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741.
Predictors of attrition from individual parent–child interaction therapy were examined for 99 families of preschoolers with disruptive behavior disorders. Seventy-one percent of treatment dropouts were identified by lower SES, more maternal negative talk, and less maternal total praise at pretreatment. Following PCIT, families were randomly assigned to an Assessment-Only or Maintenance Treatment condition. Higher maternal distress predicted 63% of dropouts in the Assessment-Only condition. Lower maternal intellectual functioning predicted 83% of dropouts from Maintenance Treatment. Findings highlight a continuing need for evidence-based retention strategies at various phases of engagement in PCIT. This study was funded by the National Institute of Mental Health (RO1 MH60632). We thank the members of the UF Child Study Laboratory for their contributions to this study.  相似文献   
742.
In this study, we investigated the scalp recorded event-related potential (ERP) responses related to visual awareness. A backward masking procedure was performed while high-density EEG recordings were carried out. Subjects were asked to detect a familiar face, presented at durations that varied parametrically between 16 and 266 ms. ERPs were computed and awareness was assessed using a sensitivity measure from signal detection theory (d'). Modifications in the electrical scalp topographies were found to reflect visual awareness of the stimulus. In particular, an early map topography was found to emerge progressively around 230 ms, showing a pattern of increase similar to the measure of visual awareness. This was followed by an increase in duration of a second, P300-like map. Source localisation for the early awareness-related topography revealed the activation of a distributed network of brain areas including frontal and temporo-occipital regions. Our results suggest that conscious experience emerges in parallel with the activation of a specific neural network that occurs in a time window beginning from about 200 ms.  相似文献   
743.
Williams Syndrome (WS) is a rare neurodevelopmental disorder, which stems from a genetic deletion on chromosome 7 and causes a profound weakness in visuospatial cognition. Our current study explores how orientation perception may contribute to the visuospatial deficits in WS. In Experiment 1, we found that WS individuals and normal 3–4 year olds had similar orientation discrimination thresholds and had similar prevalence of mirror-reversal errors for diagonal targets (±45 deg). In Experiment 2, we asked whether this immaturity in orientation discrimination would also be reflected in a task requiring integration of oriented elements. We found that sensitivities of WS individuals for detecting orientation-defined contours were higher than sensitivities of normal 3–4 year olds, and were not significantly different from sensitivities of normal adults. Together, these results suggest that orientation discrimination and orientation integration have different maturational trajectories in normal development and different susceptibilities to damage in WS. These may reflect largely separate visuospatial mechanisms.  相似文献   
744.
Children and adults were tested on a forced‐choice face recognition task in which the direction of eye gaze was manipulated over the course of the initial presentation and subsequent test phase of the experiment. To establish the effects of gaze direction on the encoding process, participants were presented with to‐be‐studied faces displaying either direct or deviated gaze (i.e. encoding manipulation). At test, all the faces depicted persons with their eyes closed. To investigate the effects of gaze direction on the efficiency of the retrieval process, a second condition (i.e. retrieval manipulation) was run in which target faces were presented initially with eyes closed and tested with either direct or deviated gaze. The results revealed the encoding advantages enjoyed by faces with direct gaze was present for both children and adults. Faces with direct gaze were also recognized better than faces with deviated gaze at retrieval, although this effect was most pronounced for adults. Finally, the advantage for direct gaze over deviated gaze at encoding was greater than the advantage for direct gaze over deviated gaze at retrieval. We consider the theoretical implications of these findings.  相似文献   
745.
746.
We integrated findings from 35 recent, longitudinal studies of the onset of heterosexual intercourse. Correlates of adolescent sexual intercourse onset, whether in early (before age 16) or middle (ages 16–18) adolescence, included living with other than two biological parents, being less monitored by parents, having more advanced physical maturity and more involvement in dating behavior, and having more permissive attitudes toward sex. When studies were organized by age of participants, the onset of intercourse was more strongly associated with alcohol use, delinquency, school problems and (for girls) depressive symptoms in Early studies (sexual intercourse by age 15 or before only) than was found in studies classified as Middle (assessment of sexual intercourse up to age 18) or Late (knowledge of those who delayed until after age 18). Although more research is needed, additional factors were associated with delaying first sexual intercourse until after age 18, including religious attitudes and anxiety, with some factors more relevant for girls and some more applicable to boys. In total, the evidence suggests there are many similarities, but also some important differences, in the correlates associated with early versus middle versus later onset of sexual intercourse. This seems to signify more than one pathway (set of distal and proximal correlates) associated with sexual behavior during adolescence that should be tested in future research. Throughout the review, we highlight differences in the correlates of girls’ versus boys’ sexual intercourse and how race/ethnicity moderates associations. These gender and racial/ethnic differences were found largely in analyses of family processes, school and religion, and parent education. We end by summarizing several priority areas for future research.  相似文献   
747.
Attention and interpretation biases for threat stimuli were assessed in 19 anxious (ANX) children before and after cognitive behavioural therapy (CBT), and compared with responses from 19 non-anxious (NA) control children collected over the same period. Attentional bias was assessed using a picture version of the visual probe task with threat, neutral and pleasant pictures. Threat interpretation bias was assessed using both a homographs task in which children used homograph words in a sentence and their neutral or threatening meaning was assessed, and a stories task in which children rated their negative emotion, danger judgments, and influencing ability in ambiguous situations. ANX children showed attention biases towards threat on the visual probe task and threat interpretation biases on the stories task but not the homographs task at pre-treatment in comparison with NA children. Following treatment, ANX children's threat interpretation biases as assessed on the stories task reduced significantly to within levels comparable to NA children. However, ANX children continued to show larger attentional biases towards threat than pleasant pictures on the visual probe task at post-treatment, whereas NA children did not show attentional biases. Moreover, a residual threat interpretation style on the stories task at post-treatment was associated with higher anxiety symptoms in both ANX and NA children.  相似文献   
748.
The smoking behavior of friends is a major risk factor for adolescent smoking uptake. To explore the social context of smoking experimentation and consolidation with a particular focus on friends, the authors interviewed both members of 14 young adult identical twin pairs who were discordant for smoking. The different smoking status of twins was connected to their different friendship groups and development of different identities. Smoking respondents gravitated to the behaviors and images of the peer group who smoked. Many nonsmokers felt strong pressure from their peers not to smoke and spoke about how the images conveyed by smoking were inconsistent with their peer group's image. Adolescents and young adults are aware of the messages that smoking can convey to others and exploit these images to construct a social identity.  相似文献   
749.
When people make decisions, they often prefer to receive information that supports rather than conflicts with their decision. To date, this effect has mainly been investigated in the context of decisions about gains, whereas decisions about losses have received less attention. Based on Prospect Theory, we expected information search to be differently affected by whether people previously have decided about gains or losses. Three studies have revealed that selectivity of information search is stronger after gain-framed rather than after loss-framed decision problems. An investigation of the underlying psychological processes revealed that gain decisions are made with increased subjective decision certainty (i.e. they are easier and less effortful to make), which in turn systematically increases confirmatory information search.  相似文献   
750.
Terror management research has shown that mortality salience (MS) leads to increased support and defense of cultural ingroups and their norms (i.e., worldview defense, WD). The authors investigated whether these effects can be understood as efforts to restore a generalized sense of control by strengthening one's social ingroup. In Studies 1-3, the authors found that WD was only increased following pure death salience, compared with both dental pain salience and salience of self-determined death. As both the pure death and the self-determined death conditions increased accessibility of death-related thoughts (Study 4), these results do not emerge because only the pure death induction makes death salient. At the same time, Study 5 showed that implicitly measured control motivation was increased in the pure death salience condition but not under salience of both self-determined death and dental pain. Finally, in Study 6, the authors manipulated MS and control salience (CS) independently and found a main effect for CS but not for MS on WD. The results are discussed with regard to a group-based control restoration account of terror management findings.  相似文献   
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