全文获取类型
收费全文 | 525篇 |
免费 | 26篇 |
国内免费 | 1篇 |
出版年
2021年 | 5篇 |
2020年 | 8篇 |
2019年 | 6篇 |
2018年 | 21篇 |
2017年 | 10篇 |
2016年 | 15篇 |
2015年 | 9篇 |
2014年 | 17篇 |
2013年 | 67篇 |
2012年 | 14篇 |
2011年 | 16篇 |
2010年 | 6篇 |
2009年 | 9篇 |
2008年 | 16篇 |
2007年 | 17篇 |
2006年 | 21篇 |
2005年 | 13篇 |
2004年 | 16篇 |
2003年 | 14篇 |
2002年 | 15篇 |
2001年 | 15篇 |
2000年 | 17篇 |
1999年 | 9篇 |
1998年 | 4篇 |
1997年 | 7篇 |
1996年 | 5篇 |
1995年 | 7篇 |
1994年 | 8篇 |
1992年 | 7篇 |
1991年 | 5篇 |
1990年 | 5篇 |
1989年 | 8篇 |
1987年 | 4篇 |
1986年 | 8篇 |
1985年 | 4篇 |
1984年 | 6篇 |
1983年 | 9篇 |
1982年 | 4篇 |
1980年 | 5篇 |
1978年 | 7篇 |
1977年 | 3篇 |
1975年 | 9篇 |
1974年 | 4篇 |
1973年 | 7篇 |
1972年 | 3篇 |
1970年 | 4篇 |
1969年 | 7篇 |
1968年 | 9篇 |
1967年 | 16篇 |
1966年 | 7篇 |
排序方式: 共有552条查询结果,搜索用时 15 毫秒
121.
The development of the Image of Aging Scale is described. It ineludes positive and negative images of elders within nine domains. The scale showed good 1-wk. test-retest reliability, internal consistency, and convergent validity. 相似文献
122.
Duncan GJ Boisjoly J Kremer M Levy DM Eccles J 《Journal of abnormal child psychology》2005,33(3):375-385
Past research suggests that congregating delinquent youth increases their likelihood of problem behavior. We test for analogous peer effects in the drug use and sexual behavior of male (n = 279) and female (n = 435) college students, using data on the characteristics of first-year roommates to whom they were randomly assigned. We find that males who reported binge drinking in high school drink much more in college if assigned a roommate who also binge drank in high school than if assigned a nonbinge-drinking roommate. No such multiplier effect is observed for females, nor are multiplier effects observed for marijuana use or sexual behavior for either males or females. Students who did not engage in these behaviors in high school do not appear to be affected by their roommates high school behavior. 相似文献
123.
The authors present a meta-analysis of sex differences in smiling based on 448 effect sizes derivedfrom 162 research reports. There was a statistically significant tendency for women and adolescent girls to smile more than men and adolescent boys (d = 0.41). The authors hypothesized that sex differences in smiling would be larger when concerns about gender-appropriate behavior were made more conspicuous, situational constraints were absent or ambiguous, or emotion (especially negative) was salient. It was also predicted that the size of the sex difference in smiling would vary by culture and age. Moderator analysis supported these predictions. Although men tend to smile less than women, the degree to which this is so is contingent on rules and roles. 相似文献
124.
Transient spatial attention degrades temporal resolution 总被引:2,自引:0,他引:2
To better understand the interplay between the temporal and spatial components of visual perception, we studied the effects of transient spatial attention on temporal resolution. Given that spatial attention sharpens spatial resolution, can it also affect temporal resolution? To assess temporal resolution, we measured the two-flash fusion threshold When two flashes of light are presented successively to the same location, the two-flash fusion threshold is the minimal interval between the flashes at which they are still perceived as two flashes, rather than a single flash. This assessment of temporal resolution was combined with peripheral precuing--a direct manipulation of transient spatial attention. This allowed us to demonstrate, for the first time, that spatial attention can indeed affect temporal resolution. However, in contrast to its effect on spatial resolution, spatial attention degrades temporal resolution. Two attentional mechanisms that could account for both attentional effects--enhanced spatial resolution and reduced temporal resolution--are discussed. 相似文献
125.
Jerrold Pollak Sheldon Levy Timothy Breitholtz 《Journal of counseling and development : JCD》1999,77(3):350-358
This article reviews several assessment factors useful identifying the presence of a possible medical illness or neurodevelopmental disorder contributing to a client's adjustment problems. Use of behavioral observations, record reviews, brief neuro-behavioral screening tests, and the taking of a history are outlined that can assist in raising the index of suspicion for organic influence. Also addressed are issues pertaining to referral for medical and specialty assessments, including neuropsychological evaluation. 相似文献
126.
Approximately 5% of children are affected by attention-deficit/hyperactivity disorder (ADHD), and more boys are affected than girls. This study examined the magnitude of genetic and environmental influences on ADHD and several questions regarding sex differences in its prevalence and liability. The participants were 2,391 twin and sibling pairs from Australia, ages 3-18. ADHD symptoms in the general population were highly heritable (h2 = .85-.90), as were deviant ADHD scores in the selected population. The magnitude of familial influences was similar for boys and girls, although there were shared environmental influences on ADHD in girls but not boys and dominance genetic influences on ADHD in boys but not girls. Specific genetic and environmental influences were highly similar for boys and girls. Evidence supported the polygenic multiple threshold model rather than the constitutional variability model of sex differences in ADHD. 相似文献
127.
James D. Laird Tammy Alibozak Dava Davainis Katherine Deignan Katherine Fontanella Jennifer Hong Brett Levy Christine Pacheco 《Motivation and emotion》1994,18(3):231-247
Two experiments explored the role of mimicry and self-perception processes in emotional contagion. In Study 1, 46 subjects watched two brief film clips depicting an episode of startled fear. In a separate procedure, subjects adopted facial expressions of emotion, and reported whether the expressions had caused them to feel corresponding emotions. Those who reported feeling the emotions were identified as more responsive to self-produced cues for feeling. Subjects who visibly moved to mimic the behavior of the actor were significantly more likely to be those who were more responsive to self-produced cues. In Study 2, 57 subjects watched three film clips depicting happy people. During clips when they inhibited the movements of their faces, subjects reported less happiness than during clips when they moved naturally and were able to mimic, or when they exaggerated their movements. This effect occurred only among subjects who, in a separate procedure, had been identified as more responsive to self-produced cues.The authors would like to thank Paul Ekman, Jerry Ginzburg, and an anonymous reviewer for very helpful suggestions for ways to improve the paper. 相似文献
128.
129.
130.
Workers who have claimed an association between Fragile X [fra(x)] Syndrome and Hyperactivity and aggressive behavior have done so despite the lack of controlled studies using standard diagnostic criteria. Accordingly, we provided a controlled test of the hypothesis that individuals with the fra(x) Syndrome are more hyperactive and have more symptoms of aggression than other mentally retarded individuals. The test formed part of a study to assess autistic behavior in fra(x) individuals. A sample of fra(x) individuals was obtained from the register of a clinical genetics unit and individually matched for age, sex, and IQ with mentally retarded individuals selected from assessment centres. Fortyfive pairs of fra(x) cases and control individuals were compared on criteria which reflected DSM-III concepts of hyperactivity and on criteria reflecting aggressive behavior. The comparison failed to find a higher prevalence of these symptoms in the fra(x) group. An analysis of the study's statistical power suggested that it is unlikely that the investigation failed to detect a large to medium difference between fra(x) individuals and control individuals in the symptoms investigated. 相似文献