全文获取类型
收费全文 | 12021篇 |
免费 | 506篇 |
国内免费 | 6篇 |
出版年
2023年 | 67篇 |
2022年 | 62篇 |
2021年 | 122篇 |
2020年 | 217篇 |
2019年 | 252篇 |
2018年 | 333篇 |
2017年 | 307篇 |
2016年 | 370篇 |
2015年 | 243篇 |
2014年 | 333篇 |
2013年 | 1308篇 |
2012年 | 562篇 |
2011年 | 556篇 |
2010年 | 408篇 |
2009年 | 417篇 |
2008年 | 581篇 |
2007年 | 562篇 |
2006年 | 500篇 |
2005年 | 431篇 |
2004年 | 466篇 |
2003年 | 423篇 |
2002年 | 413篇 |
2001年 | 178篇 |
2000年 | 195篇 |
1999年 | 185篇 |
1998年 | 188篇 |
1997年 | 157篇 |
1996年 | 107篇 |
1995年 | 146篇 |
1994年 | 143篇 |
1993年 | 131篇 |
1992年 | 123篇 |
1991年 | 111篇 |
1990年 | 109篇 |
1989年 | 106篇 |
1988年 | 110篇 |
1987年 | 108篇 |
1986年 | 85篇 |
1985年 | 101篇 |
1984年 | 116篇 |
1983年 | 97篇 |
1982年 | 110篇 |
1981年 | 115篇 |
1980年 | 104篇 |
1979年 | 102篇 |
1978年 | 109篇 |
1977年 | 89篇 |
1976年 | 93篇 |
1975年 | 64篇 |
1974年 | 76篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
841.
Heimbauer LA Conway CM Christiansen MH Beran MJ Owren MJ 《Behavior research methods》2012,44(3):733-741
The serial reaction time (SRT) task is a simple procedure in which participants produce differentiated responses to each of a series of stimuli presented at varying locations. Learning about stimulus order is revealed through decreased latencies for structured versus randomized sequences. Although widely used with humans and well suited to nonhumans, this paradigm is little used in comparative research. In the present article, we describe an SRT procedure that uses colored circles as stimuli, a circular layout of locations, and symmetrical joystick deflections as responses. In two experiments, we showed that four rhesus macaques (Macaca mulatta) learned to track sequences up to eight items long, with three animals showing faster responding to repeating sequences than to randomized versions. After extended training, these participants also showed evidence of faster responding at all positions within repeating sequences. This method minimizes response effort, equates effort and travel distance across stimulus locations, and is applicable to any joystick-capable species. 相似文献
842.
Alloy LB Urošević S Abramson LY Jager-Hyman S Nusslock R Whitehouse WG Hogan M 《Journal of abnormal psychology》2012,121(1):16-27
Little longitudinal research has examined progression to more severe bipolar disorders in individuals with "soft" bipolar spectrum conditions. We examine rates and predictors of progression to bipolar I and II diagnoses in a nonpatient sample of college-age participants (n = 201) with high General Behavior Inventory scores and childhood or adolescent onset of "soft" bipolar spectrum disorders followed longitudinally for 4.5 years from the Longitudinal Investigation of Bipolar Spectrum (LIBS) project. Of 57 individuals with initial cyclothymia or bipolar disorder not otherwise specified (BiNOS) diagnoses, 42.1% progressed to a bipolar II diagnosis and 10.5% progressed to a bipolar I diagnosis. Of 144 individuals with initial bipolar II diagnoses, 17.4% progressed to a bipolar I diagnosis. Consistent with hypotheses derived from the clinical literature and the Behavioral Approach System (BAS) model of bipolar disorder, and controlling for relevant variables (length of follow-up, initial depressive and hypomanic symptoms, treatment-seeking, and family history), high BAS sensitivity (especially BAS Fun Seeking) predicted a greater likelihood of progression to bipolar II disorder, whereas early age of onset and high impulsivity predicted a greater likelihood of progression to bipolar I (high BAS sensitivity and Fun-Seeking also predicted progression to bipolar I when family history was not controlled). The interaction of high BAS and high Behavioral Inhibition System (BIS) sensitivities also predicted greater likelihood of progression to bipolar I. We discuss implications of the findings for the bipolar spectrum concept, the BAS model of bipolar disorder, and early intervention efforts. 相似文献
843.
Emily Bullock‐Yowell Lindsay Andrews Amy McConnell Michael Campbell 《Journal of Employment Counseling》2012,49(1):18-30
Little empirical knowledge about unemployed adults exists during a time when this group needs substantial career assistance. Because there is greater empirical understanding of college student career development compared with what is known about unemployed adults, a chi square and analyses of covariance were used to compare the career thinking, self‐efficacy, and interests of 169 unemployed adults seeking public job center assistance with that of 200 college students. Additionally, a diverse sample of 2,444 unemployed adults is demographically reviewed. Unemployed adults reported a higher level of Realistic interests and similar levels of negative career thinking and career decision‐making self‐efficacy compared with college students. 相似文献
844.
A growing body of research has suggested that the experience of injustice, psychological contract breach, or unfairness can adversely impact an employee's health. We conducted a meta-analysis to examine the effects of unfairness perceptions on health, examining types of fairness and methodological characteristics as moderators. Results suggested that perceptions of unfairness were associated with indicators of physical and mental health. Furthermore, psychological contract breach contributed to the prediction of strain-related indicators of health above and beyond that accounted for by injustice alone. 相似文献
845.
Elaine M. Wong Michael P. Haselhuhn Laura J. Kray 《Journal of experimental social psychology》2012,48(1):403-406
Reflecting on previous experiences and considering how things could have been better (upward counterfactual reflection) is central to learning. While researchers have identified a number of situational antecedents to upward counterfactual generation, less is known about individual differences in counterfactual reflection. We address this gap by considering how implicit beliefs regarding the fixedness or malleability of basic characteristics influence counterfactual generation. In a negotiation context, we show that individuals who believe that negotiation ability is changeable are more likely to consider how things could have been better following a negotiation experience compared to individuals who believe that negotiation ability is fixed. We further demonstrate the impact of upward counterfactual reflection on learning and performance: Negotiators who hold malleable beliefs are better able to discover creative agreements that benefit both parties in a negotiation, and these performance differences are mediated by upward counterfactual generation. 相似文献
846.
Michael Inzlicht Jennifer N. Gutsell Lisa Legault 《Journal of experimental social psychology》2012,48(1):361-365
Humans are empathic animals. We automatically match other people's motor responses, allowing us to get “under the skin” of other people. Although this perception–action-coupling—a form of motor resonance—occurs spontaneously, this happens less readily with the outgroup (vs. the ingroup) and for those high (vs. low) in prejudice. Thus, prejudice diminishes our tendency to resonate with the outgroup. Here we suggest that the reverse is also possible—that resonating with the actions of an outgroup member can reduce prejudice. We predict, in other words, that explicitly mimicking the outgroup can reduce prejudice. Participants watched a 140-second video depicting actors repeatedly reaching for and drinking from a glass of water. They passively watched a video with Black actors; watched the video and mimicked the Black actors; or watched and mimicked a video with actors from their ingroup. Participants then completed the Affect Misattribution Procedure (Payne, Cheng, Govorun, & Stewart, 2005), a measure of implicit anti-Black prejudice, and an explicit symbolic racism measure. Results indicate that the outgroup-mimicry group had similar implicit preference for Blacks and Whites, unlike the other two groups, which preferred Whites over Blacks. The outgroup-mimicry group also reported less explicit racism towards Blacks than the ingroup-mimicry group, but no less than the ingroup-observation group. Mimicking specific outgroup members, therefore, reduces implicit, and possibly explicit, bias against the outgroup more generally. 相似文献
847.
An emerging literature indicates that dispositional bias in causal attribution of social behavior is weaker for people with working-class (vs. middle-class) backgrounds. However, it is unknown whether this difference is also present in spontaneous forms of trait inference. In the current work, American undergraduates were asked to merely memorize many pairings of a target face and a trait-implying behavior. In a subsequent lexical judgment task, after each face was presented as a fixation, either an implied trait or its antonym was given as a target. As expected, participants with college-educated parents (middle class) showed a strong N400 event-related potential component to the antonym (vs. the implied trait), suggesting spontaneous trait inference during the memorization phase. In contrast, those with high-school-educated parents (working class) showed no such effect. It is important to note that the N400 spontaneous trait inference effect was associated with perceived significance of dispositions in accounting for social behaviors. 相似文献
848.
Two classes of hand action representations are shown to be activated by listening to the name of a manipulable object (e.g., cellphone). The functional action associated with the proper use of an object is evoked soon after the onset of its name, as indicated by primed execution of that action. Priming is sustained throughout the duration of the word's enunciation. Volumetric actions (those used to simply lift an object) show a negative priming effect at the onset of a word, followed by a short-lived positive priming effect. This time-course pattern is explained by a dual-process mechanism involving frontal and parietal lobes for resolving conflict between candidate motor responses. Both types of action representations are proposed to be part of the conceptual knowledge recruited when the name of a manipulable object is encountered, although functional actions play a more central role in the representation of lexical concepts. 相似文献
849.
Some people are better readers than others, and this variation in comprehension ability is predicted by measures of working memory capacity (WMC). The primary goal of this study was to investigate the mediating role of mind-wandering experiences in the association between WMC and normal individual differences in reading comprehension, as predicted by the executive-attention theory of WMC (e.g., Engle & Kane, 2004). We used a latent-variable, structural-equation-model approach, testing skilled adult readers on 3 WMC span tasks, 7 varied reading-comprehension tasks, and 3 attention-control tasks. Mind wandering was assessed using experimenter-scheduled thought probes during 4 different tasks (2 reading, 2 attention-control). The results support the executive-attention theory of WMC. Mind wandering across the 4 tasks loaded onto a single latent factor, reflecting a stable individual difference. Most important, mind wandering was a significant mediator in the relationship between WMC and reading comprehension, suggesting that the WMC-comprehension correlation is driven, in part, by attention control over intruding thoughts. We discuss implications for theories of WMC, attention control, and reading comprehension. 相似文献
850.
Previous research has not sufficiently addressed factors that define and moderate racial categorization judgments. This study independently manipulated skin color and facial physiognomy to determine their relative weighting in racial categorization. Participants (N = 250) judged faces varying on 10 levels of facial physiognomy (from Afrocentric to Eurocentric) and 10 levels of skin color (from dark to light) under either no time constraints, a modest time constraint, and under a stringent time constraint. Skin color was a powerful predictor of racial typicality ratings at all levels of facial physiognomy, but participants relied upon facial physiognomy more when rating faces of light than dark skin color. Skin color was a more important cue than facial physiognomy under no time constraints, but as time constraints became more severe, skin color's importance decreased, yet it remained a more important cue at extreme physiognomy levels. The relationship between skin color and racial typicality ratings was stronger for those with more negative implicit racial attitudes. These findings suggest the primary role of skin color in racial categorization and underscore the importance of implicit attitudes in explicit categorization judgments. 相似文献