全文获取类型
收费全文 | 5280篇 |
免费 | 255篇 |
国内免费 | 3篇 |
专业分类
5538篇 |
出版年
2023年 | 39篇 |
2022年 | 41篇 |
2021年 | 55篇 |
2020年 | 102篇 |
2019年 | 112篇 |
2018年 | 170篇 |
2017年 | 175篇 |
2016年 | 168篇 |
2015年 | 117篇 |
2014年 | 144篇 |
2013年 | 663篇 |
2012年 | 239篇 |
2011年 | 222篇 |
2010年 | 134篇 |
2009年 | 148篇 |
2008年 | 226篇 |
2007年 | 208篇 |
2006年 | 175篇 |
2005年 | 177篇 |
2004年 | 145篇 |
2003年 | 139篇 |
2002年 | 142篇 |
2001年 | 60篇 |
2000年 | 72篇 |
1999年 | 63篇 |
1998年 | 79篇 |
1997年 | 50篇 |
1996年 | 59篇 |
1995年 | 57篇 |
1994年 | 61篇 |
1992年 | 68篇 |
1990年 | 40篇 |
1989年 | 46篇 |
1988年 | 45篇 |
1986年 | 47篇 |
1985年 | 42篇 |
1984年 | 58篇 |
1983年 | 43篇 |
1982年 | 38篇 |
1981年 | 48篇 |
1980年 | 52篇 |
1979年 | 42篇 |
1978年 | 50篇 |
1977年 | 52篇 |
1976年 | 50篇 |
1975年 | 57篇 |
1974年 | 48篇 |
1973年 | 56篇 |
1970年 | 39篇 |
1968年 | 42篇 |
排序方式: 共有5538条查询结果,搜索用时 0 毫秒
221.
van der Schoot M Licht R Horsley TM Sergeant JA 《Scandinavian journal of psychology》2005,46(4):331-341
In Experiment 1, the effects of stop signal modality on the speed and efficiency of the inhibition process were examined. Stop signal reaction time (SSRT) and inhibition function slope in an auditory stop signal condition were compared to SSRT and inhibition function slope in a visual stop signal condition. It was found that auditory stop signals compared to visual stop signals enhanced both the speed and efficiency of stopping. The modality effects were attributed to differences in the neurophysiological processes underlying perception. However, Experiment 2 demonstrated that the modality difference was larger for 80 dB(A) auditory stop signals than 60 dB(A) auditory stop signals. This effect was reconciled with the suggestion that loud tones are more capable of eliciting immediate arousing effects on motor processes than weak tones and visual stimuli. The second purpose of the present investigation was to explore the utility (and potential advantages) of an alternative way of setting stop signal delay relative to mean reaction time (MRT). The method that was suggested compensates for inter-individual differences in primary task reaction speed by setting stop signal delays as proportions of the subjects' MRT. 相似文献
222.
Hattiangadi N Pillion JP Slomine B Christensen J Trovato MK Speedie LJ 《Brain and language》2005,92(1):12-25
We present a case that is unusual in many respects from other documented incidences of auditory agnosia, including the mechanism of injury, age of the individual, and location of neurological insult. The clinical presentation is one of disturbance in the perception of spoken language, music, pitch, emotional prosody, and temporal auditory processing in the absence of significant deficits in the comprehension of written language, expressive language production, or peripheral auditory function. Furthermore, the patient demonstrates relatively preserved function in other aspects of audition such as sound localization, voice recognition, and perception of animal noises and environmental sounds. This case study demonstrates that auditory agnosia is possible following traumatic brain injury in a child, and illustrates the necessity of assessment with a wide variety of auditory stimuli to fully characterize auditory agnosia in a single individual. 相似文献
223.
The current work examined police officers' decisions to shoot Black and White criminal suspects in a computer simulation. Responses to the simulation revealed that upon initial exposure to the program, the officers were more likely to mistakenly shoot unarmed Black compared with unarmed White suspects. However, after extensive training with the program, in which the race of the suspect was unrelated to the presence of a weapon, the officers were able to eliminate this bias. These findings are discussed in terms of their implications for the elimination of racial biases and the training of police officers. 相似文献
224.
Paul?Mooney Joseph?B.?RyanEmail author Brad?M.?Uhing Robert?Reid Michael?H.?Epstein 《Journal of Behavioral Education》2005,14(3):203-221
The purpose of this review was to report on the effectiveness and focus of academic self-management interventions for children and adolescents with emotional and behavioral disorders. Twenty-two studies published in 20 articles and involving 78 participants met inclusionary criteria. The overall mean effect size (ES) across those studies was 1.80 (range –0.46 to 3.00), indicating effects were generally large in magnitude and educationally meaningful. Self-monitoring interventions were the predominant type of self-management technique used by researchers. The mean ES for intervention types were self-evaluation (1.13), self-monitoring (1.90), strategy instruction techniques (1.75), self-instruction techniques (2.71), and multiple-component interventions (2.11). Interventions targeted improvement in math calculation skills more than any other area. The mean ES by academic area were math interventions (1.97), writing (1.13), reading (2.28), and social studies (2.66). There was evidence to support a claim of the generalization and maintenance of findings. Implications, limitations, and areas for future research are discussed. 相似文献
225.
In recent years, jail diversion programs for people with serious mental illness and co-occurring substance use disorders have received increasing attention and have rapidly grown in number. Previous studies suggest that jail diversion programs have the potential to achieve positive outcomes. The present study reports findings from 6 jail diversion programs (3 pre-booking and 3 post-booking) participating in a federally-funded research initiative to assess the effectiveness of jail diversion programs for people with co-occurring disorders. Diverted and non-diverted groups were compared on self-reported outcomes at 12 months following diversion. The findings suggest that jail diversion reduces time spent in jail without increasing the public safety risk, while linking participants to community-based services. Jail diversion costs and the implications of these results for jail diversion programs and future research are discussed. 相似文献
226.
Using multiregional, 3-year data from early career dementia caregivers, this study determines how behavior problems that occur early in the caregiving career influence time to nursing home placement and change in burden and depression over time. A Cox proportional hazards model indicated that caregivers who managed frequent behavior problems earlier are more likely to institutionalize. After controlling for important time-varying covariates in a series of growth-curve models, caregivers who were faced with severe, early behavior problems reported greater increases in burden and depression over the 3-year study period. The findings suggest the need to consider experiences early in the dementia caregiving career when accounting for key longitudinal outcomes and also emphasize the importance of attrition when attempting to model the health implications of informal long-term care over time. 相似文献
227.
Working memory mediates the short-term maintenance of information. Virtually all empirical research on working memory involves investigations of working memory for verbal and visual information. Whereas aging is typically associated with a deficit in working memory for these types of information, recent findings suggestive of relatively well-preserved long-term memory for emotional information in older adults raise questions about working memory for emotional material. This study examined age differences in working memory for emotional versus visual information. Findings demonstrate that, despite an age-related deficit for the latter, working memory for emotion was unimpaired. Further, older adults exhibited superior performance on positive relative to negative emotion trials, whereas their younger counterparts exhibited the opposite pattern. 相似文献
228.
Kimber?W.?MalmgrenEmail author Joseph?C.?Gagnon 《Journal of child and family studies》2005,14(2):299-312
We examined the school mobility of a cross-sectional sample of 70 secondary-age youth with emotional disturbance (ED). Data were collected through an archival review of school records. Students’ school mobility histories were examined in terms of the overall number of schools attended in the elementary school years, as well as the timing of the moves that were made. Findings indicate that sample students experienced high rates of school mobility with 66% having changed schools at least once by the end of 2nd grade and 89% having changed schools at least once by the end of 5th grade. Strategies for minimizing school mobility and the impact of high rates of school mobility are reviewed. 相似文献
229.
The reliable digit span (RDS) performance of chronic pain patients with unambiguous spinal injuries and no evidence of exaggeration or response bias (n = 53) was compared to that of chronic pain patients meeting criteria for definite malingered neurocognitive dysfunction (n = 35), and a group of nonmalingering moderate-severe traumatic brain injury (TBI) patients (n = 69). The results demonstrated that scores of 7 or lower were associated with high specificity (> .90) and sensitivity (up to .60) even when moderate to severe TBI are included. Multiple studies have demonstrated that RDS scores of 7 or lower rarely occur in TBI and pain patients who are not intentionally performing poorly on cognitive testing. This study supports the use of the RDS in detecting response bias in neuropsychological patients complaining of pain as well as in the assessment of pain-related cognitive impairment in patients whose primary complaint is pain. 相似文献
230.
Reliable Digit Span (RDS) is an indicator used to assess the validity of cognitive test performance. Scores of 7 or lower suggest poor effort or negative response bias. The possibility that RDS scores are also affected by pain has not been addressed thus potentially threatening RDS specificity. The current study used cold pressor-induced pain to investigate the effect of pain on RDS scores. Sixty undergraduate volunteers randomly assigned to one of three conditions (control, simulator, pain) completed the Digit Span subtest from the Wechsler Adult Intelligence Scale-III from which the RDS is derived. No differences in RDS scores were found between the control and pain groups, and neither group scored below 8. Sixty-five percent of the simulator group scored 7 or below. These results suggest that RDS is not affected by pain, and scores of 7 or less in persons with pain can be more confidently attributed to negative response bias. 相似文献