48篇
  2006年   54篇
  2005年   43篇
  2004年   54篇
  2003年   43篇
  2002年   60篇
  2001年   27篇
  2000年   16篇
  1999年   23篇
  1998年   21篇
  1997年   20篇
  1996年   25篇
  1995年   24篇
  1994年   20篇
  1993年   30篇
  1992年   16篇
  1991年   27篇
  1990年   21篇
  1989年   17篇
  1988年   25篇
  1987年   17篇
  1986年   16篇
  1985年   22篇
  1984年   13篇
  1983年   22篇
  1982年   23篇
  1981年   27篇
  1980年   16篇
  1979年   12篇
  1978年   18篇
  1977年   19篇
  1976年   14篇
  1975年   7篇
  1974年   9篇
  1973年   8篇
  1972年   7篇
排序方式: 共有1542条查询结果,搜索用时 0 毫秒
941.
942.
Wales and Grieve (1969) report an experiment in which they show that a factor of “confusability” affects the comprehension of affirmative and negative sentences, and then claim that this is a relevant factor in explaining the difficulty of negatives. The present paper submits arguments and experimental evidence to dispute this claim.  相似文献   
943.
Depression is prevalent among mothers who participate in home visitation programs. This case study describes In-Home Cognitive Behavioral Therapy (IH-CBT), an empirically based treatment for depressed mothers that is strongly integrated with ongoing home visitation. The use of a Parenting Enhancement for Maternal Depression (PEMD) module was added to address parenting difficulties in a depressed mother. This case describes issues and challenges encountered in delivering treatment in the home with low-income, depressed mothers. Issues involving engagement, adaptation to the setting, responding to the unique needs of low-income mothers, and partnership with concurrent home visiting to optimize outcomes are considered. Long-term follow-up (18 months after the end of treatment) permits examination of sustainability of gains. Implications for treating this high-risk population are discussed.  相似文献   
944.
In this paper, the author discusses the recurrence of infantile, proto-mental functioning in adolescence mainly in the context of the work of Frances Tustin. She demonstrates, through clinical example, how the tendency to resort to bodily centered and sensation-dominated protections is reactivated on a grand scale when the internal and external physical and psychological changes, brought on in puberty, are felt to be potentially overwhelming. She also demonstrates how, when the capacity for adequate mental and emotional development is stultified, sensation and action once again come to the rescue as the adolescent's way of attenuating anxieties unconsciously experienced as resonating with those unmentalized happenings of early infancy and how the psychoanalytic relationship may be pivotal in setting previously derailed mental and emotional growth back on track.  相似文献   
945.
This study examined whether the severity of cerebral white matter abnormalities (evident on MR images as white matter hyperintensities (WMH)) was related to the cognitive performance of 141 high-functioning older adults. The elderly showed the typical age decrement on measures of processing speed, working memory, and inhibition; however WMH severity was significantly related only to processing speed. The strength of this relationship was, however, influenced by the educational level of the participants, such that processing speed was more associated with WMH severity in less-educated than in well-educated participants. This is consistent with recent concepts of cognitive reserve, but does raise a question as to the underlying source of the cognitive decrement found in the sort of well-educated elders typically used in cognitive-aging studies.  相似文献   
946.
Attending to objects in the world affects how we perceive and remember them. What are the consequences of attending to an object in mind? In particular, how does reporting the features of a recently seen object guide visual learning? In three experiments, observers were presented with abstract shapes in a particular color, orientation, and location. After viewing each object, observers were cued to report one feature from visual short-term memory (VSTM). In a subsequent test, observers were cued to report features of the same objects from visual long-term memory (VLTM). We tested whether reporting a feature from VSTM: (1) enhances VLTM for just that feature (practice-benefit hypothesis), (2) enhances VLTM for all features (object-based hypothesis), or (3) simultaneously enhances VLTM for that feature and suppresses VLTM for unreported features (feature-competition hypothesis). The results provided support for the feature-competition hypothesis, whereby the representation of an object in VLTM was biased towards features reported from VSTM and away from unreported features (Experiment 1). This bias could not be explained by the amount of sensory exposure or response learning (Experiment 2) and was amplified by the reporting of multiple features (Experiment 3). Taken together, these results suggest that selective internal attention induces competitive dynamics among features during visual learning, flexibly tuning object representations to align with prior mnemonic goals.  相似文献   
947.
In this study, based on Family Interactional Theory (FIT), the authors tested a longitudinal model of the intergenerational effects of the grandmothers' parent-child relationships and the grandparents' smoking on the grandchildren's externalizing behavior via parents' psychological symptoms, tobacco use, and child rearing. Using Mplus, the authors obtained a structural equation model that demonstrated generational associations from grandmothers (G1) to parents (G2) to their oldest children (G3) and thus was in accord with FIT. They identified a pathway from the grandmothers' parenting to the grandchildren's externalizing behavior via the parents' psychological symptoms, their smoking, and their child rearing. Parents' psychological symptoms in adolescence were associated with their tobacco use in their late twenties, controlling for the continuity of their psychological symptoms and their tobacco use. This 3-generational model adds to the literature on parent-child relationships (G1), smoking from adolescence to early adulthood (G2), and externalizing behavior in the G3 child.  相似文献   
948.
Whereas socialization influences in early childhood have been linked to children's emerging internalizing problems and prosocial behavior, relatively few studies have examined how NE might moderate such associations in both advantageous and maladaptive ways. Furthermore, more research is needed to evaluate the impact of sibling relationships as an influential socialization influence on these child outcomes. In the current study we examined how NE might differentially moderate the associations between quality of relationships with siblings and both internalizing problems and social skills at school entry. NE moderated the effects of positive and destructive sibling relationship quality on child internalizing problems. Specifically, for boys high on NE, more positive sibling relationship quality predicted fewer internalizing problems, but more destructive sibling conflict predicted more internalizing problems. NE also moderated the effects of destructive sibling conflict on child social skills. For boys high on NE, destructive sibling conflict predicted fewer social skills. Boys high on NE appear to show greater susceptibility to the effects of sibling socialization on child outcomes, relative to boys low on NE. The implications of these interactions are discussed with respect to differential susceptibility theory.  相似文献   
949.
In this 15-year longitudinal study the authors investigated individual and contextual factors that predispose adolescents from a disadvantaged urban area to drug dependence in adulthood. Adolescents were recruited from schools serving East Harlem in New York City. Of the 838 participants followed to adulthood, 59% were women, 55% were African American, and 45% were Puerto Rican. Self-report data were obtained on externalizing and internalizing problems, substance use, and contextual influences across adolescence and young adulthood. Drug dependence was assessed in adulthood. Multivariate logistic regressions of drug dependence were performed on the whole sample and separately by gender. Each of the domains was associated with adult drug dependence. Although mean gender differences were found, most associations of risk factors with drug dependence did not vary significantly by gender. Treating externalizing and internalizing problems, reducing substance use, and providing coping skills for adverse contextual influences in adolescence and young adulthood may reduce the likelihood of becoming drug dependent in adulthood.  相似文献   
950.
This study compared life story memories of emerging adults and early adolescents to other autobiographical memories. Participants described three scenes of their respective life stories, a high point, low point, and turning point narrative, and described the connections between them in a fourth narrative. Participants also related four autobiographical narratives from corresponding time periods for comparison. Narratives were analysed for two measures of causal coherence, narrative complexity and meaning making, and for thematic coherence. Life story narratives contained more self-related lessons and insights and greater recognition of complexity than non-life-story narratives, but these differences were confined to narratives of turning points and connections between events. Thematic connections between narratives were more abstract and self-related in life story narratives. Emerging adults' narratives, when compared to those of early adolescents, showed more evidence of self-related abstract thinking and recognition of multiple dimensions. Findings indicate consistent ways in which life story memories differ from other autobiographic memories, and show evidence of development in adolescence.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号