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71.
R B Payne 《Perceptual and motor skills》1989,68(2):455-461
Previously reported data on mirror tracking were reexamined for time-of-day (TOD) effects on performance and for the interaction of these effects with sex and practice effects. Analyses showed a significant linear decline of mean score from 0900 through 1300 hours, a sharp postlunch recovery at 1400 hours, and another significant linear decline from 1400 through 1700 hours. These effects were orthogonal to sex and practice effects. Discussion emphasized the importance of control for time of day in experimental design and suggested several hypotheses about the decremental effects of time of day. 相似文献
72.
This study examined the hypothesis that male dominance in the acquisition and performance of rotary pursuit skill reflects a lower male proclivity for the generation and accumulation of reactive inhibition rather than some innately superior ability to profit from practice. On this hypothesis, the magnitude of male dominance should decline as the length of the intertrial interval increases. The experimental sample consisted of 120 Caucasian subjects (60 of each sex) who were given sixty 30-sec trials on rotary pursuit with intertrial intervals ranging from 0 to 40 sec. The principal finding was that the magnitude of the sex difference depended significantly upon the length of the intertrial interval, as hypothesized. When the interval was 10 sec or longer, performance levels of the sexes were essentially equal. The sex variance was reduced to insignificance even on the first trial when allowance was made for the inhibitory effect of practice. Thus, male dominance in rotary pursuit skill appears to be a procedural effect mediated by and inhibitory mechanism rather than a consequence of differential endowments of learning ability. 相似文献
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Subjects studied a mixed list of 70 words that varied in imagery value and then received three successive tests. Also varied were instructions given to subjects prior to list presentation (imagery or semantic rehearsal) and the type of recall test (standard free recall, an uninhibited-recall procedure in which subjects were encouraged to free associate and to guess while recalling the list, and a forced-recall condition in which they were also told to write a large number of responses to fill the allotted spaces). Recall improved across the three tests in all conditions, but the improvement was greater for high-than for low-imagery words. In addition, hypermnesia (the improved recall across tests) was shown to occur following semantic rehearsal instructions as well as imagery instructions and to occur with low-imagery words, contrary to the imagery hypothesis of the effect. Most importantly, the large variation in recall criterion produced by manipulating instructions at test (as measured by intrusions) did not affect the overall level of correct recall or the magnitude of improvements across tests. Apparently, the assumption of generate-recognize theories that people generate much more information in free recall than they produce (due to a stringent criterion for recognition of the generated material) is false. 相似文献
78.
Emotional information is often remembered better than neutral information, but this enhancement can come at the cost of memory for non-emotional stimuli presented alongside emotionally salient items. Two encoding-related factors have been proposed to influence the magnitude of this trade-off: The intensity of the affective response to the scenes (which increases the trade-off) and the cognitive control exerted to process the scenes (which decreases the trade-off). The present study examined the relative importance of these two factors by assessing the effect of cognitive reappraisal on the magnitude of the trade-off effect. Cognitive reappraisal refers to the implementation of cognitive strategies to assist a person in changing the intensity of their response to an experience. Thus, reappraisal provides a way to assess both of the factors that are important for the elicitation of the trade-off. The results revealed that when participants were asked to view the scenes, without cognitive reappraisal, a robust memory trade-off occurred. But, when participants were asked to either heighten or decrease their emotional reactions via reappraisal, there was a reduction in the magnitude of the trade-off. These results suggest that the cognitive process of reappraising the scenes is sufficient to reduce the trade-off effect, even when such processing leads to an intensified affective response. 相似文献
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Anita K. Chisholm Vicki A. Anderson Natalie A. Pride Stephanie Malarbi Kathryn N. North Jonathan M. Payne 《Neuropsychology review》2018,28(3):317-340
In light of the proliferation of recent research into social function in neurofibromatosis type 1 (NF1), a systematic review and meta-analysis is required to synthesise data and place findings within the context of a theoretical framework. This paper reviews findings from research into social function and autism spectrum disorder (ASD) in children and adults with NF1 and integrates these findings with the Socio-Cognitive Integration Abilities Model (SOCIAL). It also critically appraises links between social outcomes, internal and external factors moderating social functioning, cognitive domains implicated in social functioning, and underlying neural pathology in NF1. A systematic literature search conducted in MedLine (Ovid), PsycINFO (Ovid), Embase (Ovid), and PubMed electronic databases yielded 35 papers that met inclusion criteria for the systematic review. Out of these papers, 22 papers provided sufficient data for meta-analysis. Findings from this review and meta-analysis provide evidence that children and adults with NF1 exhibit significantly higher prevalence and severity of social dysfunction and ASD symptomatology. To date, very few studies have examined social cognition in NF1 but results indicate the presence of both perceptual and higher-level impairments in this population. The results of this review also provide support for age, gender, and comorbid ADHD as moderating factors for social outcomes in NF1. Suggestions for future research are offered to further our understanding of the social phenotype in NF1 and to facilitate the development of targeted interventions. 相似文献