从面孔模块到马赛克──视觉特异性加工的脑机制

“脑功能的模块性”是视觉乃至整个认知神经科学的研究热点。特异性的面孔加工模块被当作是认知模块假说的最好证据。但综述跨学科的正反两方面实验证据表明,视觉加工存在特异性,并没有普遍的模块式的亚单元,而是“马赛克”镶嵌式的组构。     

建构主义教学与元思维的关系:认知压力的解释

本研究采用建构主义教学评估问卷、认知压力问卷、一般元思维量表与情境元思维量表对381名学生进行测量,考察了建构主义教学与元思维之间的关系,以及一级、二级认知压力在其中的中介或解释作用。研究采用结构方程模型分析,结果显示:(1)仅考虑一级认知压力时,建构主义教学能正向预测两种元思维,一级认知压力在建构主义教学与两种元思维间皆起部分中介作用;(2)仅考虑二级认知压力时,其在建构主义教学与两种元思维间皆起完全中介作用;(3)同时加入两种认知压力时,仅二级认知压力的中介作用显著。     

Some Ethical Concerns About Human Induced Pluripotent Stem Cells

Human induced pluripotent stem cells can be obtained from somatic cells, and their derivation does not require destruction of embryos, thus avoiding ethical problems arising from the destruction of human embryos. This type of stem cell may provide an important tool for stem cell therapy, but it also results in some ethical concerns. It is likely that abnormal reprogramming occurs in the induction of human induced pluripotent stem cells, and that the stem cells generate tumors in the process of stem cell therapy. Human induced pluripotent stem cells should not be used to clone human beings, to produce human germ cells, nor to make human embryos. Informed consent should be obtained from patients in stem cell therapy.     

Mechanisms for the object-based negative compatibility effect: voluntary versus involuntary inhibition

This study investigates whether the object-based negative compatibility effect (NCE) originates from involuntary or voluntary inhibition. We hypothesised that both supraliminally presented primes (the prime is a mug with its handle pointing either left or right) and experimental instructions (i.e., ignoring the prime) in previous studies might induce participants to develop a voluntarily inhibitory strategy that is responsible for the object-based NCE. To test this hypothesis, we conducted 3 experiments. Experiment 1 confirmed a suitable paradigm. Experiment 2 altered participants’ strategies by varying the frequency of compatible trials across blocks. The results revealed a significant NCE for the low-frequency condition, which suggested that voluntary strategy might be primarily responsible for the object-based NCE. Experiment 3 combined a free-choice target with an object-based NCE paradigm. The results showed equivalent frequencies and mean response times between the free-choice responses that corresponded to or were opposite from the orientations of the mug handle. Combined with the results of response time quartiles, which revealed NCEs in fast responses (Q1–Q3) but no compatibility effect in slow (Q4) responses, we concluded that the object-based NCE might be primarily based on voluntary inhibition. Moreover, this inhibition might take effect earlier than that of the arrow-based NCE.     

虚云老和尚在鼓山

鼓山涌泉寺是闽境第一佛刹,自唐代建寺以来已有上千年的历史[1],自宋代起,鼓山即是禅宗各宗派兴盛的道场,相继有云门宗、临济宗、曹洞宗等派系在此弘传。明清时期,有无异元来、永觉元贤、为霖道霈等禅师在此驻锡弘法,是重要的禅宗祖庭。[2]近代以来,鼓山在中国佛教,尤其是禅宗的传承和发展中扮演了重要角色,妙莲、虚云、圆瑛、慈舟、应慈等大德都与鼓山有着不解之缘。此外,鼓山涌泉寺,不仅是历代闽地重要的弘法中心之一,而且对其周边地区,如我国香港、澳门、台湾,以及日本与南洋等国家和地区的佛教具有很大影响。     

亲社会行为倾向的年龄差异:共情关怀和人际信任的链式中介效应

全球老龄化浪潮正在来临,亲社会行为倾向的年龄差异受到广泛关注。基于第六次世界价值观调查数据集,运用39887个全球成年样本对全球人口亲社会行为倾向的年龄差异进行检验,并探究年龄通过共情关怀和人际信任影响亲社会行为的中介机制。结果表明:全球范围内,年龄显著正向影响亲社会行为倾向,共情关怀不存在显著的年龄差异,人际信任在年龄和亲社会行为倾向之间起显著的中介效应。研究结果对考察亲社会行为倾向的年龄差异及其作用机制具有重要理论价值和实践意义。