全文获取类型
收费全文 | 2889篇 |
免费 | 181篇 |
国内免费 | 1篇 |
出版年
2023年 | 23篇 |
2022年 | 29篇 |
2021年 | 44篇 |
2020年 | 98篇 |
2019年 | 103篇 |
2018年 | 133篇 |
2017年 | 136篇 |
2016年 | 140篇 |
2015年 | 101篇 |
2014年 | 100篇 |
2013年 | 364篇 |
2012年 | 176篇 |
2011年 | 161篇 |
2010年 | 95篇 |
2009年 | 82篇 |
2008年 | 100篇 |
2007年 | 111篇 |
2006年 | 108篇 |
2005年 | 98篇 |
2004年 | 83篇 |
2003年 | 98篇 |
2002年 | 71篇 |
2001年 | 46篇 |
2000年 | 54篇 |
1999年 | 39篇 |
1998年 | 39篇 |
1997年 | 34篇 |
1996年 | 22篇 |
1995年 | 27篇 |
1994年 | 21篇 |
1993年 | 22篇 |
1992年 | 19篇 |
1991年 | 28篇 |
1990年 | 13篇 |
1989年 | 22篇 |
1988年 | 16篇 |
1987年 | 15篇 |
1986年 | 12篇 |
1985年 | 12篇 |
1984年 | 19篇 |
1983年 | 20篇 |
1982年 | 17篇 |
1981年 | 18篇 |
1980年 | 9篇 |
1979年 | 15篇 |
1978年 | 16篇 |
1977年 | 11篇 |
1976年 | 15篇 |
1975年 | 8篇 |
1974年 | 5篇 |
排序方式: 共有3071条查询结果,搜索用时 15 毫秒
991.
A number of studies have investigated use of extreme (ERS) and acquiescent (ARS) response styles across cultural groups. However, due to within-group heterogeneity, it is important to also examine use of response styles, acculturation, and endorsement of cultural variables at the individual level. This study explores relationships between acculturation, six Mexican cultural factors, ERS, and ARS among a sample of 288 Mexican American telephone survey respondents. Three aspects of acculturation were assessed: Spanish use, the importance of preserving Mexican culture, and interaction with Mexican Americans versus Anglos. These variables were hypothesized to positively associate with ERS and ARS. Participants with higher Spanish use did utilize more ERS and ARS; however, value for preserving Mexican culture and interaction with Mexican Americans were not associated with response style use. In analyses of cultural factors, endorsement of familismo and simpatia were related to more frequent ERS and ARS, machismo was associated with lower ERS among men, and la mujer was related to higher ERS among women. Caballerismo was marginally associated with utilization of ERS among men. No association was found between la mujer abnegada and ERS among women. Relationships between male gender roles and ARS were nonsignificant. Relationships between female gender roles and ARS were mixed but trended in the positive direction. Overall, these findings suggest that Mexican American respondents vary in their use of response styles by acculturation and cultural factors. This usage may be specifically influenced by participants' valuing of and engagement with constructs directly associated with social behavior. 相似文献
992.
Previous research has suggested that the use of the fingers may play a functional role in the development of a mature counting system. However, the role of developmental vision in the elaboration of a finger numeral representation remains unexplored. In the current study, 14 congenitally blind children and 14 matched sighted controls undertook three different test batteries that examined (a) general cognitive abilities, (b) the spontaneous use of finger-counting and finger-montring strategies (where “finger-montring” is a term used to characterize the way people raise their fingers to show numerosities to other people), and (c) the canonicity level of the finger-counting and finger-montring habits. Compared with sighted controls, blind children used their fingers less spontaneously to count and in a less canonical way to count and show quantities. These results demonstrate that the absence of vision precludes the development of a typical finger numeral representation and suggest that the use of canonical finger-counting and finger-montring strategies relies on the visual recognition of particular hand shapes. 相似文献
993.
994.
Ash S McMillan C Gross RG Cook P Morgan B Boller A Dreyfuss M Siderowf A Grossman M 《Brain and language》2011,119(1):30-41
Narrative discourse is an essential component of day-to-day communication, but little is known about narrative in Lewy body spectrum disorder (LBSD), including Parkinson’s disease (PD), Parkinson’s disease with dementia (PDD), and dementia with Lewy bodies (DLB). We performed a detailed analysis of a semi-structured speech sample in 32 non-aphasic patients with LBSD, and we related their narrative impairments to gray matter (GM) atrophy using voxel-based morphometry. We found that patients with PDD and DLB have significant difficulty organizing their narrative speech. This was correlated with deficits on measures of executive functioning and speech fluency. Regression analyses associated this deficit with reduced cortical volume in inferior frontal and anterior cingulate regions. These findings are consistent with a model of narrative discourse that includes executive as well as language components and with an impairment of the organizational component of narrative discourse in patients with PDD and DLB. 相似文献
995.
Three studies assessed whether a common cultural practice, namely, the use of gender-exclusive language (e.g., using he to indicate he or she), is experienced as ostracism at the group level by women. Women responded to the use of gender-exclusive language (he) during a mock job interview with a lower sense of belonging, less motivation, and less expected identification with the job compared to others exposed to gender-inclusive (he or she) or gender-neutral ( one) language (Studies 1 and 2). Moreover, the more emotionally disengaged women became over the course of a job interview upon hearing gender-exclusive language, the less motivation and job identification they subsequently reported (Study 3). Together, these studies show that subtle linguistic cues that may seem trivial at face value can signal group-based ostracism and lead members of the ostracized group to self-select out of important professional environments. 相似文献
996.
Herbert JS 《Infant behavior & development》2011,34(4):632-635
Twelve- and 15-month-old infants who received simple verbal cues at encoding and retrieval exhibited superior representational flexibility on an imitation task compared to infants who did not receive those cues. Verbal cues can help early-verbal infants overcome perceptual dissimilarity and express knowledge in novel situations. 相似文献
997.
Lourdes P. Dale Emily A. O'Hara Rachel Schein Lorinn Inserra Julie Keen Marci Flores Stephen W. Porges 《Infant mental health journal》2011,32(4):473-486
This study investigated whether measures of infant temperament, regulatory disorders, and physiological reactivity and concurrent measures of family environment were predictors of child behavior problems at 54 months of age. The sample consisted of 23 children–mother dyads. The sample recruitment strategy emphasized testing both typical and fussy/difficult infants at 9 months of age. Children were categorized into low and high behavioral problem groups at 54 months of age. The children in the high behavioral problem group were more likely at 9 months to have been temperamentally difficult, to have been classified as regulatory disordered, and to have displayed respiratory sinus arrhythmia (RSA) regulation difficulties. These children also were more likely to come from families described as less cohesive and providing less focus on active/recreational activities when the children were 54 months old. A logistic regression analysis, including only the 9‐month infant measures (i.e., difficultness, regulatory disorders classification, and RSA regulation), resulted in a significant model with 100.0% accurate classification into high or low behavioral problem groups. Data suggest that infant measures of behavioral and physiological state regulation may be early indicators of child behavior problems, especially internalizing problems. 相似文献
998.
Children with Developmental Coordination Disorder (DCD) are more variable in timing their fingers to an external cue. In this study, we investigated the intrinsic coordination properties of self-selected anti-phase finger tapping with and without vision and audition in children with and without DCD and compared their performance to that of adults. Ten children with DCD (Mean age = 7.12 ± 0.3 years), 10 age- and sex-matched typically developing (TD) children, and 10 adults participated in this study. Participants tapped their fingers in anti-phase at a self-selected speed under four different sensory conditions: (1) with vision and audition, (2) with vision but no audition, (3) with audition but no vision, and (4) without vision and audition. We assessed intertap interval (ITI), variability of ITI, mean relative phasing (RP) between the fingers and the variability in RP. Children with DCD adopted a similar mean frequency, but were less accurate and more variable than the other groups. The different sensory conditions did not affect performance in any of the groups. We conclude that visual and auditory feedback of tapping are not salient information sources for bilateral self-selected tapping and that children with DCD are intrinsically less accurate and more variable in their tapping frequency and coordination. 相似文献
999.
The perceived dominance of percepts within a rival pair of images can be influenced by emotional content, with emotional images dominating over neutral images. We investigated this effect in the periphery. Rival gratings and (fearful or neutral) face/house pairs were viewed centrally and with the near edge positioned 1 degrees and 4 degrees from the fixation. Both fearful and neutral faces were perceived as dominant for significantly longer than houses, with fearful faces dominating for significantly longer than neutral faces at all three eccentricities. There was no difference between dominances at 1 degrees and 4 degrees eccentricity, and there was no difference in the dominance of the gratings at any eccentricity. Our findings show that face stimuli, and in particular fearful faces, continue to dominate perception in binocular rivalry even when viewed in the periphery. 相似文献
1000.
Culture specifies standards for women??s and men??s body appearance and display. In Western cultures, these standards are both concentrated and ubiquitous in the media, represented as gendered body ideals for citizens to aspire toward. Because gendered body ideals are revered, individuals try to construct and portray their body consistently with these ideals. Furthermore, because gendered body ideals are narrowly defined and restrictive, individuals constrict their behavior, relationships, and perceptions of themselves and others to fall within the parameters of these ideals. The third and final issue of this series showcases innovative studies within two streams. The first stream investigates the many ways individuals invest effort into constructing and/or portraying their body to fit the gendered body ideal. The second stream addresses the diverse ways internalization of these ideals constrict individuals?? relationships, freedoms, and perceptions of others?? bodies and lifestyles. We discuss the empirical articles alongside points raised in films by Jhally (2009) and Clark (2009) that emphasize how media portrayals of gendered body ideals foster body-related constructions and constrictions in viewers. We emphasize intersectionality when presenting the articles, recognizing that gender combines with multiple identities (e.g., sexual orientation, race, political affiliation, and age) as well as individual difference variables to mold the degree to which individuals construct and constrict themselves and others to fit gendered body ideals. We end with a discussion of how these articles can be used to generate social change by deconstructing and delegitimizing gendered body ideals. 相似文献