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71.
There have been relatively few studies on the relationship between recent perceived environmental stress and cognitive performance, and the existing studies do not control for state anxiety during the cognitive testing. The current study addressed this need by examining recent self-reported environmental stress and divided attention performance, while controlling for state anxiety. Fifty-four university undergraduates who self-reported a wide range of perceived recent stress (10-item perceived stress scale) completed both single and dual (simultaneous auditory and visual stimuli) continuous performance tests. Partial correlation analysis showed a statistically significant positive correlation between perceived stress and the auditory omission errors from the dual condition, after controlling for state anxiety and auditory omission errors from the single condition (r = 0.41). This suggests that increased environmental stress relates to decreased divided attention performance in auditory vigilance. In contrast, an increase in state anxiety (controlling for perceived stress) was related to a decrease in auditory omission errors from the dual condition (r = - 0.37), which suggests that state anxiety may improve divided attention performance. Results suggest that further examination of the neurobiological consequences of environmental stress on divided attention and other executive functioning tasks is needed. 相似文献
72.
Two experiments examined whether video game expertise transfers to performance on measures of spatial ability. In Experiment 1, skilled Tetris players outperformed non‐Tetris players on mental rotation of shapes that were either identical to or very similar to Tetris shapes, but not on other tests of spatial ability. The pattern of performance on those mental rotation tasks revealed that skilled Tetris Players used the same mental rotation procedures as non‐Tetris players, but when Tetris shapes were used, they executed them more quickly. In Experiment 2, non‐Tetris players who received 12 hours of Tetris‐playing experience did not differ from matched control students in pretest‐to‐posttest gains on tests of spatial ability. However, Tetris‐experienced participants were more likely to use an alternative type of mental rotation for Tetris shapes than were Tetris‐inexperienced participants. The results suggest that spatial expertise is highly domain‐specific and does not transfer broadly to other domains. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献
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74.
Andrew Sims 《Philosophical explorations》2019,22(1):16-32
Libertarians about free will sometimes argue for their position on the grounds that our phenomenology of action is such that determinism would need to be false for it to be veridical. Many, however, have thought that it would be impossible for us to have an experience that is in contradiction with determinism, since this would require us to have perceptual experience of metaphysical facts. In this paper I show how the libertarian claim is possible. In particular, if experience depicts the world such that there is more than one physically possible future, then determinism would need to be false for that experience to be veridical. I show that we have experiences, or perceptual episodes, of this kind on the basis of recent work in the study of perception. Theorists in this area have argued that we have vision-for-action, and that what we visually perceive are not just objects but also possibilities for action. If we experience that it is possible that we ?, then we also experience that it is possible that we not ?. Furthermore, we probably experience more than one possibility for action at any one moment. I argue that these are physical possibilities, and therefore that we experience the world such that there is more than one physically possible future. So the libertarian claim about the semantics of agential phenomenology is highly plausible, even if this does not entail libertarianism. 相似文献
75.
Rebecca Allen-Burge Louis D. Burgio Michelle S. Bourgeois Richard Sims Jennifer Nunnikhoven 《Journal of Clinical Geropsychology》2001,7(3):213-230
In this preliminary, intrasubject study (N = 8), we examined the effects of communication skills training and the use of memory books by Nursing Assistants (NAs) on the social ecology of a nursing home. Through inservice and on-the-job training, NAs were taught to use communication skills and memory books during their interactions with residents with mild to moderate cognitive impairment (Mini Mental Status Examination, M = 16.25), but relatively intact communication abilities. An abbreviated staff motivational system called Behavioral Supervision (Burgio and Burgio, 1990. Int. J. Aging Hum. Deve. 30: 287–302.) was attempted to encourage performance of these skills on the nursing units. Results showed that, regardless of sporadic implementation of the intervention by nursing staff, the intervention improved communication between staff and residents during care routines, increased the amount of time other residents and visitors spent talking with target residents, and increased the rate of positive statements made by the target residents and others in their immediate environment. Results are discussed in terms of limitations of the staff motivational system and modifications made to the system in a larger ongoing intervention trial. 相似文献
76.
The time budgets of a population of youth provide important information about their daily experience and socialization. This study reports data on the time budgets of a sample of 253 urban African American poor to working- and middle-class 5th-8th graders in Chicago. These youth were found to spend less time in school than other postindustrial adolescent populations, but spent no less time doing homework than White suburban U.S. young adolescents. They spent large quantities of time at home and with their families--at rates comparable to rates for young adolescents in a society with collectivist values like India. Unlike with other populations, early adolescence was not associated with major age changes in time allocations. Amount of time in schoolwork did not differ by grade, and amount of time with family did not show the decline with age that has been found for European American suburban adolescents. 相似文献
77.
Alicia Doyle Lynch Rebekah Levine Coley Jacqueline Sims Caitlin McPherran Lombardi James R. Mahalik 《Psychology & health》2013,28(10):1183-1205
Objective: This study considered the unique and interactive roles of social norms from parents, friends and schools in predicting developmental trajectories of adolescent drinking and intoxication.Design and outcome measures: Using data from the National Longitudinal Study of Adolescent Health, which followed adolescents (N = 18,921) for 13 years, we used discrete mixture modelling to identify unique developmental trajectories of drinking and of intoxication. Next, multilevel multinomial regression models examined the role of alcohol-related social norms from parents, friends and schoolmates in the prediction of youths’ trajectory group membership.Results: Results demonstrated that social norms from parents, friends and schoolmates that were favourable towards alcohol use uniquely predicted drinking and intoxication trajectory group membership. Interactions between social norms revealed that schoolmate drinking played an important moderating role, frequently augmenting social norms from parents and friends. The current findings suggest that social norms from multiple sources (parents, friends and schools) work both independently and interactively to predict longitudinal trajectories of adolescent alcohol use.Conclusions: Results highlight the need to identify and understand social messages from multiple developmental contexts in efforts to reduce adolescent alcohol consumption and alcohol-related risk-taking. 相似文献
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79.
Modeling activity-based anorexia, food-deprived rats consistently show that activity increases as weight decreases. This effect was explored in 8 food-deprived, Sprague-Dawley rats as potentially mediated by intrinsic value of activity. Running-wheel activity rates were recorded for free-fed weight, reduction to 90% of free-fed weight, and to 80% of free-fed weight. As expected, activity increased as weight decreased. Further, significant differences appeared in the trends of individual run rates when compared across all trials. These individual trends were expressed as varied rates of running, with extreme high and low run rates prevalent. The rewarding nature of exercise itself might serve to predict these trends in individual rats and reveal potential indicators for the development of activity-based anorexia. 相似文献
80.
Shawyer F Farhall J Mackinnon A Trauer T Sims E Ratcliff K Larner C Thomas N Castle D Mullen P Copolov D 《Behaviour research and therapy》2012,50(2):110-121
Command hallucinations represent a special problem for the clinical management of psychosis. While compliance with both non-harmful and harmful commands can be problematic, sometimes in the extreme, active efforts to resist commands may also contribute to their malignancy. Previous research suggests Cognitive Behaviour Therapy (CBT) to be a useful treatment for reducing compliance with harmful command hallucinations. The purpose of this trial was to evaluate whether CBT augmented with acceptance-based strategies from Acceptance and Commitment Therapy could more broadly reduce the negative impact of command hallucinations. Forty-three participants with problematic command hallucinations were randomized to receive 15 sessions of the intervention "TORCH" (Treatment of Resistant Command Hallucinations) or the control, Befriending, then followed up for 6 months. A sub-sample of 17 participants was randomized to a waitlist control before being allocated to TORCH or Befriending. Participants engaged equally well with both treatments. Despite TORCH participants subjectively reporting greater improvement in command hallucinations compared to Befriending participants, the study found no significant group differences in primary and secondary outcome measures based on blinded assessment data. Within-group analyses and comparisons between the combined treatments and waitlist suggested, however, that both treatments were beneficial with a differential pattern of outcomes observed across the two conditions. 相似文献