恐惧情绪对大鼠学习记忆的影响

通过对４组不同处理背景动物操作条件学习的实验研究,观察强噪音下恐惧情绪对动物学习、记忆的影响以及怎样通过系统脱敏来减少恐惧在其中的作用。结果发现：恐惧组大鼠的操作条件学习具有第一次联系（健盘与食物之间）成功所需时间短、旧技能遗忘快、重新学习次数多和学习成绩差等特征;恐惧组大鼠与学习无关的恐惧行为增多,严重干扰学习的控制加工过程,影响学习任务完成;强噪音脱敏组大鼠学习过程、学习成绩的各项指标与控制组无差异。     

A solid-state device for eliminating electrical noise and biopotentials in electromyographic (EMG) recordings

A small, low-cost, integrated circuit device is described. This circuit reduces electrical noise, such as that produced from a poor electrode-skin interface and power-line interference (60 Hz). Advantages of this device, with regard to use in electrically noisy environments and with long cables, are discussed.     

社会排斥类型对求助行为意愿的影响

从心理需求威胁的视角切入,探讨不同类型的社会排斥对求助行为意愿的影响及其作用机理。两个实验研究的结果表明,相较于被忽略,被拒绝会促使人们在后续困境中产生更高的求助行为意愿。该效应产生的心理机制在于被拒绝会威胁归属需求,被忽略会威胁控制需求,而求助行为本身能够满足人们的归属需求,但同时会降低控制感,因此归属需求和控制需求在社会排斥类型对求助行为意愿的影响中均起着显著的中介作用。     

农村老年人的社会排斥体验与健康状况:有调节的中介作用

基于社会排斥的多元动机模型、负性情绪影响健康的四通路模型,通过对一项覆盖中国31个省级行政区（不含港澳台）农村居民社会调查数据的分析,考察了1803名农村老年人社会排斥体验与健康状况的关系,以及负性情绪、人际信任、经济状况在两者中的作用。结果表明,农村老年人的社会排斥体验负向预测其健康状况;负性情绪在农村老年人社会排斥体验和健康状况之间起中介作用;人际信任、经济状况均在农村老年人社会排斥体验和负性情绪之间起调节作用;经济状况还在农村老年人负性情绪和健康状况之间起调节作用。该结果不仅验证并拓展了上述两个理论模型,还为农村的养老服务体系建设、农村老年人的健康服务工作提供了启示。     

Exclusion performance and learning by exclusion in dogs

Responding by exclusion is a type of emergent repertoire in which an individual chooses an alternative by the apparent exclusion of other available alternatives. In this case it is possible to respond appropriately to an undefined stimulus (one that has not previously acquired discriminative functions) by excluding the defined alternatives. There is evidence of exclusion in humans and nonhuman animals, although learning as an outcome of exclusion does not always occur. This study aimed to investigate exclusion in visual simple discriminations and learning of new simple discriminations resulting from exclusion in four border collies. Subjects were trained to perform simple simultaneous discriminations between pairs of tridimensional objects, and were then tested for exclusion, novelty control and learning of new simple discriminations. All dogs successfully responded by exclusion, choosing an undefined stimulus displayed with an S‐. For three dogs, it was possible to conclude that these previously undefined stimuli acquired S+ functions, documenting learning of new simple discriminations. However, this required up to four exposures to exclusion trials with each pair of stimuli.     

The stigma of making a living from garbage: Meta‐sterotypes of trash‐pickers in León (Nicaragua)

The article analyzes various aspects related to the meta‐stereotype of 99 trash pickers who made their living from the garbage dumps in León (Nicaragua). This group is difficult to access, heavily stigmatized, and lives in extreme poverty. All the pickers in the city were interviewed using a heteroapplied structured interview. The results show that people who obtained their livelihood from garbage in the city of León had a mainly negative meta‐stereotype, albeit one to which was some extent indulgent, which could have a negative impact on their processes of social inclusion. The content of the meta‐stereotype had a high degree of uniformity, with few variations between the respondents. However, some differences were observed in the use of some attributes in the meta‐stereotype according to age, cohabitation with a partner and/or with parents, income level, engagement in paid work apart from picking garbage and the respondents' expectations for the future.     

COGNITIVE SCIENCE OF RELIGION AND FOLK THEISTIC BELIEF

Cognitive scientists of religion promise to lay bare the cognitive mechanisms that generate religious beliefs in human beings. Defenders of the debunking argument believe that the cognitive mechanisms studied in this field pose a threat to folk theism. A number of influential responses to the debunking argument rely on making two sets of distinctions: (1) proximate/ultimate explanations and (2) specific/general religious beliefs. I argue, however, that such responses have drawbacks and do not make room for folk theism. I suggest that a detour through the literature in the philosophy of mind regarding the problem of mental causation regarding nonreductive physicalism can provide a way for preserving folk theism without doing violence to the way cognitive science of religion is being practiced today. More specifically, I believe there is a way of responding to the debunking argument that does not require a rejection of the causal premise.     

Explanatory exclusion and mental explanation

Jaegwon Kim once refrained from excluding distinct mental causes of effects that depend upon the sufficient physical cause of the effect (Kim, 1984 Kim, J. (1984). "Epiphenomenal and Supervenient Causation", Midwest Studies in Philosophy, 9, p. 257–270.[Crossref], [Web of Science ®] , [Google Scholar]). At that time, Kim also refrained from excluding distinct mental explanations of effects that depend upon complete physical explanations of the effect (Kim, 1988 Kim, J. (1988). Explanatory realism, causal realism, and explanatory exclusion. Midwest Studies in Philosophy, 12, 225–239.[Crossref], [Web of Science ®] , [Google Scholar], 1989 Kim, J. (1989). Mechanism, purpose, and explanatory exclusion. Philosophical Perspectives, 3, 77–108.[Crossref] , [Google Scholar]). More recently, he has excluded distinct mental causes of effects that depend upon the sufficient cause of the effect, since the physical cause is individually sufficient for the effect (Kim, 2005 Kim, J. (2005). Physicalism, or something near enough. Princeton, NJ: Princeton University Press. [Google Scholar]). But there has been, to this point, no parallel shift in the explanatory realm, such that distinct mental explanations of effects that depend upon complete physical explanations of the effect are excluded since the physical explanation is objectively complete. In this paper I consider, defend, and apply this update to the principle of explanatory exclusion—an update, which, in the final analysis, demonstrates a significant advantage that non-reductive physicalism has over reductive physicalism.