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科学思维的心理学研究起源于发展心理学的研究传统,在最近三十年不断拓展.本文首先回顾了在科学思维研究的发展过程中,其研究框架和模型的变化;进而阐述了近来科学思维研究所使用的典型实验范式;最后从发展、个体差异、专家新手比较以及教学干预这四个角度综述了近来一些科学思维的心理学研究成果,并探讨了这一领域未来的研究方向. 相似文献
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Treadmill exercise enhances passive avoidance learning in rats: the role of down-regulated serotonin system in the limbic system 总被引:1,自引:0,他引:1
Chen HI Lin LC Yu L Liu YF Kuo YM Huang AM Chuang JI Wu FS Liao PC Jen CJ 《Neurobiology of learning and memory》2008,89(4):489-496
While serotonin (5-HT) may impair learning and memory, exercise has been reported to improve them. Whether chronic exercise can facilitate fear memory via regulating the serotonin system is unknown. We examined the effects of 4-week treadmill exercise training on levels of 5-HT and its metabolite 5-hydroxyindoleacetic acid (5-HIAA), the protein expression of its receptor 5-HT1A and transporter in the amygdala, hippocampus and prefrontal cortex of male Sprague–Dawley rats. Our results demonstrated that treadmill exercise (1) improved the passive avoidance learning performance; (2) decreased the 5-HT level in the hippocampus; (3) decreased the expression of 5-HT1A receptor in the amygdala without altering the transporter expression. Moreover, pretreatment with 0.1 mg/kg 8-hydroxy-di-n-propylamino tetralin, a selective 5-HT1A receptor agonist, impaired the passive avoidance performance and completely abolished the exercise-enhanced fear memory. Our results suggest that down-regulation of the 5-HT system in the limbic system, i.e., the reduction of the hippocampus 5-HT content and the amygdala 5-HT1A receptor expression, may be involved in the exercise-enhanced fear memory. 相似文献
954.
Wu AM 《Psychology, health & medicine》2008,13(1):48-54
Since family permission is necessary for organ procurement to occur in China, family discussions about posthumous organ donation are crucial for increasing the actual organ donation and transplant rate. However, this study found that among 298 Chinese young adults, most of them (88%) were reluctant to talk about organ donation with their families. Based on the Theory of Reasoned Action, this study investigated communication within families about organ donation. Psychological factors included intention, attitude, subjective norm, death anxiety, and knowledge. As expected, the subjective norm was more powerful than attitude in explaining family discussions among Chinese people. Death anxiety, but not misconception, also significantly lowered the likelihood of family discussion. It is concluded that future campaigns for lessening death anxiety and promoting the social norm for organ donation must be conducted in Chinese societies, in order to encourage family discussions and improve the donation rate. 相似文献
955.
Wu KC 《The American journal of bioethics : AJOB》2008,8(5):28-30; discussion W1-3
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人性不止自然属性和社会属性两个层面,还包括介于两者之间而相对不变的"人的本性".因此,人性是一个包含三个层次的结构体人的本能、人的本性和人的本质.现实的政治实践应主要以前两个层次为依据,以此为基础的政治实践将能够比较顺利地实现其预定的目标.相反,如果一厢情愿地固持一种理想主义的政治理念,将不仅实现不了这种理想主义,甚至可能适得其反."文化大革命"改造人性的失败试验就是一个不该被忘记的教训. 相似文献
959.
Age differences in the prevalence of physical aggression among 5-11-year-old Canadian boys and girls
It has been proven extremely difficult in the past to estimate the prevalence of physical aggression in children for two main reasons: (a) a heterogeneous sampling of behaviors (i.e., mix between physically aggressive and non-physically aggressive antisocial behaviors), and (b) a lack of a "gold standard" to identify children who exhibit physically aggressive behaviors on a frequent basis. The goal of this study was to test for age differences in the prevalence of physical aggression in the Canadian population of school-aged boys and girls, using cross-sectional data from the National Longitudinal Survey of Children and Youth (NLSCY). The first wave of the NLSCY included a representative sample of 12,292 Canadian children aged 5-11 years. We used latent class analysis to identify children whose propensity to exhibit physically aggressive behaviors was much higher than that of other children of the same age and sex in the population. The prevalence of physical aggression was estimated at 3.7% in 5-11-year-old boys and ranged from .5% to 2.3% in 11 and 5-year-old girls, respectively. Hence, the results show a decreasing trend in the prevalence of physical aggression with age for girls, but not for boys. These findings suggest the importance of considering the developmental pathways of physical aggression for boys and girls separately. 相似文献
960.
Three studies show that negotiators consistently underestimate the size of the bargaining zone in distributive negotiations (the small-pie bias) and, by implication, overestimate the share of the surplus they claim (the large-slice bias). The authors explain the results by asymmetric disconfirmation: Negotiators with initial estimates of their counterpart's reservation price that are "inside" the bargaining zone tend to behave consistently with these estimates, which become self-fulfilling, whereas negotiators with initial "outside" estimates revise their perceptions in the face of strong disconfirming evidence. Asymmetric disconfirmation can produce a population-level bias, even when initial perceptions are accurate on average. The authors suggest that asymmetric disconfirmation has implications for confirmation bias and self-fulfilling-prophecy research in social perception. 相似文献