全文获取类型
收费全文 | 1161篇 |
免费 | 34篇 |
出版年
2019年 | 21篇 |
2018年 | 22篇 |
2017年 | 23篇 |
2016年 | 23篇 |
2015年 | 15篇 |
2014年 | 21篇 |
2013年 | 142篇 |
2012年 | 38篇 |
2011年 | 41篇 |
2010年 | 20篇 |
2009年 | 18篇 |
2008年 | 21篇 |
2007年 | 42篇 |
2006年 | 32篇 |
2005年 | 26篇 |
2004年 | 23篇 |
2003年 | 28篇 |
2002年 | 29篇 |
2001年 | 51篇 |
2000年 | 45篇 |
1999年 | 44篇 |
1998年 | 20篇 |
1997年 | 11篇 |
1995年 | 11篇 |
1994年 | 7篇 |
1993年 | 12篇 |
1992年 | 12篇 |
1991年 | 24篇 |
1990年 | 27篇 |
1989年 | 17篇 |
1988年 | 13篇 |
1987年 | 16篇 |
1986年 | 18篇 |
1985年 | 18篇 |
1984年 | 8篇 |
1983年 | 11篇 |
1982年 | 12篇 |
1980年 | 8篇 |
1979年 | 9篇 |
1978年 | 14篇 |
1976年 | 12篇 |
1975年 | 13篇 |
1974年 | 7篇 |
1973年 | 15篇 |
1972年 | 11篇 |
1970年 | 13篇 |
1969年 | 11篇 |
1968年 | 14篇 |
1967年 | 10篇 |
1966年 | 7篇 |
排序方式: 共有1195条查询结果,搜索用时 15 毫秒
301.
This study explores the relation of white matter disorder (WMD) to intralimb coordination patterns in premature infants with very low birth weight (VLBW). We specifically measured the temporal-spatial characteristics of intralimb coordination patterns of the legs. Three groups of infants were compared at one month corrected age (CA): 10 premature infants born VLBW and WMD (PTWMD), 10 premature infants born VLBW without WMD (PT) and 10 full term infants (FT). Using kinematic variables, we discriminate among VLBW infants with WMD from the two comparison groups. Infants born with WMD maintain patterns of tight coupling among leg joints (all flexion or all extension) while PT and FT term infants have begun to decouple leg joints by this age (combinations of flexion with extension). The coupling pattern is captured through joint correlations, discrete relative phase, and phase plane portraits. The PTWMD infants also demonstrate aberrant patterns of coordination evident through both temporal and spatial characteristics of the kicks. This is the first evidence that movement disorder associated with brain lesions can be identified and quantified with kinematic variables as early as one month of age. 相似文献
302.
Two studies examine complementarity (vs. mimicry) of dominant and submissive nonverbal behaviors. In the first study, participants interacted with a confederate who displayed either dominance (through postural expansion) or submission (through postural constriction). On average, participants exposed to a dominant confederate decreased their postural stance, whereas participants exposed to a submissive confederate increased their stance. Further, participants with complementing responses (dominance in response to submission and submission in response to dominance) liked their partner more and were more comfortable than those who mimicked. In the second study, complementarity and mimicry were manipulated, and complementarity resulted in more liking and comfort than mimicry. The findings speak to the likelihood of hierarchical differentiation. 相似文献
303.
Hambrick DZ 《Memory & cognition》2003,31(6):902-917
The purpose of this study was to investigate correlates of knowledge acquisition within a real-world domain-basketball. The study employed a longitudinal design and involved two sessions, with approximately 2.5 months between sessions. Session 1 occurred near the beginning of the men's college basketball season, and Session 2 occurred after the season. There was an indirect effect of interest in basketball on new basketball knowledge, via exposure to domain-relevant information. In addition, prior basketball knowledge had a strong effect on new basketball knowledge distinct from an influence through basketball exposure. This finding suggests that prior knowledge may provide a framework into which new knowledge can be integrated. By contrast, there was no effect of fluid intelligence on new basketball knowledge. Although somewhat surprising given evidence that this aspect of intelligence may play a role in the acquisition of certain types of knowledge, this finding accords with the view that knowledge is a major determinant of various aspects of cognitive functioning, including learning. 相似文献
304.
A survey of 142 Puerto Rican women living with HIV/AIDS in New York City revealed high Centers for Epidemiological Studies Depression (CES-D) scores, with 66% of the sample scoring above the conventional threshold of possible clinical depression. Most respondents (71%) were Catholic, 29% considered themselves members of a church or other place of worship, and 30% reported attending religious services 1-3 times a month. As predicted, spirituality was high and negatively associated with CES-D scores. A series of simultaneous multiple regression analyses controlling for all potentially confounding medical and sociodemographic variables demonstrated that both mastery and self-esteem scores mediated this relationship. Implications for future research and the provision of services to HIV-positive Puerto Rican women are discussed. 相似文献
305.
People have knowledge about relationships (i.e., relational schemas) that is based on their experiences. Because most people have experience with complementary behavior (interaction partners behaving similarly in terms of affiliation but oppositely in terms of control), they expect complementary behavior in their relationships. Like other beliefs about relationships, expectations of complementarity affect self-construal. The authors provide evidence for complementary self-construal; people assimilate to relevant relationship partners on the affiliation dimension and contrast on the control dimension. Consistent with the proposed role of relationship knowledge in these effects, complementary self-construal was moderated by the familiarity of the target, whether people focused on their relationship with or the appearance of the target, and whether the context was relevant for the interpersonal dimension. 相似文献
306.
The revised hierarchical model (RHM) of bilingual language processing posits independent word form representations for the dominant language (L1) and the nondominant language (L2), facilitated translation from L2 words to L1 words, access to common concepts for L1 and L2, and stronger activation of concepts for L1 than for L2. Spanish-English and English-Spanish bilinguals brainstormed for two sessions; half switched languages (L1-L2 or L2-L1) and half stayed in the same language (L1-L1 or L2-L2) across sessions. In both sessions, L1 brainstorming resulted in more efficient idea productivity than L2 brainstorming, supporting stronger concept activation for L1, consistent with the RHM. Switching languages from L2 to L1 resulted in the most efficient idea productivity in Session 2, suggesting that switching to L1 not only permits strong concept activation, but also the activation of concepts that are relatively different than those activated by L2, inconsistent with the RHM. Switching languages increased the proportion of Session 1 ideas repeated during Session 2, despite instructions not to repeat. This finding suggests that there is activation of concepts as well as word forms in same language brainstorming and that this dual activation aids in following instructions not to repeat, consistent with the RHM. It is suggested that the RHM be re-specified to accommodate the notion that L1 and L2 access relatively different concepts. 相似文献
307.
Reactions to a black professional: motivated inhibition and activation of conflicting stereotypes 总被引:4,自引:0,他引:4
The motivation to form a particular impression of an individual can prompt the inhibition of applicable stereotypes that contradict one's desired impression and the activation and application of stereotypes that support it. Participants, especially those high in prejudice, inhibited the Black stereotype when motivated to esteem a Black individual (because he had praised them). Participants motivated to esteem a Black doctor also activated the doctor stereotype. In contrast, participants motivated to disparage a Black doctor (because he had criticized them) inhibited the doctor stereotype. Participants motivated to disparage a Black individual also applied the Black stereotype to him, rating him as relatively incompetent. All these effects were driven by the self-protective motives of recipients of feedback from Black evaluators; detached observers showed no such effects. 相似文献
308.
Hojat M Shapurian R Nayerahmadi H Farzaneh M Foroughi D Parsi M Azizi M 《The Journal of psychology》1999,133(1):19-31
Sexual, child rearing, and family attitudes of 160 Iranian immigrants in the United States (61 men, 99 women) and 97 Iranians (55 men, 42 women) in Iran were compared. Iranians in the United States in general, and women in particular, compared with their counterparts in Iran, expressed more permissive attitudes toward premarital sex and sex education, more tolerance toward homosexuality, and a greater acceptance of marital dissolution. Iranians in both countries assigned a high value to the maternal role and to family loyalty but did not endorse unrestricted freedom for youngsters. Influences of attitudinal disparity on interpersonal and family relationships are discussed, and implications for marriage counseling and family therapy are suggested. 相似文献
309.
Child psychopathology risk factors for drug abuse: overview. 总被引:3,自引:0,他引:3
Introduces the special section on Child Psychopathology Risk Factors for Substance Use Disorders. This article summarizes important principles, the current literature, contributions to this section, and issues for future research. Psychopathological conditions are strongly associated with substance use disorders, and some childhood psychopathological conditions may constitute precursors to this comorbidity. Conduct disorder constitutes a strong risk factor for substance use disorders, and bipolar disorder, although more rare, may also constitute a significant risk. Data for other child psychiatric conditions are mixed or lacking; however, important subgroups may be at risk and merit further attention. Underlying characteristics, such as temperament and self-regulation, merit further study as possible explanatory variables. Such studies hold the key for targeting and improving preventive and therapeutic interventions. 相似文献
310.
A theory of implicit and explicit knowledge 总被引:11,自引:0,他引:11
The implicit-explicit distinction is applied to knowledge representations. Knowledge is taken to be an attitude towards a proposition which is true. The proposition itself predicates a property to some entity. A number of ways in which knowledge can be implicit or explicit emerge. If a higher aspect is known explicitly then each lower one must also be known explicitly. This partial hierarchy reduces the number of ways in which knowledge can be explicit. In the most important type of implicit knowledge, representations merely reflect the property of objects or events without predicating them of any particular entity. The clearest cases of explicit knowledge of a fact are representations of one's own attitude of knowing that fact. These distinctions are discussed in their relationship to similar distinctions such as procedural-declarative, conscious-unconscious, verbalizable-nonverbalizable, direct-indirect tests, and automatic-voluntary control. This is followed by an outline of how these distinctions can be used to integrate and relate the often divergent uses of the implicit-explicit distinction in different research areas. We illustrate this for visual perception, memory, cognitive development, and artificial grammar learning. 相似文献