全文获取类型
收费全文 | 1889篇 |
免费 | 70篇 |
出版年
2023年 | 16篇 |
2022年 | 11篇 |
2021年 | 22篇 |
2020年 | 31篇 |
2019年 | 32篇 |
2018年 | 44篇 |
2017年 | 53篇 |
2016年 | 63篇 |
2015年 | 49篇 |
2014年 | 41篇 |
2013年 | 210篇 |
2012年 | 95篇 |
2011年 | 84篇 |
2010年 | 62篇 |
2009年 | 67篇 |
2008年 | 67篇 |
2007年 | 83篇 |
2006年 | 58篇 |
2005年 | 64篇 |
2004年 | 62篇 |
2003年 | 58篇 |
2002年 | 70篇 |
2001年 | 28篇 |
2000年 | 24篇 |
1999年 | 27篇 |
1998年 | 34篇 |
1997年 | 29篇 |
1996年 | 28篇 |
1995年 | 33篇 |
1994年 | 26篇 |
1993年 | 20篇 |
1992年 | 23篇 |
1991年 | 22篇 |
1990年 | 17篇 |
1989年 | 19篇 |
1988年 | 19篇 |
1987年 | 14篇 |
1986年 | 18篇 |
1985年 | 20篇 |
1984年 | 18篇 |
1983年 | 19篇 |
1982年 | 26篇 |
1981年 | 15篇 |
1980年 | 14篇 |
1979年 | 15篇 |
1978年 | 18篇 |
1977年 | 14篇 |
1976年 | 12篇 |
1975年 | 10篇 |
1973年 | 16篇 |
排序方式: 共有1959条查询结果,搜索用时 15 毫秒
111.
Recurrent suicidal behaviors in patients with Borderline Personality Disorder (BPD) are often considered communicative gestures; however, 10% complete suicide. This study seeks to identify risk factors for suicide within a BPD sample by comparing patients with High- and Low-Lethality attempts. BPD attempters (n = 113) were assessed on demographic, diagnostic, and personality variables: clinical symptoms, suicidal behaviors; childhood, family, and treatment histories; social adjustment; and recent life events. Forty-four High-Lethality attempters, defined by a score of 4 or more on Beck's Medical Lethality Scale, were compared to 69 Low-Lethality attempters. Discriminating variables were entered in a multivariate logistic regression model to define predictors of High-Lethality status. High-Lethality attempters were older, with children, less education, and lower socioeconomic class (SES) than Low-Lethality attempters. They were more likely to have Major Depressive Disorder (MDD), co-morbid Antisocial Personality Disorder (ASPD), and family histories of substance abuse. They reported greater intent to die, more lifetime attempts, hospitalizations, and time in the hospital. High-Lethality status was best predicted by low SES, co-morbid ASPD, extensive treatment histories, and greater intent to die. These characteristics resemble profiles of patients who complete suicide, are not specific for BPD, and do not include impulsivity, aggression, or severity of BPD criteria. 相似文献
112.
Temporal discounting rates in humans generally decrease as the amount of reward increases, a phenomenon known as themagnitude effect. In the present study, we examined whether temporal discounting and the magnitude effect are related to segregation of choices
in terms of gains or losses for waiting for or expediting receipt of a reward. Subjects (N = 24) responded to a series of
hypothetical choices about amounts of money available either immediately or after a delay. The immediate and delayed amounts
either were presented as integrated amounts in the baseline condition or were segregated as differential gains or losses for
choosing delayed or expedited consumption (delay and speedup conditions, respectively). Temporal discounting rates decreased
in the segregated conditions, in accord with the standard discounted utility model but contrary to the hypothesis that the
subjects were choosing on the basis of reward differentials in the baseline condition. The size of the magnitude effect was
comparable in the baseline and the delay conditions but decreased in the speed-up condition. These results challenge explanations
of the magnitude effect in terms of an increasing proportional sensitivity property of the utility function (Loewenstein &
Prelec, 1992) and the hypothesis that subjects choose on the basis of differentials even when the rewards are presented as
integrated amounts. 相似文献
113.
Transfer-appropriate processing theory (Roediger, Weldon, & Challis, 1989) proposes that dissociations between performance on explicit and implicit memory tests arise because these tests often rely on different types of information processing (e.g., perceptual processing vs conceptual processing). This perspective predicts that implicit and explicit memory tasks that rely primarily on conceptual processing should show comparable results, not dissociations. Numerous studies have demonstrated such similarities. It is, however, possible that these results arise from explicit memory contamination of performance on implicit memory tasks. To address this issue, an experiment was conducted in which participants were administered the sedative midazolam prior to study. Midazolam is known to create a temporary, but dense, period of anterograde amnesia. The effects of blocking stimulus materials by semantic category at study and generation at study were investigated on category exemplar production and category-cued recall. The results of this study demonstrated a dissociation of the effects of midazolam on category exemplar production and category-cued recall. Specifically, midazolam reduced the effect of blocking stimulus materials in category-cued recall, but not in category exemplar production. The differential effect of midazolam on explicit and implicit memory is at odds with transfer-appropriate processing theory and suggests that theories of memory must distinguish the roles of different types of conceptual processing on implicit and explicit memory tests. 相似文献
114.
Morrison AP 《Memory (Hove, England)》2004,12(4):517-524
There has been a long tradition of studying imagery in relation to psychotic symptoms. Recent studies have suggested that imagery may be involved in the development and maintenance of psychotic symptoms (hallucinations and delusions in particular). Following a review of this literature, including work conducted by the author and colleagues, a case study is used to illustrate the clinical applications of this work. Working with images that were associated with persecutory delusions appeared to contribute to a reduction in distress, preoccupation, and conviction in relation to these beliefs, which were assessed using a standardised measure (PSYRATS). The implications for theory, practice, and future research are considered. 相似文献
115.
116.
Anthony?R.?PratkanisEmail author Melissa?D.?Gliner 《Current psychology (New Brunswick, N.J.)》2004,23(4):279-304
In two crucial test experiments pitting altercasting against traditional source credibility theories (Hovland, Janis, & Kelley,
1953; Kelman, 1958), students received a message emphasizing either technical or protective themes attributed to a child or
an expert. Traditional theories predict an expert should be more effective than a child. According to altercasting theory,
credibility is a function of the privileges and responsibilities associated with positions in a role-set. A child places a
message recipient into the role of protector and is most effective when arguing for protective as opposed to technical messages.
An expert is most effective when arguing within a domain of expertise (technical issues) as opposed to common opinion. The
results overwhelmingly support an altercasting interpretation of source credibility. 相似文献
117.
A number of lines of study suggest that word meanings are not always fully exploited in comprehension. In two experiments,
we used a text-change paradigm to study depth of semantic processing during reading. Participants were instructed to detect
words that changed across two consecutive presentations of short texts. The results suggest that the full details of word
meanings are not always incorporated into the interpretation and that the degree of semantic detail in the representation
is a function of linguistic focus. The results provide evidence for the idea that representations are only good enough for
the purpose at hand (Ferreira, Bailey, & Ferraro, 2002). 相似文献
118.
The purpose of this study was to investigate convergent and discriminant validity of the five-factor model of adolescent personality in a school setting using three different raters (methods): self-ratings, peer ratings, and teacher ratings. The authors investigated validity through a multitrait-multimethod matrix and a confirmatory factor analysis correlated trait, uncorrelated method model. With the exception of Emotional Stability, each analysis demonstrated similar patterns and together provided support for the convergent and discriminant validity of the five-factor model structure of adolescent personality. However, among the three raters, self-ratings of personality provided a comparatively weaker method for assessing adolescent personality. The influences of agreement between self and other raters are discussed in relation to contrast, perceiver, and target effects; expert observer effects; the degree of acquaintanceship; and the effect of the social context. 相似文献
119.
120.
High interrater reliability was noted among academics selecting students for professional psychology training. Women raters showed higher concordance than men, although all raters showed significant agreement about the male and the female applicants. 相似文献