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81.
Raised-line drawings of familiar objects are very difficult to identify with active touch only. In contrast, haptically explored real 3-D objects are usually recognised efficiently, albeit slower and less accurately than with vision. Real 3-D objects have more depth information than outline drawings, but also extra information about identity (eg texture, hardness, temperature). Previous studies have not manipulated the availability of depth information in haptic object recognition whilst controlling for other information sources, so the importance of depth cues has not been assessed. In the present experiments, people named plastic small-scale models of familiar objects. Five versions of bilaterally symmetrical objects were produced. Versions varied only in the amount of depth information: minimal for cookie-cutter and filled-in outlines, partial for squashed and half objects, and full for 3-D models. Recognition was faster and much more accurate when more depth information was available, whether exploration was with both hands or just one finger. Novices found it almost impossible to recognise objects explored with two hand-held probes whereas experts succeeded using probes regardless of the amount of depth information. Surprisingly, plane misorientation did not impair recognition. Unlike with vision, depth information, but not object orientation, is extremely important for haptic object recognition. 相似文献
82.
Face aftereffects can provide information on how faces are stored by the human visual system (eg Leopold et al, 2001 Nature Neuroscience 4 89-94), but few studies have used robustly represented (highly familiar) faces. In this study we investigated the influence of facial familiarity on adaptation effects. Participants were adapted to a series of distorted faces (their own face, a famous face, or an unfamiliar face). In experiment 1, figural aftereffects were significantly smaller when participants were adapted to their own face than when they were adapted to the other faces (ie their own face appeared significantly less distorted than a famous or unfamiliar face). Experiment 2 showed that this 'own-face' effect did not occur when the same faces were used as adaptation stimuli for participants who were unfamiliar with them. Experiment 3 replicated experiment 1, but included a pre-adaptation baseline. The results highlight the importance of considering facial familiarity when conducting research on face aftereffects. 相似文献
83.
Various studies have found that viewing physical or relational aggression in the media can impact subsequent engagement in aggressive behavior. However, this has rarely been examined in the context of relationships. Accordingly, the aim of this study was to examine the connection between viewing various types of aggression in the media and perpetration of aggression against a romantic partner. A total of 369 young adults completed a variety of questionnaires asking for their perpetration of various forms of relationship aggression. Participants' exposure to both physical and relational aggression in the media was also assessed. As a whole, we found a relationship between viewing aggression in the media and perpetration of aggression; however, this depended on the sex of the participant and the type of aggression measured. Specifically, exposure to physical violence in the media was related to engagement in physical aggression against their partner only for men. However, exposure to relational aggression in the media was related to romantic relational aggression for both men and women. 相似文献
84.
How does mindfulness-based cognitive therapy work? 总被引:1,自引:0,他引:1
Willem Kuyken Ed Watkins Kat White Sarah Byford Sholto Radford Tim Dalgleish 《Behaviour research and therapy》2010,48(11):1105-1112
Mindfulness-based cognitive therapy (MBCT) is an efficacious psychosocial intervention for recurrent depression (
[Kuyken et?al., 2008],
[Ma and Teasdale, 2004] and [Teasdale et?al., 2000]). To date, no compelling research addresses MBCT’s mechanisms of change. This study determines whether MBCT’s treatment effects are mediated by enhancement of mindfulness and self-compassion across treatment, and/or by alterations in post-treatment cognitive reactivity. The study was embedded in a randomized controlled trial comparing MBCT with maintenance antidepressants (mADM) with 15-month follow-up (Kuyken et al., 2008). Mindfulness and self-compassion were assessed before and after MBCT treatment (or at equivalent time points in the mADM group). Post-treatment reactivity was assessed one month after the MBCT group sessions or at the equivalent time point in the mADM group. One hundred and twenty-three patients with ≥3 prior depressive episodes, and successfully treated with antidepressants, were randomized either to mADM or MBCT. The MBCT arm involved participation in MBCT, a group-based psychosocial intervention that teaches mindfulness skills, and discontinuation of ADM. The mADM arm involved maintenance on a therapeutic ADM dose for the duration of follow-up. Interviewer-administered outcome measures assessed depressive symptoms and relapse/recurrence across 15-month follow-up. Mindfulness and self-compassion were measured using self-report questionnaire. Cognitive reactivity was operationalized as change in depressive thinking during a laboratory mood induction.MBCT’s effects were mediated by enhancement of mindfulness and self-compassion across treatment. MBCT also changed the nature of the relationship between post-treatment cognitive reactivity and outcome. Greater reactivity predicted worse outcome for mADM participants but this relationship was not evident in the MBCT group.MBCT’s treatment effects are mediated by augmented self-compassion and mindfulness, along with a decoupling of the relationship between reactivity of depressive thinking and poor outcome. This decoupling is associated with the cultivation of self-compassion across treatment. 相似文献
85.
Jens H. Hellmann Gerald Echterhoff René Kopietz Sarah Niemeier Amina Memon 《European journal of social psychology》2011,41(5):658-671
Communicators' tuning of a message about a social target to their audience's evaluation can shape their representation of the target. This audience‐tuning effect has been demonstrated with ambiguous text passages as input material. We examined whether the effect also occurs when communicators learn about the target's behaviours from visual (nonverbal) input material. In Experiment 1, participants watched a soundless video depicting ambiguous behaviours of a target, described the video to an audience who liked (vs. disliked) the target, and subsequently recalled the video. Both message and recall were biased towards the audience's judgement. In Experiment 2, the video depicted a forensically relevant event, specifically ambiguous behaviours of two persons involved in a bar brawl. Participants tuned their event retellings to their audience's responsibility judgement and remembered the event accordingly. In both experiments, the effect of the audience's judgement on recall was statistically mediated by the extent to which the message was tuned to the audience. The more participants experienced a shared reality with their audience the stronger was the message‐recall correlation (Experiment 2). We conclude that the audience‐tuning effect for visually perceived information depends on the communicators' creation of a shared reality with their audience. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
86.
The current study investigated the relationship between cognitive rumination and state body image distress using an experimental design. Specifically, the study examined whether participants induced to ruminate about an imagined negative body image event would report more body image dissatisfaction and anxiety compared to those induced to distract themselves. Ninety-nine undergraduate women completed two measures to assess depressive symptomology and baseline body image distress. All participants then silently read a body image scenario intended to evoke negative emotions. After reading the scenario, participants were randomized into one of two conditions, rumination or distraction, and were then re-administered the self-report measures. Statistical analyses revealed that the rumination group reported more state body image dissatisfaction and anxiety after the manipulation. The findings provide preliminary support for the hypothesis that a ruminative response style, specifically within a body image domain, predicts body image dissatisfaction and anxiety. 相似文献
87.
Miles SJ Minda JP 《Journal of experimental psychology. Learning, memory, and cognition》2011,37(3):588-607
Current theories of category learning posit separate verbal and nonverbal learning systems. Past research suggests that the verbal system relies on verbal working memory and executive functioning and learns rule-defined categories; the nonverbal system does not rely on verbal working memory and learns non-rule-defined categories (E. M. Waldron & F. G. Ashby, 2001; D. Zeithamova & W. T. Maddox, 2006). However, relatively little research has explored the importance of visual working memory or visual processing for either system. The authors investigated the role of working memory (Experiment 1a and 1b), visual processing (Experiment 2), and executive functioning for each system, using a concurrent task methodology. It was found that visual tasks with high executive functioning demands and verbal tasks with high or low executive demands disrupted rule-defined learning, whereas any visual task, regardless of executive functioning demand, disrupted non-rule-defined learning. Taken together, these results confirm the importance of verbal working memory and executive functioning for the verbal system and provide new evidence for the importance of visual processing for the nonverbal system. These results help to clarify understanding of the nonverbal system and have implications for multiple systems theories of category learning (F. G. Ashby, L. A. Alfonso-Reese, A. U. Turken, & E. M. Waldron, 1998). 相似文献
88.
Pubic hair removal is common in college age men and women in the United States and Australia. The present research addresses two questions related to this practice: (1) Are objectification and body shape concerns related to pubic hair removal; and (2) Do these relationships differ by gender? U.S. undergraduates, 148 women and 76 men, completed questionnaires about the presence, frequency of, and reasons for pubic hair removal; self-objectification, including self-surveillance and body shame; self-consciousness in sexual situations; and drives for leanness, thinness, and muscularity. While both genders reported similar rates of pubic hair removal, women reported greater frequency and higher normative, sexiness, and cleanliness reasons for pubic hair removal. Normative and sexiness reasons were positively correlated with self-surveillance. The relationships among normative and sexiness reasons and self-objectification were significantly higher for women with women??s body shame and self-surveillance scores more strongly impacted by normative and sexiness reasons. Findings are interpreted within the framework of objectification theory. 相似文献
89.
Sarah J. Erbaugh 《Human movement science》1986,5(4)
This research examined the relationship between body size and mass and the performance of 3- to 6-year-old children (n=117) on two categories of swimming tasks: Locomotion: Front and Locomotion: Back. The major hypothesis was that body size and mass measurements would be good predictors of children's swimming performance. The function of age/gender also was examined. Stepwise multiple regression was used to select the best predictors of swimming performance after controlling for amount of aquatic training and child's apprehensiveness about water. Body weight was the best predictor of children's swimming performance on each category of tasks (p<0.01). It accounted for at least 16% of performance variation when entered alone, and it accounted for 5% given age. Age was of little importance after body size and mass were taken into account. The major conclusion was that future research should incorporate more complex research designs to account for the network of influencing factors. 相似文献
90.
In the present study, we examined alcohol consumption and alcohol problems between managerial and nonmanagerial men and women.
We also examined alcohol problems as a function of drinking context (i.e., when they drink and with whom they drink) for each
of these four groups. Survey data and data from company records were collected from a large sample of blue and white collar
employees (n = 2279). Participants completed a detailed questionnaire aimed at assessing many work-related attitudes, general mental and
physical health-related perceptions, motivations for alcohol use, alcohol consumption indices, and alcohol problems. We found
that several of the demographic variables differentially predicted alcohol consumption and problems for the four groups. In
addition, drinking alone and immediately after work were associated with alcohol problems for women managers at a significantly
higher rate than for the other groups of employees. These results support the assertion that more complex models are needed
to understand the linkages between work and alcohol use.
The research reported in this paper was supported by Grant AA 10690-02, National Institute of Alcohol Abuse and Alcoholism,
National Institutes of Health. 相似文献