全文获取类型
收费全文 | 2549篇 |
免费 | 114篇 |
国内免费 | 1篇 |
专业分类
2664篇 |
出版年
2023年 | 18篇 |
2021年 | 26篇 |
2020年 | 40篇 |
2019年 | 61篇 |
2018年 | 62篇 |
2017年 | 78篇 |
2016年 | 87篇 |
2015年 | 55篇 |
2014年 | 62篇 |
2013年 | 264篇 |
2012年 | 111篇 |
2011年 | 106篇 |
2010年 | 54篇 |
2009年 | 61篇 |
2008年 | 103篇 |
2007年 | 103篇 |
2006年 | 84篇 |
2005年 | 79篇 |
2004年 | 99篇 |
2003年 | 73篇 |
2002年 | 66篇 |
2001年 | 48篇 |
2000年 | 42篇 |
1999年 | 52篇 |
1998年 | 43篇 |
1997年 | 42篇 |
1996年 | 31篇 |
1995年 | 34篇 |
1994年 | 26篇 |
1993年 | 31篇 |
1992年 | 33篇 |
1991年 | 28篇 |
1990年 | 26篇 |
1989年 | 23篇 |
1988年 | 21篇 |
1987年 | 31篇 |
1986年 | 17篇 |
1985年 | 31篇 |
1984年 | 33篇 |
1983年 | 24篇 |
1982年 | 24篇 |
1981年 | 26篇 |
1979年 | 22篇 |
1978年 | 26篇 |
1976年 | 19篇 |
1975年 | 25篇 |
1974年 | 21篇 |
1973年 | 22篇 |
1972年 | 20篇 |
1971年 | 22篇 |
排序方式: 共有2664条查询结果,搜索用时 0 毫秒
891.
Theodore E. Hoffman Kathleen M. Byrne Kristine L. Belnap Margaret S. Steward 《International journal of group psychotherapy》2013,63(1):83-98
AbstractBonding is an ongoing aspect of intersubjective experience, a type of mental relationship to oneself and others. As a behavioral mode, bonding utilizes verbal and nonverbal communication primarily to establish a basic feeling of connection between individuals. Bonding is the floor, a cognitive-affective state that precedes and prepares the way for the complex processes underlying identification. The concept relates to Bion’s early theory of basic assumptions, and takes on new and different meanings according to his later ideas regarding social communication. Bonding is also a therapeutic posture or technique, an element in the establishment of group cohesion, the positive transference, and therapeutic and group alliance. Case examples illustrate how the therapist and other group members bring a complex of bonding needs and anxieties that must be negotiated to establish and maintain bonding, which is a necessary condition for successful therapeutic work. 相似文献
892.
Relations between children’s imaginary companion status and their engagement in private speech during free play were investigated in a socially diverse sample of 5-year-olds (N = 148). Controlling for socioeconomic status, receptive verbal ability, total number of utterances, and duration of observation, there was a main effect of imaginary companion status on type of private speech. Children who had imaginary companions were more likely to engage in covert private speech compared with their peers who did not have imaginary companions. These results suggest that the private speech of children with imaginary companions is more internalized than that of their peers who do not have imaginary companions and that social engagement with imaginary beings may fulfill a similar role to social engagement with real-life partners in the developmental progression of private speech. 相似文献
893.
The aim of the study is to examine whether the playing of driving games and the viewing of music videos during adolescence predict crash involvement in emerging adulthood. A prospective cohort study (N = 471) with a five-year interval was used to measure adolescents' gender, media use, personality characteristics (baseline measurement), and crash involvement (follow-up). At baseline measurement (2006), respondents were 17 or 18 years old and did not yet have their driver's license. Data were analyzed by means of logistic regression analyses and the calculation of attributable risks. Respondents who watched music videos at least several times a week (OR = 4.319) or respondents who played drive'em up games at least a few times a month (OR = 3.125) had a heightened chance of being involved in a car crash five years later, even after controlling for their total media exposure, gender, and personality characteristics. Implications for prevention are discussed. 相似文献
894.
David M. Sobel Jin Li Kathleen H. Corriveau 《Journal of cognition and development》2013,14(3):345-369
Two studies examined how 3–6-year-olds understand the process of learning. In study 1 examined how children spontaneously talk about learning via a CHILDES language analysis. Talk about the learning process increased between the ages of 3–5. Talk specifically about learning in terms of desire decreased during this period. This suggests the possibility that desire is important to children's initial understanding of learning, and children develop an understanding that various mental states including desire, attention, and intention, play a role in the learning process. In Study 2, we presented 4- and 6-year-olds with a set of stories designed to test their understanding of the role of these mental states. In both their judgments about whether someone learns and their justifications of their responses, younger children relied more on the character's desires whereas older children were more likely to integrate desire, attention, and intention together. These data suggest that children's understanding of the process of learning is developing during the early elementary school years. 相似文献
895.
Kathleen N. Kannass John Colombo Nancy Wyss 《Journal of cognition and development》2013,14(4):509-532
We investigated the effects of instructions to “stay on task” on preschoolers' attention and cognitive performance in the face of either incomprehensible or comprehensible distraction. Three- and 4-year-olds completed problem-solving tasks while a distracting event played continuously in the background under conditions of a) no instruction, b) moderate instruction, or c) frequent instruction to “stay on task.” Under conditions where an incomprehensible distractor was present, any amount of instruction reduced looking to the distracting event. Under conditions where a comprehensible distractor was present, however, frequent instruction was the most effective in increasing looking to the task and decreasing looking to the distracting event. 相似文献
896.
We investigated the effects of different amounts of distraction on preschoolers’ task performance and attention. Children 3.5 and 4 years of age completed problem-solving tasks in one of three conditions: no distraction, intermittent (periodic) distraction, or continuous distraction. The results revealed differential effects of the distractors at the different ages. The younger group was susceptible to any kind of distraction; task performance and attention were equally impaired during both distraction conditions. The older group was less susceptible to external distraction, with task performance and attention most impaired in the continuous distraction condition. The results are discussed in terms of the relevance of the amount of competition for attentional focus present in distractors and the development of executive functions in early childhood. 相似文献
897.
Kathleen Albertson 《Journal of cognition and development》2013,14(4):390-410
Preschoolers' recall of the true and pretend identities of an object in pretense was examined along with a battery of executive functioning and working memory tasks. We expected that children would retain separate identities, as well as a link between them, after observing episodes of pretense, and that memory for pretense would be related to executive functioning and working memory. Children (aged 37–59 months) recalled the true identity of an object better than its pretend identity. Children's recall of at least one identity was correlated with executive functioning and “dual” working memory tasks, independent of age and verbal ability. Memory for both identities was only correlated with executive functioning. The findings are generally supportive of the claim that children form separate representations of the true and pretend identities of objects. The results extend findings of well-established relations between false belief tasks and executive functioning and working memory. 相似文献
898.
John K. Davis 《The American journal of bioethics : AJOB》2013,13(4):W6-W8
Life-extension was the focus for the 10th annual Congress of the International Association of Biomedical Gerontology, held last September at Cambridge University. This scientific convention included a panel of several bioethicists, including Art Caplan, John Harris, and others. The presentations on the ethics of life-extension are reviewed here. 相似文献
899.
Event‐related potential differences in children supplemented with long‐chain polyunsaturated fatty acids during infancy 下载免费PDF全文
Ke Liao Bruce D. McCandliss Susan E. Carlson John Colombo D. Jill Shaddy Elizabeth H. Kerling Rebecca J. Lepping Wichian Sittiprapaporn Carol L. Cheatham Kathleen M. Gustafson 《Developmental science》2017,20(5)
Long‐chain polyunsaturated fatty acids (LCPUFA) have been shown to be necessary for early retinal and brain development, but long‐term cognitive benefits of LCPUFA in infancy have not been definitively established. The present study sought to determine whether LCPUFA supplementation during the first year of life would result in group differences in behavior and event‐related potentials (ERPs) while performing a task requiring response inhibition (Go/No‐Go) at 5.5 years of age. As newborns, 69 children were randomly assigned to infant formulas containing either no LCPUFA (control) or formula with 0.64% of total fatty acids as arachidonic acid (ARA; 20:4n6) and various concentrations of docosahexaenoic acid (DHA; 22:6n3) (0.32%, 0.64% or 0.96%) for the first 12 months of life. At 5.5 years of age, a task designed to test the ability to inhibit a prepotent response (Go/No‐Go) was administered, yielding both event‐related potentials (ERPs) and behavioral data. Behavioral measures did not differ between groups, although reaction times of supplemented children were marginally faster. Unsupplemented children had lower P2 amplitude than supplemented children to both Go and No‐Go conditions. N2 amplitude was significantly higher on No‐Go trials than Go trials, but only for supplemented children, resulting in a significant Group × Condition interaction. Topographical analysis of the ERPs revealed that the LCPUFA‐supplemented group developed a novel period of synchronous activation (microstate) involving wider anterior brain activation around 200 ms; this microstate was not present in controls. These findings suggest that LCPUFA supplementation during the first 12 months of life exerts a developmental programming effect that is manifest in brain electrophysiology. A video abstract of this article can be viewed at: https://www.youtube.com/watch?v=oM2leg4sevs . 相似文献
900.
The landscape of sport shows conspicuous discursive and material disparities between the responses to openly violent on-field transgressors and the responses to other kinds of transgressor, most notably drug users. The former gets off significantly lighter in terms of ideological framing and formal punishment. The latter—and drug users in particular—are typically demonised and heavily punished, whilst the former are regularly lionised, dramatised, celebrated and punished less severely. The preceding disparities cannot be upheld from the standpoint of morality in general or from that of a Broad Internalist sport ethic. Consideration of the consequences, actions, motives and vices involved in the respective categories fails to support them. Nor is support provided by the notion that sports are tests of the physical skills and virtues that the obstacles presented are designed to foster and promote, and behaviour that threatens the opportunity to exercise those excellences or have competitions determined by them should be the subject of critical moral scrutiny. Openly violent on-field transgression does not fare at all well by the yardstick of Broad Internalism. Robust investigation of and ultimate change in the values underpinning the disparities is warranted. 相似文献