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581.
The manifestation of alcohol dependence at different developmental stages may be associated with different genetic and environmental factors. Taking a developmental approach, we characterized interaction between the dopamine receptor 4 variable number tandem repeat (DRD4 VNTR) polymorphism and developmentally specific environmental factors (childhood adversity, college/Greek organization involvement, and delayed adult role transition) on alcohol dependence during emerging and young adulthood. Prospective data were obtained from a cohort of 234 White individuals (56% women, 44% men) who were followed up at ages 18 through 34. A longitudinal hierarchical factor model was estimated to model a traitlike persistent alcohol dependence factor throughout emerging and young adulthood and 2 residual statelike alcohol dependence factors limited to emerging adulthood and young adulthood, respectively. We accounted for those alcohol dependence factors by modeling 3 two-way interaction effects between the DRD4 VNTR polymorphism and the 3 developmentally specific environment factors. Carriers of the DRD4 long allele showed greater susceptibility to environmental effects; they showed more persistent symptoms of alcohol dependence as childhood adversity increased and more alcohol dependence symptoms limited to emerging adulthood as college/Greek organization involvement increased. Alcohol dependence among noncarriers of the long allele, however, did not differ as a function of those environments. Although replication is necessary, these findings highlight the importance of repeated phenotypic assessments across development and modeling both distal and proximal environments and their interaction with genetic susceptibility at specific developmental stages. 相似文献
582.
Correll J Wittenbrink B Park B Judd CM Goyle A 《Journal of experimental social psychology》2011,47(1):184-189
Research shows that participants shoot armed Blacks more frequently and quickly than armed Whites, but make don't-shoot responses more frequently and quickly for unarmed Whites than unarmed Blacks. We argue that this bias reflects the perception of threat — specifically, threat associated with Black males. Other danger cues (not just race) may create a similar predisposition to shoot, and if these cues promote shooting when the target is White, they should attenuate racial bias. We embedded targets in threatening and safe backgrounds. Racial bias was evident in safe contexts but disappeared when context signaled danger, and this reduction was largely due to an increased tendency to shoot White targets. 相似文献
583.
Park N 《The American psychologist》2011,66(1):65-72
Throughout history, military children and families have shown great capacity for adaptation and resilience. However, in recent years, unprecedented lengthy and multiple combat deployments of service members have posed multiple challenges for U.S. military children and families. Despite needs to better understand the impact of deployment on military children and families and to provide proper support for them, rigorous research is lacking. Programs exist that are intended to help, but their effectiveness is largely unknown. They need to be better coordinated and delivered at the level of individuals, families, and communities. Research and programs need to take a comprehensive approach that is strengths based and problem focused. Programs for military children and families often focus on the prevention or reduction of problems. It is just as important to recognize their assets and to promote them. This article reviews existing research on military children and families, with attention to their strengths as well as their challenges. Issues in need of further research are identified, especially research into programs that assist military children and families. Military children and families deserve greater attention from psychology. 相似文献
584.
Elaine Howard Ecklund Jerry Z. Park Katherine L. Sorrell 《Journal for the scientific study of religion》2011,50(3):552-569
Analysis of interviews with 275 natural and social scientists at 21 elite U.S. research universities suggests that only a minority of scientists see religion and science as always in conflict. Scientists selectively employ different cultural strategies with regards to the religion‐science relationship: redefining categories (the use of institutional resources from religion and from science), integration models (scientists strategically employ the views of major scientific actors to legitimate a more symbiotic relationship between science and religion), and intentional talk (scientists actively engage in discussions about the boundaries between science and religion). Such results challenge narrow conceptions of secularization theory and the sociology of science literature by describing ways science intersects with other knowledge categories. Most broadly the ways that institutions and ideologies shape one another through the agency of individual actors within those institutions is explored. 相似文献
585.
Working memory (WM) impairment is a core feature of schizophrenia, but the contributions of different WM components are not yet specified. Here, we investigated the potential role of inefficient encoding in reduced WM performance in patients with schizophrenia (PSZ). Twenty-eight PSZ, 16 patients with bipolar disorder (PBP), 16 unaffected and unmedicated relatives of PSZ (REL), and 29 demographically matched healthy controls (HC) performed a spatial delayed response task with either low or high WM demands. The demands on attentional selection were also manipulated by presenting distractor stimuli during encoding in some of the trials. After each trial, participants rated their level of response confidence. This allowed us to analyze different types of WM responses. WM was severely impaired in PSZ compared to HC; this reduction was mainly due to an increase in the amount of false memory responses (incorrect responses that were given with high confidence) rather than an increase in the amount of incorrect and not-confident responses. Although PBP showed WM impairments, they did not have increased false memory errors. In contrast, reduced WM in REL was also accompanied by an increase in false memory errors. The presentation of distractors led to a decline in WM performance, which was comparable across groups indicating that attentional selection was intact in PSZ. These findings suggest that inefficient WM encoding is responsible for impaired WM in schizophrenia and point to differential mechanisms underlying WM impairments in PSZ and PBP. (PsycINFO Database Record (c) 2012 APA, all rights reserved). 相似文献
586.
Oscar Ybarra Hyekyung Park Christine Stanik David Seungjae Lee 《European journal of social psychology》2012,42(2):200-209
Social acceptance and the development of one's competencies and status are fundamental aspects of the human experience, but the former (communion) should take precedence over the latter (agency) in self‐judgment. Study 1 results indicated that (i) people across two cultures judged themselves as possessing higher communion than agency characteristics; (ii) communion self‐judgments were more consistent across temporal perspective; and (iii) level of self‐enhancement across cultures was similar for communion but different for agency. In Study 2, people across culture reported being more troubled and demonstrated a greater desire to repair their reputation when they imagined others perceived them as lacking in communion compared with agency. These findings support the idea that social life pressures people to view themselves as possessing communion traits and to ensure that others have this perception as well. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
587.
JG Hong DH Kim CH Lee SJ Park JM Kim M Cai DS Jang JH Ryu 《Neurobiology of learning and memory》2012,98(2):122-129
Several molecules were recently found to be important for the memory retrieval process in the hippocampus; however, the mechanisms underlying the memory retrieval remain poorly understood. GSK-3β has been implicated in the control of synaptic plasticity and memory formation. Here, we investigated the relationship between hippocampal GSK-3β activity and memory retrieval using behavioral and Western blotting methods. We found that GSK-3β was activated in the hippocampus after a retention session in the passive avoidance task. An intrahippocampal injection of the GSK-3β inhibitor, SB 216763, before the retention session blocked memory retrieval (but not reconsolidation) without affecting locomotor activity. These results suggest that GSK-3β activation would be essential for memory retrieval in the hippocampus. 相似文献
588.
A series of studies investigating cultural differences in apology usage in unsolicited email advertising messages (i.e., SPAM) are reported. Study 1 documented that in comparison to American SPAM, a greater percentage of Korean SPAM included apologies. The next five studies (Ns= 516, 3132, 662, 524, 536) tested various explanations for cross‐cultural differences in uses of, and responses to, apologies. Findings indicated that advertising messages containing apologies were not necessarily more effective than advertising messages without apologies. Koreans, however, considered advertising messages with apologies as more credible and normal and exhibited a greater tendency to model other people's apology use than did Americans. Thus, the frequent presence of apologies in Korean unsolicited email advertising is likely to be based on Koreans' modeling behavior (i.e., a greater tendency to follow social norms). 相似文献
589.
Woosuk Park 《Synthese》2016,193(11):3701-3712
590.
A Critical Assessment of Null Hypothesis Significance Testing in Quantitative Communication Research
Timothy R. Levine René Weber Craig Hullett Hee Sun Park Lisa L. Massi Lindsey 《人类交流研究》2008,34(2):171-187
Null hypothesis significance testing (NHST) is the most widely accepted and frequently used approach to statistical inference in quantitative communication research. NHST, however, is highly controversial, and several serious problems with the approach have been identified. This paper reviews NHST and the controversy surrounding it. Commonly recognized problems include a sensitivity to sample size, the null is usually literally false, unacceptable Type II error rates, and misunderstanding and abuse. Problems associated with the conditional nature of NHST and the failure to distinguish statistical hypotheses from substantive hypotheses are emphasized. Recommended solutions and alternatives are addressed in a companion article. 相似文献