Fixed-interval punishment of running in hamsters

Four hamsters received brief electric shocks contingent upon running in a wheel. The fixed interval between shocks was varied systematically from 0 to 60 sec. Time spent running was directly related to the length of the fixed interval, while running speed remained roughly constant. Running depended on the fixed interval between shocks in the same way as bar-pressing maintained by food reinforcement, despite the fact that running was not established with nor maintained by explicit reinforcement.     

A probe trial procedure for the study of children's discrimination learning and transfer

A discrimination reversal problem was presented to 192 children varying in age from 3 to 5 years. At the end of both the initial learning and transfer trials, probe trials were introduced to ascertain the response rule describing children's choices. Results were analyzed in terms of a binary division of the children according to their responses to the probe stimuli; children who responded errorlessly (concept responders) were contrasted with children who made errors on the probes (instance responders). Using this criterion, it was found that many children transferred in a way different from the way they learned the initial problem. There was no difference in the proportion of younger and older children responding conceptually to the original problem, but older children were more likely to transfer conceptually when standard geometric blocks were used as stimuli. Future studies must consider the possiblity that learning and transfer may be accomplished by different processes whose application differs with age, the nature of the stimuli, and the stage of training.     

Electrophysiological analysis of stimulus variables in equivalence relations

Recently, electrophysiological measures have been used to evaluate the functional overlap between semantic relations and laboratory-defined equivalence relations with abstract stimuli. Several studies using semantic judgment procedures have shown that accompanying EEG-measured neural activity for stimulus pairs from equivalence classes is very similar to that of word pairs from participants' native language. However, those studies often included pronounceable elements (e.g., written nonsense syllables) as at least one member of the experimentally defined classes. The present study conducted EEG studies that contrasted classes with and without such elements. Two groups of undergraduate students completed a matching-to-sample procedure to establish 3 4-member equivalence classes. For Group 1, samples and comparisons were pronounceable pseudowords and abstract figures. For Group 2, the matching-to-sample stimuli were abstract figures only. EEG data recorded during the semantic judgment tasks showed waveform patterns compatible with prior studies of semantic relations in Group 1 but not in Group 2.     

自然数码奇象记忆法记忆复杂数字的神经机制

本研究采用学习-再认范式和复杂数字记忆材料,考察自然数码奇象记忆法相对于机械记忆法在记忆提取上的优势及神经机制。行为结果表明,自然数码奇象记忆法比机械记忆法的再认准确率更高。事件相关电位分析结果显示,再认提取阶段奇象记忆条件下诱发的N400和N700波幅显著更低,这说明奇象记忆提取更容易。在自然数码奇象记忆条件下,正确再认旧数字诱发的前额区、左顶枕叶区及中顶枕叶区N700成分与使用自然数码奇象记忆有关。本研究表明,采用自然数码奇象记忆可以减少或跨越语义加工,从而提高个体对材料的记忆效率。     

Framing a Theological Response to COVID-19 in the Presence of the Religious Other

The Christian faith has a long history of responding to pandemics. Its past practice bore witness to the desire to care for others: it furnished an exemplary model with some notable exceptions. The dilemma that COVID-19 presents is that the understanding of viral spread now lies within the preserve of a professionalized health system. The evident risk as a consequence is one of theological quietism and being “unavailing.” Now is not the time for simple hyper compliance at the expense of an enquiring confessional claim. The ecumenical witness in solidarity with other faiths/religions lends itself to a desire to consider how the present pandemic crisis might serve as an invitation for a theological enquiry into wider planetary issues.     

The return of the repressed. On Robert N. Bellah,Norman O. Brown,and religion in human evolution

As much as Robert Bellah’s final work, Religion in Human Evolution, has been studied and dissected, no critic underlined the importance of psychoanalysis for its main argument and its theoretical framework. The paper shows the influence exerted by a controversial interpreter of Freud, Norman O. Brown, on Bellah’s ideas, intellectual profile, and writing style in the late-1960s and early 1970s. While in search for a new intellectual voice, Bellah was struck by Brown’s work and began to make intensive use of his book, Love’s Body, both in his teaching and in his research of the early 1970s, during his so-called “symbolic realism” period. While Bellah abandoned Brown’s ideas and style in the mid-1970s, some of the basic intuitions he had during that period still survived as one of the major theoretical intuitions of Religion and Human Evolution.     

语言熟练度对Stroop效应的影响——不平衡双语者的任务态fMRI研究

目的:探讨语言熟练度对Stroop效应的影响及其背后的脑机制。材料与方法:17位被试参与本研究。被试母语为汉语,第二语言为英语。在被试完成中英文的stroop色字的任务过程中对被试进行fMRI扫描。结果:在色字相一致的条件下,中文任务与英文任务相比,双侧背侧枕叶及右侧背外侧前额叶有更强的激活; 反向比较,双侧腹侧枕叶有更强的激活。在色字不一致的条件下,中文任务与英文任务相比,双侧背外侧前额叶、右侧枕下回有更强的激活; 反向比较,并无显著激活的脑区。此外,中文Stroop效应引起左侧额下回显著的激活。英文Stroop效应中,左侧额下回无显著激活。结论:结合前人研究,我们得出,语言熟练度影响了对注意控制有重要作用的背外侧前额叶以及与反应抑制有关的左侧额下回在Stroop任务中的参与程度,进而影响了Stroop任务的表现     

Substance or System as Foundational Metaphor for a Contemporary Christian World View?

Natural scientists increasingly employ the notion of system, i.e. organized groups of individual entities in dynamic interrelation, as a controlling metaphor in their analysis of physical reality, thereby reflecting a new emphasis on ecology and a holistic approach to reality. A.N. Whitehead’s understanding of the reciprocal cause-and-effect relation between constituent actual entities and the governing structure of the “society” to which they belong provides philosophical grounding for this new methodology and removes the danger of regarding systems as completely deterministic rather than open-ended and self-organizing. Likewise, a systems-oriented approach to the Christian doctrines of the Trinity, the Incarnation and Eschatology clears up residual ambiguities in the traditional understanding of those same beliefs.     

面孔倒置效应的研究与理论述评

面孔倒置效应是指, 个体对倒置面孔的再认成绩显著低于对正立面孔的再认成绩, 而且, 与普通物体的倒置效应相比, 面孔的倒置效应更大。研究者们针对面孔倒置效应提出了多种理论假说, 两种主要的理论解释是：第一, 倒置面孔破坏了面孔的结构特征, 影响了面孔的整体加工, 所以, 个体对倒置面孔的再认成绩较差; 第二, 眼睛在面孔加工中起重要作用, 尤其在倒置面孔中的作用更明显, 使得倒置面孔N170波幅较高。ERP和fMRI研究提示, 未来研究需要进一步明确眼睛、注意等在面孔倒置效应中的作用。     

Stereotype activation is unintentional: Behavioural and event‐related potenials evidence

In this study, a priming Stroop paradigm was used to determine whether stereotype activation is unintentional. Priming conditions (priming/no‐priming) and the relationship between priming and target (consistent/inconsistent/no‐relation) were the independent variables; accuracy, reaction time and N400 amplitude were used as dependent variables. The reaction time revealed that stereotype activation is, to some extent, unintentional. Furthermore, the event‐related potenial (ERP) results showed that N400 amplitude was larger for inconsistent conditions than for consistent conditions. This result supported the notion that stereotype activation is an unintentional and automatic process.