全文获取类型
收费全文 | 2123篇 |
免费 | 95篇 |
专业分类
2218篇 |
出版年
2023年 | 9篇 |
2022年 | 11篇 |
2021年 | 24篇 |
2020年 | 36篇 |
2019年 | 52篇 |
2018年 | 68篇 |
2017年 | 65篇 |
2016年 | 67篇 |
2015年 | 70篇 |
2014年 | 58篇 |
2013年 | 239篇 |
2012年 | 86篇 |
2011年 | 104篇 |
2010年 | 79篇 |
2009年 | 66篇 |
2008年 | 98篇 |
2007年 | 86篇 |
2006年 | 80篇 |
2005年 | 86篇 |
2004年 | 92篇 |
2003年 | 83篇 |
2002年 | 85篇 |
2001年 | 38篇 |
2000年 | 30篇 |
1999年 | 35篇 |
1998年 | 38篇 |
1997年 | 43篇 |
1996年 | 24篇 |
1995年 | 17篇 |
1994年 | 28篇 |
1993年 | 33篇 |
1992年 | 12篇 |
1991年 | 15篇 |
1990年 | 16篇 |
1989年 | 18篇 |
1988年 | 12篇 |
1987年 | 16篇 |
1986年 | 19篇 |
1985年 | 24篇 |
1984年 | 21篇 |
1983年 | 19篇 |
1982年 | 12篇 |
1981年 | 16篇 |
1980年 | 20篇 |
1979年 | 7篇 |
1978年 | 9篇 |
1977年 | 12篇 |
1976年 | 6篇 |
1975年 | 5篇 |
1950年 | 5篇 |
排序方式: 共有2218条查询结果,搜索用时 9 毫秒
991.
Robert B. McCall Christina J. Groark Larry Fish Diane Harkins Gabriela Serrano Karen Gordon 《Infant mental health journal》2010,31(5):521-542
A pilot intervention that emphasized training and technical assistance to promote warm, sensitive, and responsive one‐on‐one caregiver–child interactions primarily during feeding and bathing/changing was implemented using regular staff in a depressed orphanage for children birth to approximately 8 years of age in Latin America. Despite a variety of unanticipated irregularities in the implementation of the intervention, many beyond the researchers' control, ward environments improved; caregivers displayed more warm, sensitive, and responsive interactions with children; and children improved an average of 13.5 developmental quotient (DQ) points after 4+ months' exposure to the completed intervention. Furthermore, 82% of the children had DQs greater than 70 before the intervention, but only 27.8% did so afterward. Although the training for all caregivers was aimed at children birth to 3 years, the number of different caregivers was reduced, and technical assistance was provided only to caregivers serving children less than 3 years, younger and older children (3–8 years) improved approximately the same amount. However, children who were transitioned from a younger to an older ward during the intervention improved less than did children who remained in either a younger or an older ward, the first evidence suggesting that the common orphanage practice of periodically graduating children from one homogeneous age group to another may impede their development. The study is consistent with others that have shown that orphanages can be changed, and increases primarily in warm, sensitive, responsive caregiver–child interactions can produce improvements in children's development. 相似文献
992.
Facial expressions are a basic form of non-verbal communication that convey important social information to others. The relevancy of this information is highlighted by findings that backward masked facial expressions facilitate spatial attention. This attention effect appears to be mediated through a neural network consisting of the amygdala, anterior cingulate, and visual cortex. However, a direct investigation of the neural time course associated with orienting to such stimuli has yet to be performed. In the current investigation, a backward masked fearful face dot-probe task was performed while ERPs were recorded. Reaction time results suggest that spatial attention is captured by backward masked fearful faces and attention is focused at the location of the fear stimulus. Masked right visual field fearful faces enhanced the N170 amplitudes of contralateral occipito-temporal electrodes. The rapid contralateral N170 enhancement was positively correlated with participants’ behavioral index of spatial attention. Thus, backward masked fearful face-elicited spatial attention facilitates behavior and modulates the early stage of facial processing reflected by the N170. 相似文献
993.
Participants have difficulty in reporting the second of two masked targets if the second target is presented within 500 ms
of the first target—an attentional blink (AB). Individual participants differ in the magnitude of their AB. The present study
employed an individual differences design and two visual working memory tasks to examine whether visual working memory capacity
and/or the ability to exclude irrelevant information from visual working memory (working memory filtering efficiency) could
predict individual differences in the AB. Visual working memory capacity was positively related to filtering efficiency, but
did not predict AB magnitude. However, the degree to which irrelevant stimuli were admitted into visual working memory (i.e.,
poor filtering efficiency) was positively correlated with AB magnitude over and above visual working memory capacity. Good
filtering efficiency may benefit the AB by not allowing irrelevant RSVP distractors to gain access to working memory. 相似文献
994.
Perroud N Uher R Dieben K Nicastro R Huguelet P 《Journal of personality disorders》2010,24(5):634-650
The purpose of this study was to examine the effectiveness, and predictors of response and drop-out during a four-week course of intensive dialectical behavior therapy (I-DBT) in 447 outpatients suffering from borderline personality disorder (BPD), over a 10-year period. Assessments included a diagnostic interview, the International Personality Disorder Examination Screening Questionnaire, the Beck Depression Inventory, and the Beck Hopelessness Scale. Among these participants, 103 started a second course of treatment. In agreement with previous reports, I-DBT was effective in reducing levels of depression and hopelessness with a trend of increasing effectiveness over the study period. High schizoid scores and low narcissistic score predicted poor response. Treatment completion rate was high, and low education predicted dropout. A discussion on the usefulness of a second course of treatment should be held with patients and staff as it was not effective in reducing depression and hopelessness. 相似文献
995.
Joyce Rupert Karen A. Jehn Marloes L. van Engen Renée S. M. de Reuver 《Journal of business and psychology》2010,25(1):25-37
Purpose
In this study, we investigated the commitment of cultural minorities and majorities in organizations. We examined how contextual factors, such as pressure to conform and leadership styles, affect the commitment of minority and majority members. 相似文献996.
Karen Nieuwenhuijsen Jos H. A. M. Verbeek Angela G. E. M. de Boer Roland W. B. Blonk Frank J. H. van Dijk 《Journal of Rational-Emotive & Cognitive-Behavior Therapy》2010,28(2):57-72
It remains unclear if patients with different types of common mental disorders, such as adjustment, anxiety and depressive
disorders, have the same irrational ideas. The aim of this prospective cohort study (n = 190) is to investigate differences in level and type of irrational beliefs among these groups and to examine whether a
change in irrational beliefs is related to symptom recovery. Irrational beliefs (IBI) and symptoms were measured at four points
in time: at baseline, after 3, 6 and 12 months. Results showed that diagnostic groups differed in their level of irrational
beliefs and this effect remained over time. Highest levels of irrationality were observed in the double diagnosis group, followed
by the anxiety disorder group and the depression group. Participants with adjustment disorders showed the lowest levels of
irrationality, comparable to a community sample. We did not find differences in the type of irrational beliefs between diagnostic
groups. The level of irrationality declined over time for all diagnostic groups. No differences in decrease were observed
between diagnostic groups. The magnitude and direction of change in irrational beliefs were related to the magnitude of recovery
of depressive, anxiety and stress symptoms over time. These results support the application of general cognitive interventions,
especially for patients with a depressive or an anxiety disorder. 相似文献
997.
Accuracy for a second target is reduced when it is presented within 500 msec of a first target. This phenomenon is called
the attentional blink (AB). A diffused attentional state (via positive affect or an additional task) has been shown to reduce the AB, whereas a
focused attentional state (via negative affect) has been shown to increase the AB, purportedly by influencing the amount of
attentional investment and flexibility. In the present study, individual differences in personality traits related to positive
affect, negative affect, and cognitive flexibility were used to predict individual differences in AB magnitude. As hypothesized,
greater extraversion and openness predicted smaller ABs. Greater openness also predicted higher overall target accuracy. Greater
neuroticism predicted larger ABs and lower overall target accuracy. Conscientiousness, associated with less cognitive flexibility,
predicted lower overall target accuracy. Personality may modulate the AB by influencing overinvestment via dispositional tendencies
toward more or less stringent or capable cognitive control. 相似文献
998.
Thomas Sanocki Karen Goldman Jennifer Waltz Cameron Cook William Epstein Gregg C. Oden 《Memory & cognition》1985,13(2):145-157
In general, studies on the effects of a sentence context on word identification have focused on how context affects the efficiency of processing a single target word, presented separately from the context. Such studies probably would be incapable of measuring contextual facilitation resulting from cascaded or parallel processing of neighboring words within a sentence. To measure these and other types of facilitation, we presented entire phrases and sentences for subjects to read as fast as possible and to monitor for nonwords. Subjects read at rates representative of natural reading. Experiment 1 demonstrated a large contextual facilitation effect on decision time. Experiment 2 showed that facilitation is caused by specific semantic information and, perhaps to a greater degree, by nonpredictive syntactic information. Experiment 3 showed that the amount of facilitation is greater than could be accounted for by separate contributions from autonomous word level and sentence level processes. These results present difficulties for an autonomous model of reading, but are consistent with interactive models, in which the results of ongoing sentential analyses are combined with stimulus information to identify words. 相似文献
999.
Nannette Evans Commander Yali Zhao Hongli Li Karen M. Zabrucky Lin-Miao L. Agler 《Current psychology (New Brunswick, N.J.)》2014,33(4):655-671
In the present study we examined the ability of American and Chinese undergraduate students to calibrate their understanding of textbook passages translated into their native languages. Students read a series of texts and made predictions of their understanding of each text as well as the number of questions they would be able to answer correctly. Students also made postdictions of their test performance. Chinese students were significantly better than American students in calibrating their understanding of passages and predicting how many comprehension items they would answer correctly. Chinese students also outperformed American students on comprehension tests. All students were able to make more accurate postdictions of comprehension test scores than predictions. Results are related to possible instructional differences between American and Chinese students. Several possible directions for future research are discussed. 相似文献
1000.
Katie Witkiewitz Kevin King Robert J. McMahon Johnny Wu Jeremy Luk Karen L. Bierman John D. Coie Kenneth A. Dodge Mark T. Greenberg John E. Lochman Ellen E. Pinderhughes 《Journal of abnormal child psychology》2013,41(2):223-237
Strong associations between conduct disorder (CD), antisocial personality disorder (ASPD) and substance use disorders (SUD) seem to reflect a general vulnerability to externalizing behaviors. Recent studies have characterized this vulnerability on a continuous scale, rather than as distinct categories, suggesting that the revision of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) take into account the underlying continuum of externalizing behaviors. However, most of this research has not included measures of disorders that appear in childhood [e.g., attention-deficit/hyperactivity disorder (ADHD) or oppositional defiant disorder (ODD)], nor has it considered the full range of possibilities for the latent structure of externalizing behaviors, particularly factor mixture models, which allow for a latent factor to have both continuous and categorical dimensions. Finally, the majority of prior studies have not tested multidimensional models. Using lifetime diagnoses of externalizing disorders from participants in the Fast Track Project (n?=?715), we analyzed a series of latent variable models ranging from fully continuous factor models to fully categorical mixture models. Continuous models provided the best fit to the observed data and also suggested that a two-factor model of externalizing behavior, defined as (1) ODD+ADHD+CD and (2) SUD with adult antisocial behavior sharing common variance with both factors, was necessary to explain the covariation in externalizing disorders. The two-factor model of externalizing behavior was then replicated using a nationally representative sample drawn from the National Comorbidity Survey-Replication data (n?=?5,692). These results have important implications for the conceptualization of externalizing disorders in DSM-5. 相似文献