全文获取类型
收费全文 | 1516篇 |
免费 | 73篇 |
出版年
2024年 | 4篇 |
2023年 | 11篇 |
2022年 | 18篇 |
2021年 | 20篇 |
2020年 | 32篇 |
2019年 | 30篇 |
2018年 | 49篇 |
2017年 | 54篇 |
2016年 | 67篇 |
2015年 | 52篇 |
2014年 | 50篇 |
2013年 | 174篇 |
2012年 | 86篇 |
2011年 | 88篇 |
2010年 | 51篇 |
2009年 | 54篇 |
2008年 | 91篇 |
2007年 | 63篇 |
2006年 | 77篇 |
2005年 | 62篇 |
2004年 | 74篇 |
2003年 | 62篇 |
2002年 | 45篇 |
2001年 | 32篇 |
2000年 | 26篇 |
1999年 | 18篇 |
1998年 | 25篇 |
1997年 | 19篇 |
1996年 | 15篇 |
1995年 | 19篇 |
1994年 | 10篇 |
1993年 | 12篇 |
1992年 | 11篇 |
1991年 | 9篇 |
1990年 | 7篇 |
1989年 | 6篇 |
1988年 | 3篇 |
1987年 | 4篇 |
1986年 | 6篇 |
1985年 | 7篇 |
1984年 | 5篇 |
1983年 | 6篇 |
1982年 | 5篇 |
1981年 | 10篇 |
1980年 | 4篇 |
1977年 | 2篇 |
1974年 | 3篇 |
1970年 | 2篇 |
1969年 | 2篇 |
1967年 | 2篇 |
排序方式: 共有1589条查询结果,搜索用时 15 毫秒
871.
Carly A. Yadon Julie M. Bugg Michael A. Kisley Deana B. Davalos 《Cognitive, affective & behavioral neuroscience》2009,9(4):448-458
P50 suppression deficits have been documented in clinical and nonclinical populations, but the behavioral correlates of impaired
auditory sensory gating remain poorly understood. In the present study, we examined the relationship between P50 gating and
healthy adults’ performance on cognitive inhibition tasks. On the basis of load theory (Lavie, Hirst, de Fockert, & Viding,
2004), we predicted that a high perceptual load, a possible consequence of poor auditory P50 sensory gating, would have differential
(i.e., positive vs. negative) effects on performance of cognitive inhibition tasks. A dissociation was observed such that
P50 gating was negatively related to interference resolution on a Stroop task and positively related to response inhibition
on a go/no-go task. Our findings support the idea that a high perceptual load may be beneficial to Stroop performance because
of the reduced processing of distractors but detrimental to performance on the go/no-go task because of interference with
stimulus discrimination. 相似文献
872.
Dorothy M. Fragaszy Erica Kennedy Aeneas Murnane Charles Menzel Gene Brewer Julie Johnson-Pynn William Hopkins 《Animal cognition》2009,12(3):491-504
We examined whether navigation is impacted by experience in two species of nonhuman primates. Five chimpanzees (Pan troglodytes) and seven capuchin monkeys (Cebus apella) navigated a cursor, using a joystick, through two-dimensional mazes presented on a computer monitor. Subjects completed
192 mazes, each one time. Each maze contained one to five choices, and in up to three of these choices, the correct path required
moving the cursor away from the Euclidean direction toward the goal. Some subjects completed these mazes in a random order
(Random group); others in a fixed order by ascending number of choices and ascending number of turns away from goal (Ordered
group). Chimpanzees in both groups performed equivalently, demonstrated fewer errors and a higher rate of self-correcting
errors with increasing experience at solving the mazes, and made significantly fewer errors than capuchin monkeys. Capuchins
were more sensitive to the mode of presentation than chimpanzees; monkeys in the Ordered group made fewer errors than monkeys
in the Random group. However, capuchins’ performance across testing changed little, and they remained particularly susceptible
to making errors when the correct path required moving away from the goal. Thus, these two species responded differently to
the same spatial challenges and same learning contexts. The findings indicate that chimpanzees have a strong advantage in
this task compared to capuchins, no matter how the task is presented. We suggest that differences between the species in the
dynamic organization of attention and motor processes contribute to their differences in performance on this task, and predict
similar differences in other tasks requiring, as this one does, sustained attention to a dynamic visual display and self-produced
movements variably towards and away from a goal. 相似文献
873.
This study aimed to evaluate the efficacy of BodyThink, a widely disseminated body image and self-esteem program. Participants were 277, grade 7 students from 4 secondary schools in Australia. The intervention group (62 girls, 85 boys) participated in BodyThink during four 50-min lessons, while the control group (65 girls, 65 boys) received their usual classes. All participants completed baseline, postintervention and 3-month follow-up questionnaires. For girls, the intervention group reported higher media literacy and lower internalization of the thin ideal compared to the control group. For boys, the intervention group reported higher media literacy and body satisfaction than the control group. Although some positive outcomes were observed, it would be valuable to find ways to enhance the impact of BodyThink, especially in light of its wide dissemination. Suggestions for improving BodyThink are presented. 相似文献
874.
Tamara J. Somers Julie C. Michael William M. P. Klein Andrew Baum 《Journal of genetic counseling》2009,18(4):339-349
Women with a limited family history of breast cancer may be interested in cancer genetics information although their objective
risk of breast cancer may not indicate routine referral to cancer genetics services. This study examined factors related to
interest and use of cancer genetics services in a community sample of women with a limited family history of breast cancer
(N = 187) who had no previous contact with cancer genetics services. Participants provided demographic information and ratings of perceived risk,
cancer distress, attitudes, and intentions to initiate cancer genetics services. Participants were given information about
a cancer genetics clinic that served women having concerns about their breast cancer risk. Women were contacted within 6 weeks
and 8 months following their study appointment. Six weeks following their study appointment, 25% of women had initiated cancer
genetics services. Eight months following their study appointment, 18% of women reported having completed a cancer genetics
service appointment. Baseline intentions independently predicted both initiation at 6 weeks and appointment at 8 months. Cancer
distress was positively associated with cancer genetics service initiation and appointment. Results suggest that some women
with a limited family history of breast cancer are interested in seeking out cancer genetics information. Women with a limited
family history of breast cancer may benefit from the availability of cancer genetics information provided through primary
healthcare settings. 相似文献
875.
During emerging adulthood, lesbian and gay (LG) adults must develop an identity within the social context of heterosexist
discrimination. Our specific aims were to examine differences by sexual orientation in depressive symptomatology and self-esteem
and explore the role of personal resources in explaining these aspects of psychological well-being. Data were analyzed on
306 participants in emerging adulthood who completed an online survey. LG individuals experienced higher depressive symptomatology
and lower self-esteem than heterosexuals, and variations in well-being were explained by personal mastery and social support.
The instability which characterizes emerging adulthood is likely compounded by the developmental challenges posed by heterosexism.
The formation of social relationships, coupled with personal mastery, appear to serve as protective resources during emerging
adulthood. 相似文献
876.
877.
Kevin E. Vowles Julie Loebach Wetherell John T. Sorrell 《Cognitive and behavioral practice》2009,16(1):49-58
Cognitive behavior therapy (CBT) for chronic pain is effective, although a number of issues in need of clarification remain, including the processes by which CBT works, the role of cognitive changes in the achievement of outcomes, and the formulation of a coherent theoretical model. Recent developments in psychology have attempted to address these issues by focusing specifically on processes of acceptance, present-focused awareness (e.g., mindfulness), and values-based action. The present study evaluated the effectiveness of Acceptance and Commitment Therapy (ACT), perhaps the most widely researched of these developing approaches. Initial evidence suggests that ACT-consistent treatments for chronic pain are effective, although there is a need to study treatment in more traditional pain-management settings, where treatment is generally time-limited, unidisciplinary, and outpatient. Data from two pilot studies are presented. Results support the feasibility of treatment and suggest that effectiveness rates compare favorably with more established forms of treatment, in this case, CBT. Although these data are preliminary, they set a foundation upon which more intensive evaluations can take place. 相似文献
878.
879.
Public support for government welfare programs is grounded in two potentially conflicting factors: a belief in individualism which undermines support for welfare assistance and the capacity for empathy which potentially enhances support. However, empathy is an expensive psychological commodity subject to pervasive up- and down-regulation. This article examines the degree to which a belief in individualism affects the expression of compassionate support for a person in need among those with the capacity for empathy. In two online survey experiments, empathic ability powerfully increases support for a welfare recipient and social welfare policies when it does not conflict with individualism. But, empathic ability decreases compassion and support for government welfare among strong individualists. Evidence that individualists down-regulate empathy for someone in need of government assistance is consistent with the conservative view that welfare promotes dependency and undermines individual agency. In contrast, charitable assistance is not associated with long-term dependency, and we find that empathy is up-regulated by strong individualists to generate charitable support for the same individual to whom they denied government assistance. The up- and down-regulation of empathy in response to someone in need of government welfare helps illuminate the sharp divisions over social welfare policy among the American public. 相似文献
880.
Many studies have shown that the most people are willing to pay to obtain an object often is significantly less than the least they will accept to relinquish the object (i.e., selling prices tend to be higher than buying prices). Most tests of the buying/selling price discrepancy have elicited values either for everyday market items (e.g., mugs, candy bars) or for environmental changes (e.g., a decrease in air quality, a landfill clean-up). The literature indicates a possible interaction between buying/selling prices and commodity type; buying/selling price differences seem greater for environmental improvements than for market items. In other words, people show more relative preference for environmental improvements in selling modes than they do in buying modes. A significant difference in preference due to elicitation mode is commonly termed a "preference reversal." The four experiments presented here establish this new preference reversal and examine the reasons for it. The results from these studies provide information about the nature of preference reversals, the valuation process as a whole, and the unique problem of valuing complex and risky items such as environmental changes. 相似文献