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   1154篇
  免费   17篇
  1171篇
  2022年   7篇
  2021年   6篇
  2020年   15篇
  2019年   12篇
  2018年   28篇
  2017年   26篇
  2016年   47篇
  2015年   26篇
  2014年   33篇
  2013年   105篇
  2012年   46篇
  2011年   64篇
  2010年   36篇
  2009年   45篇
  2008年   53篇
  2007年   47篇
  2006年   58篇
  2005年   38篇
  2004年   46篇
  2003年   43篇
  2002年   22篇
  2001年   29篇
  2000年   20篇
  1999年   15篇
  1998年   17篇
  1997年   14篇
  1996年   14篇
  1995年   18篇
  1994年   17篇
  1993年   10篇
  1992年   9篇
  1991年   12篇
  1989年   8篇
  1988年   10篇
  1987年   6篇
  1986年   6篇
  1985年   10篇
  1983年   9篇
  1982年   8篇
  1981年   14篇
  1980年   7篇
  1979年   10篇
  1978年   13篇
  1977年   7篇
  1975年   7篇
  1974年   6篇
  1971年   9篇
  1968年   7篇
  1967年   5篇
  1966年   8篇
排序方式: 共有1171条查询结果,搜索用时 15 毫秒
141.
The study examined whether face‐specific perceptual brain mechanisms in 9‐month‐old infants are differentially sensitive to changes in individual facial features (eyes versus mouth) and whether sensitivity to such changes is related to infants' social and communicative skills. Infants viewed photographs of a smiling unfamiliar female face. On 30% of the trials, either the eyes or the mouth of that face were replaced by corresponding parts from a different female. Visual event‐related potentials were recorded to examine face‐sensitive brain responses. Results revealed that increased competence in expressive communication and interpersonal relationships was associated with a more mature response to faces, as reflected in a larger occipito‐temporal N290 with shorter latency. Both eye‐ and mouth changes were detected, though infants derived different information from these features. Eye changes had a greater impact on the face perception mechanisms and were not correlated with social or communication development, whereas mouth changes had a minimal impact on face processing but were associated with levels of language and communication understanding. Copyright © 2009 John Wiley & Sons, Ltd.  相似文献   
142.
    
We propose that there exists an important difference between attainment and maintenance in terms of the goal pursuit strategies for which they call. Specifically, we propose that goal attainment calls for the use of eager approach strategies, whereas goal maintenance calls for the use of vigilant avoidance strategies. We distinguish between attainment versus maintenance as two different goal pursuit conditions on the one hand, and promotion versus prevention focus as two different self‐regulatory concerns on the other hand. We then use insights from Regulatory Fit Theory to make predictions concerning the interactive effects of these two motivational dimensions on outcome valuations. Consistent with our proposal about attainment and maintenance, we found that participants in a promotion focus valued the outcome of an attainment task more than did participants in a prevention focus, whereas the opposite was true for a maintenance task. Implications for maintenance‐related phenomena such as belief perseverance effects are subsequently discussed. Copyright © 2006 John Wiley & Sons, Ltd.  相似文献   
143.
    
Sex ratio is the number of men per 100 reproductive‐age women within a specified mating pool. We generated and tested two hypotheses about the cross‐cultural relationships between sex ratio and mate preferences using preference ratings of 18 characteristics provided by 9809 participants and corresponding sex ratio data secured from an international organization. The Classical Sex Ratio Mate Preference Shifts Hypothesis predicts that in imbalanced sex ratio societies, the more numerous sex will lower their standards, to facilitate acquisition of a partner of the less numerous sex. The Alternative Sex Ratio Mate Preference Shifts Hypothesis predicts that in lower sex ratio societies, men will lower their standards to secure more short‐term matings, whereas women will raise their standards to avoid deception by men seeking short‐term relationships. Results supported the Classical Sex Ratio Mate Preference Shifts Hypothesis for men, and the Alternative Sex Ratio Mate Preference Shifts Hypothesis for women. Discussion addresses limitations of the current research and highlights future directions for research on the relationships between sex ratio and mating psychology and behavior. Copyright © 2006 John Wiley & Sons, Ltd.  相似文献   
144.
Brain damage may doubly dissociate cognitive modules, but the practice of revealing dissociations is predicated on modularity being true (T. Shallice, 1988). This article questions the utility of assuming modularity, as it examines a paradigmatic double dissociation of reading modules. Reading modules illustrate two general problems. First, modularity fails to converge on a fixed set of exclusionary criteria that define pure cases. As a consequence, competing modular theories force perennial quests for purer cases, which simply perpetuates growth in the list of exclusionary criteria. The first problem leads, in part, to the second problem. Modularity fails to converge on a fixed set of pure cases. The second failure perpetuates unending fractionation into more modules.  相似文献   
145.
    
This study examined the effects of noncontingent reinforcement (NCR) with and without extinction on problem behavior and stimulus engagement (consumption of reinforcement) of 4 participants. Reductions in problem behavior using NCR have frequently been attributed to both satiation of the reinforcer and extinction. In the current study, aspects of the NCR treatment effects were difficult to explain based solely on either a satiation or an extinction account. Specifically, it was found that stimulus engagement remained high throughout the NCR treatment analysis, and that problem behavior was reduced to near-zero levels during NCR without extinction. The implications of these findings are discussed with respect to the satiation and extinction hypotheses frequently described in the applied literature. Findings from basic studies examining the effects of response-independent schedules are presented, and are used as the basis for a matching theory account of NCR-related effects. It is proposed that reductions in problem behavior observed during NCR interventions may be a function of the availability of alternative sources of reinforcement.  相似文献   
146.
147.
    
Previous research has documented a tendency for people to make more risk‐seeking decisions for others than for themselves in relationship scenarios. Two experiments investigated whether this self–other difference is moderated by participants' self‐esteem and anxiety levels. In Experiment 1, lower self‐esteem and higher anxiety levels were associated with more risk‐averse choices for personal decisions but not for decisions for others. Therefore, participants with lower self‐esteem/higher anxiety showed greater self–other differences in comparison to participants with higher self‐esteem/lower anxiety levels. Experiment 2 demonstrated that this effect was largely mediated by participants' expectations of success and feelings about potential negative outcomes. These results are discussed in the context of “threats to the self,” with a central role played by anxiety and self‐esteem threats in personal decision making but not in decision making for others. Copyright © 2005 John Wiley & Sons, Ltd.  相似文献   
148.
    
This study examines the influence of item verifiability (non‐verifiable vs. verifiable), context (applicant vs. incumbent), and keying procedure on biodata mean test scores and validity. Concurrent and predictive validation studies were conducted using a sample of 425 call center incumbents and a sample of 410 call center applicants. Although applicants did not obtain significantly higher mean biodata scores, results provide support for the hypothesis that the non‐verifiable biodata composite would be less valid in the applicant context, while the verifiable biodata composite would be equally valid across both the applicant and incumbent contexts. The same pattern of results was obtained using both item‐ and option‐keying procedures. Implications for research and practice are discussed.  相似文献   
149.
    
This article tested a model, informed by the knowledge gap hypothesis, to predict information seeking about cancer immediately following news about the diagnosis or death from cancer of a national celebrity. I identified five celebrity news events and examined their impact using data from the 2005 Health Information National Trends Survey. News coverage about celebrity news events was more likely to promote information seeking among people with greater education than among those with less education. These differences were explained, at least in part, by the fact that highly educated people had greater health knowledge and community involvement than less‐educated people. These factors may contribute to widening socioeconomic gaps in prevention behaviors. I suggest strategies to address these gaps.  相似文献   
150.
    
Laboratory analogues of classroom activities on which children with low working memory skills have been observed to perform very poorly were developed and employed in two studies. In Study 1, 5‐ and 6‐year‐old completed one task involving recalling spoken sentences and counting the numbers of words, and another task involving the identification of rhyming words in spoken poems. Poorer performance of low than average working memory children was obtained on the recall measure of both tasks. In Study 2, 5‐ and 6‐year‐old children heard spoken instructions involving the manipulation of a sequence of objects, and were asked either to perform the instructions or repeat them, in different conditions. The accuracy of performing but not repeating instructions was strongly associated with working memory skills. These results indicate that working memory plays a significant role in typical classroom activities that involve both the storage and mental manipulation of information. Copyright © 2007 John Wiley & Sons, Ltd.  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