全文获取类型
收费全文 | 819篇 |
免费 | 9篇 |
专业分类
828篇 |
出版年
2023年 | 5篇 |
2021年 | 7篇 |
2020年 | 10篇 |
2019年 | 19篇 |
2018年 | 24篇 |
2017年 | 26篇 |
2016年 | 24篇 |
2015年 | 29篇 |
2014年 | 25篇 |
2013年 | 91篇 |
2012年 | 36篇 |
2011年 | 29篇 |
2010年 | 26篇 |
2009年 | 30篇 |
2008年 | 41篇 |
2007年 | 37篇 |
2006年 | 28篇 |
2005年 | 25篇 |
2004年 | 31篇 |
2003年 | 28篇 |
2002年 | 23篇 |
2001年 | 17篇 |
2000年 | 14篇 |
1999年 | 14篇 |
1998年 | 15篇 |
1997年 | 7篇 |
1996年 | 7篇 |
1995年 | 8篇 |
1994年 | 7篇 |
1993年 | 5篇 |
1992年 | 14篇 |
1991年 | 5篇 |
1990年 | 7篇 |
1989年 | 12篇 |
1988年 | 7篇 |
1987年 | 5篇 |
1986年 | 4篇 |
1985年 | 8篇 |
1984年 | 11篇 |
1983年 | 5篇 |
1982年 | 4篇 |
1981年 | 5篇 |
1980年 | 4篇 |
1978年 | 7篇 |
1977年 | 4篇 |
1975年 | 4篇 |
1970年 | 5篇 |
1968年 | 4篇 |
1967年 | 3篇 |
1966年 | 3篇 |
排序方式: 共有828条查询结果,搜索用时 0 毫秒
71.
Facets of support related to well-being: quantitative social isolation and perceived family support in a sample of elderly women 总被引:4,自引:0,他引:4
The purpose of this study was to examine the independent and interactive relationships of measures of network embeddedness and perceived social support with mental and physical health measures from responses of a sample of 271 community-dwelling elderly women. Quantitative social isolation was measured as the co-occurrence of low network embeddedness with family and with friends. There was a threshold effect such that quantitatively isolated participants had poorer psychological well-being and functional health than did nonisolated participants. This effect was independent of perceived support levels. The pattern was different for perceived social support. Elderly women with low perceived family support had poorer psychological well-being regardless of perceived support from friends or network embeddedness. Implications are discussed for several unanswered questions in the social support literature, including possible interventions for the quantitatively isolated and for those with low levels of perceived support. 相似文献
72.
Lynn L. Peterson Kent O. Dana Joan S. Reisch Thomas Hibberd Maurice Korman Paul I. Munves Alvin J. North Thomas A. Van Hoose Frank Trimboli 《Behavior research methods》1981,13(4):485-498
An information processing system for a psychiatric emergency room is described. Several studies are presented that show the utility of the system. In the first study, variables involved in diagnosis are explicated. The second study attempts to determine the characteristics that distinguish recidivists from nonrecidivists at an emergency room. The third study attempts to find patient variables related to success in short-term treatment programs. The final study is aimed at discovering whether there are psychopathological effects related to the use of inhalants. Together, these studies show the potential of a mental health information system for learning more about the nature of mental disorders and their treatment. 相似文献
73.
10 forms were drawn on the palms of 48 subjects who were without vision. Subjects were then required haptically to explore three forms and choose the drawn shape. Three intervals, 0, 5, and 15 sec., were inserted between the presentation of the drawn form and the choice. It was expected that there would be a decline in the accuracy of form recognition with an increase in delay. Form recognition was significantly superior with no delay and loss of shape information seems to occur rather quickly since there was no significant difference in the accuracy of form recognition between the two longer delays. 相似文献
74.
Alexandria Meyer Greg Hajcak Dana C. Torpey Autumn Kujawa Jiyon Kim Sara Bufferd Gabrielle Carlson Daniel N. Klein 《Journal of abnormal child psychology》2013,41(8):1257-1266
Anxiety disorders are the most frequently diagnosed form of psychopathology in children and often result in chronic impairment that persists into adulthood. Identifying neurobehavioral correlates of anxiety that appear relatively early in life would inform etiological models of development and allow intervention and prevention strategies to be implemented more effectively. The error-related negativity (ERN), a negative deflection in the event-related potential at fronto-central sites approximately 50 ms following the commission of errors, has been consistently found to be larger among anxious adults. The current study sought to extend these findings to even younger individuals: the ERN was elicited by a Go/NoGo task in 48 six year-old children with a clinical anxiety disorder assessed by diagnostic interview and 48 age-matched controls. In addition to child anxiety disorder, the ERN was examined in relation to maternal history of anxiety disorder, which was previously related to a smaller ERN. Anxious children were characterized by a larger (i.e., more negative) ERN and maternal history of anxiety disorder was associated with a smaller ERN. Thus, the relationship between an increased ERN and clinical anxiety is evident by age 6, and this effect appears independent from an opposing influence of maternal anxiety history on the ERN. These findings support the ERN as a promising neurobehavioral marker of anxiety, and implications are discussed. 相似文献
75.
Shmuel Lissek Stephanie J. Rabin Dana J. McDowell Sharone Dvir Daniel E. Bradford Marilla Geraci Daniel S. Pine Christian Grillon 《Behaviour research and therapy》2009,47(2):111-118
Classical fear-conditioning is central to many etiologic accounts of panic disorder (PD), but few lab-based conditioning studies in PD have been conducted. One conditioning perspective proposes associative-learning deficits characterized by deficient safety learning among PD patients. The current study of PD assesses acquisition and retention of discriminative aversive conditioning using a fear-potentiated startle paradigm. This paradigm was chosen for its specific capacity to independently assess safety- and danger learning in the service of characterizing putative anomalies in each type of learning among those with PD. Though no group difference in fear-potentiated startle was found at retention, acquisition results demonstrate impaired discriminative learning among PD patients as indexed by measures of conditioned startle-potentiation to learned safety and danger cues. Importantly, this discrimination deficit was driven by enhanced startle-potentiation to the learned safety cue rather than aberrant reactivity to the danger cue. Consistent with this finding, PD patients relative to healthy individuals reported higher expectancies of dangerous outcomes in the presence of the safety cue, but equal danger expectancies during exposure to the danger cue. Such results link PD to impaired discrimination learning, reflecting elevated fear responding to learned safety cues. 相似文献
76.
The present study utilized an experimental design to investigate the short term effects of exposure to sexualized female video game characters on gender stereotyping and female self-concept in emerging adults. Bussey and Bandura’s (1999) social cognitive theory of gender development and differentiation was used to explicate this relationship. Undergraduate students (N?=?328) at a large U.S. Southwestern university participated in the study. Students were randomly assigned to play a “sexualized” heroine, a “non-sexualized” heroine, or no video game; then completed an online questionnaire. Female self-efficacy was negatively affected by game play with the sexualized female character. Results cautiously suggest that playing a sexualized video game heroine unfavorably influenced people’s beliefs about women in the real world. 相似文献
77.
Disadvantageous decision making is cited as one of the premier problems in childhood development, underlying risky behavior and causing adolescents to make poor choices that could prove detrimental later in life. However, there are relatively few studies looking at the development of decision making in children and adolescents, and fewer still comparing it with the performance trajectories of more typically developing cognitive functions. In the current study, we measured the affective decision-making abilities of children and adolescents 8- to 17-years-old using the Iowa Gambling Task (IGT; Bechara, 2007) in conjunction with a battery of established cognitive neuropsychological assessments. In contrast to the typical linear development of executive functions, affective decision-making abilities progressed in a J-shaped curve. Younger, more developmentally naive children performed better on the IGT than older, early-adolescent individuals, with performance becoming advantageous again toward the end of the teenage years. This trajectory is thought to coincide with asymmetric neural development in early adolescents, with relatively overactive striatal regions creating impulsive reward-driven responses that may go unchecked by the slower developing inhibitive frontal cortex. This trajectory is in stark contrast with the linear development of memory, speed of processing, and other cognitive abilities over the ages. 相似文献
78.
D. Lance Ferris Douglas J. Brown Daniel Heller 《Organizational behavior and human decision processes》2009,108(2):279-286
Drawing upon belongingness theory, we tested organization-based self-esteem (OBSE) as a mediator of the relation between organizational supports and organizational deviance. Data from 237 employees were collected at three points in time over one year. Using structural equation modeling, we found that OBSE fully mediated the relation between organizational supports and organizational deviance. Controlling for preexisting predictors of deviance, including personality traits (agreeableness, neuroticism and conscientiousness) and role stressors (role conflict, ambiguity, and overload), did not eliminate the relation between OBSE and organizational deviance. The implications for the OBSE and deviance literatures are discussed. 相似文献
79.
Five-factor model of personality and job satisfaction: a meta-analysis 总被引:16,自引:0,他引:16
This study reports results of a meta-analysis linking traits from the 5-factor model of personality to overall job satisfaction. Using the model as an organizing framework, 334 correlations from 163 independent samples were classified according to the model. The estimated true score correlations with job satisfaction were -.29 for Neuroticism, .25 for Extraversion, .02 for Openness to Experience, .17 for Agreeableness, and .26 for Conscientiousness. Results further indicated that only the relations of Neuroticism and Extraversion with job satisfaction generalized across studies. As a set, the Big Five traits had a multiple correlation of .41 with job satisfaction, indicating support for the validity of the dispositional source of job satisfaction when traits are organized according to the 5-factor model. 相似文献
80.