全文获取类型
收费全文 | 528篇 |
免费 | 29篇 |
出版年
2023年 | 4篇 |
2021年 | 3篇 |
2020年 | 5篇 |
2019年 | 9篇 |
2018年 | 11篇 |
2017年 | 21篇 |
2016年 | 16篇 |
2015年 | 8篇 |
2014年 | 10篇 |
2013年 | 61篇 |
2012年 | 25篇 |
2011年 | 25篇 |
2010年 | 19篇 |
2009年 | 20篇 |
2008年 | 28篇 |
2007年 | 29篇 |
2006年 | 22篇 |
2005年 | 15篇 |
2004年 | 11篇 |
2003年 | 11篇 |
2002年 | 11篇 |
2001年 | 6篇 |
2000年 | 9篇 |
1999年 | 9篇 |
1998年 | 7篇 |
1997年 | 11篇 |
1996年 | 4篇 |
1995年 | 5篇 |
1994年 | 8篇 |
1993年 | 3篇 |
1992年 | 9篇 |
1991年 | 5篇 |
1990年 | 8篇 |
1989年 | 4篇 |
1988年 | 3篇 |
1986年 | 4篇 |
1985年 | 7篇 |
1984年 | 3篇 |
1983年 | 5篇 |
1981年 | 7篇 |
1979年 | 9篇 |
1978年 | 6篇 |
1977年 | 5篇 |
1976年 | 5篇 |
1975年 | 7篇 |
1974年 | 5篇 |
1973年 | 3篇 |
1972年 | 3篇 |
1968年 | 8篇 |
1966年 | 3篇 |
排序方式: 共有557条查询结果,搜索用时 15 毫秒
481.
Dan J. Miller Kerry A. McBain Wendy W. Li Peter T. F. Raggatt 《Personal Relationships》2019,26(1):93-113
Pornography use, preference for “porn‐like” sex, masturbation, and sexual and relationship satisfaction were assessed among two samples of men (NStudy 1 = 326, NStudy 2 = 335). Frequent pornography use was associated with sexual dissatisfaction, greater preference for porn‐like sex, and more frequent masturbation in both studies. Pornography use was associated with relationship dissatisfaction in Study 2 only. The data did not support the notion that pornography negatively impacts sexual or relationship satisfaction via preference for porn‐like sex. In fact, it may bolster sexual satisfaction by promoting sexual variety. The data were consistent with a model in which pornography negatively, indirectly affects sexual and relationship satisfaction via masturbation frequency. Pornography use may have multiple opposing influences on sexual satisfaction. 相似文献
482.
Dominic Appiah Wilson Ozuem Kerry E. Howell Geoff Lancaster 《Journal of Consumer Behaviour》2019,18(6):463-473
Brand loyalty literature has mainly focused on how brands perform under normal market conditions. As the business environment grows more complex, globalised, and innovative, market disruptions become more prevalent. Taking a cognition‐based approach, this paper proposes that customers identify with brands to satisfy self‐definitional needs. A social constructivist perspective, using an inductive and case study strategy, was used. Data generation was based on purposeful sampling, and participants were chosen on the basis of their “lived” experience with the use of smartphones. Four major themes were identified in the purchase of smartphones: identity, satisfaction, brand loyalty, and brand switching. Participants' views suggested that this provides them with a sense of purpose and meaning, defining who they are and why they behave in specified ways in society, which increases their self‐esteem. Brand switching occurs when customers are motivated to review available alternatives in the marketplace due to a change in competitive activities. Socially, switching occurs when a customer's belief in a brand is externally influenced within the social setting. When the boundary between the “in‐group” and the “out‐group” is impermeable and changing, group membership is not realistic; social mobility is not a viable strategy to cope with identity threats. 相似文献
483.
484.
Thomas N. Crawford W. John Livesley Kerry L. Jang Phillip R. Shaver Patricia Cohen Jody Ganiban 《欧洲人格杂志》2007,21(2):191-208
This study used 239 twin pairs from a volunteer community sample to investigate how anxious and avoidant attachment are related to personality disorder (PD). Factor analysis showed that self‐reported anxious attachment and 11 PD scales from the Dimensional Assessment of Personality Problems loaded onto one factor (emotional dysregulation), and avoidant attachment and four PD scales loaded onto a second factor (inhibitedness). Biometric models indicated that 40% of the variance in anxious attachment was heritable, and 63% of its association with corresponding PD dimensions was attributable to common genetic effects. Avoidant attachment was influenced by the shared environment instead of genes. Correlations between avoidance and corresponding PD dimensions were attributable to experiences in the nonshared environment that influenced both variables. Copyright © 2006 John Wiley & Sons, Ltd. 相似文献
485.
Differential regional expression of brain-derived neurotrophic factor following olfactory fear learning 下载免费PDF全文
Jones SV Stanek-Rattiner L Davis M Ressler KJ 《Learning & memory (Cold Spring Harbor, N.Y.)》2007,14(12):816-820
We examined brain-derived neurotrophic factor (BDNF) mRNA expression across the olfactory system following fear conditioning. Mice received 10 pairings of odor with footshock or equivalent unpaired odors and shocks. We found increased BDNF mRNA in animals receiving paired footshocks in the multiple regions examined including the posterior piriform cortex (PPC) and basolateral amygdala (BLA). This was in contrast to the unpaired and odor-alone treatments, where BDNF mRNA was increased in the olfactory bulb (OB) and anterior piriform cortex (APC) only, but not the higher olfactory areas. We propose that odor exposure increases expression of BDNF in the OB and APC while the PPC and BLA increase BDNF mRNA only when associative learning occurs. 相似文献
486.
Almonte AG Hamill CE Chhatwal JP Wingo TS Barber JA Lyuboslavsky PN David Sweatt J Ressler KJ White DA Traynelis SF 《Neurobiology of learning and memory》2007,88(3):295-304
The roles of serine proteases and protease activated receptors have been extensively studied in coagulation, wound healing, inflammation, and neurodegeneration. More recently, serine proteases have been suggested to influence synaptic plasticity. In this context, we examined the role of protease activated receptor 1 (PAR1), which is activated following proteolytic cleavage by thrombin and plasmin, in emotionally motivated learning. We were particularly interested in PAR1 because its activation enhances the function of NMDA receptors, which are required for some forms of synaptic plasticity. We examined several baseline behavioral measures, including locomotor activity, expression of anxiety-like behavior, motor task acquisition, nociceptive responses, and startle responses in C57Bl/6 mice in which the PAR1 receptor has been genetically deleted. In addition, we evaluated learning and memory in these mice using two memory tasks, passive avoidance and cued fear-conditioning. Whereas locomotion, pain response, startle, and measures of baseline anxiety were largely unaffected by PAR1 removal, PAR1-/- animals showed significant deficits in a passive avoidance task and in cued fear conditioning. These data suggest that PAR1 may play an important role in emotionally motivated learning. 相似文献
487.
Richardson MJ Marsh KL Isenhower RW Goodman JR Schmidt RC 《Human movement science》2007,26(6):867-891
The current study investigated the interpersonal coordination that occurred between two people when sitting side-by-side in rocking chairs. In two experiments participant pairs rocked in chairs that had the same or different natural periods. By instructing pairs to coordinate their movements inphase or antiphase, Experiment 1 investigated whether the stable patterns of intentional interpersonal coordination were consistent with the dynamics of within person interlimb coordination. By instructing the participants to rock at their own preferred tempo, Experiment 2 investigated whether the rocking chair movements of visually coupled individuals would become unintentionally coordinated. The degree to which the participants fixated on the movements of their co-actor was also manipulated to examine whether visual focus modulates the strength of interpersonal coordination. As expected, the patterns of coordination observed in both experiments demonstrated that the intentional and unintentional interpersonal coordination of rocking chair movements is constrained by the self-organizing dynamics of a coupled oscillator system. The results of the visual focus manipulations indicate that the stability of a visual interpersonal coupling is mediated by attention and the degree to which an individual is able to detect information about a co-actor's movements. 相似文献
488.
Bounds are established for log odds ratios (log cross-product ratios) involving pairs of items for item response models. First,
expressions for bounds on log odds ratios are provided for one-dimensional item response models in general. Then, explicit
bounds are obtained for the Rasch model and the two-parameter logistic (2PL) model. Results are also illustrated through an
example from a study of model-checking procedures. The bounds obtained can provide an elementary basis for assessment of goodness
of fit of these models.
Any opinions expressed in this publication are those of the authors and not necessarily those of the Educational Testing Service.
The authors thank Dan Eignor, Matthias von Davier, Lydia Gladkova, Brian Junker, and the three anonymous reviewers for their
invaluable advice. The authors gratefully acknowledge the help of Kim Fryer with proofreading. 相似文献
489.
Prosodic information in the speech signal carries information about linguistic structure as well as emotional content. Although children are known to use prosodic information from infancy onward to assist linguistic decoding, the brain correlates of this skill in childhood have not yet been the subject of study. Brain activation associated with processing of linguistic prosody was examined in a study of 284 normally developing children between the ages of 5 and 18 years. Children listened to low-pass filtered sentences and were asked to detect those that matched a target sentence. fMRI scanning revealed multiple regions of activation that predicted behavioral performance, independent of age-related changes in activation. Likewise, age-related changes in task activation were found that were independent of differences in task accuracy. The overall pattern of activation is interpreted in light of task demands and factors that may underlie age-related changes in task performance. 相似文献
490.
Gahl S Menn L Ramsberger G Jurafsky DS Elder E Rewega M Audrey LH 《Brain and cognition》2003,53(2):223-228
This study investigates three factors that have been argued to define "canonical form" in sentence comprehension: Syntactic structure, semantic role, and frequency of usage. We first examine the claim that sentences containing unaccusative verbs present difficulties analogous to those of passive sentences. Using a plausibility judgment task, we show that a mixed group of aphasics performed significantly better on unaccusatives than on passives. We then turn to the observation that passives are generally harder than actives for aphasics. We show that this effect is modulated by lexical bias, i.e., the likelihood that a verb appears in a given syntactic structure: Passives of passive-bias verbs were significantly easier than passives of active-bias verbs. More generally, sentences whose structure matches the lexical bias of the main verb are significantly easier than sentences in which structure and lexical bias do not match. These findings suggest that "canonical form" reflects frequency and lexical biases. 相似文献