Ontological Parity and/or Ordinality?

The principles of ontological parity and ordinality have distinct functions in Buchler's ontology. Ontological parity could be independently subscribed to, whereas ordinality signals the positive conception of the nature of reality as irreducibly complex or indefinitely related, which Buchler's metaphysical system seeks to articulate. Both principles inform Buchler's system, but each has a distinctive function. They are not, I suggest, necessarily at odds with one another, as some critics claim. I do identify several difficulties that follow from (1) the level of generality claimed by Buchler and (2) the claim of irreducible complexity or indefinite relatedness.     

Line-orientation generalization following signalled-reinforcer training

Three naive and three nonnaive pigeons key pecked for food on a multiple variable-interval 1-minute variable-interval 1-minute schedule with a black zero-degree vertical line on a white surround associated with one component and a black line shifted 30 degrees to the right (+30 degree) associated with the other component. Subsequently, a signalled-reinforcer procedure was introduced in the +30 degree component, i.e., whenever the reinforcer was available for the next response, the key changed to blank white. Following this training, the original unsignalled-reinforcer condition was re-instated. Line orientation generalization tests were given at the end of signalled-reinforcer training and after the second unsignalled-reinforcer condition. The signalled-reinforcer procedure reduced response rate in the +30-degree component in all subjects but facilitated responding during the zero-degree component (behavioral contrast) for two of the naive subjects only. However, average generalization gradients following signalled-reinforcer training indicated peak shift in two subjects and area shift in all five subjects that completed the experiment. There was no apparent relation between contrast and peak shift or degree of area shift. The data were interpreted as supporting the notion that the signalled-reinforcer procedure segments a variable-interval schedule into extinction and fixed ratio 1 segments.     

The awareness of thirst: proposed neural correlates

The neural and endocrine bases of the generation of thirst are reviewed. Based on this review, a hierarchical system of neural structures that regulate water conservation and acquisition is proposed. The system includes primary sensory-receptive areas; secondary sensory structures (circumventricular organs), which detect levels of hormones, including angiotensin II and vasopressin, which are involved in generating thirst; preoptic and hypothalamic structures; and an area within the ventrolateral quadrant of the periaqueductal gray matter. Hodological and other data are used to determine the hierarchical organization of the system. Based on studies of the effects of lesions to various structures within the hierarchy of the system, it is proposed that the awareness of thirst in rodents is either entirely or predominantly due to neuronal activities in a subsection of the ventrolateral periaqueductal gray matter. It is also hypothesized that the awareness of thirst in primates is due to neuronal activities in both the ventrolateral periaqueductal gray and in a region within the medial prefrontal and anterior cingulate cortex.     

镜像等效或守恒及其打破：从行为到认知神经机制的研究证据

镜像等效或守恒是动物与人类个体对两侧对称自然物体的一种进化自适应加工。但是, 这种知觉特性会妨碍包含镜像字符的文字阅读学习。阅读者有必要学会利用镜像泛化抑制的“去学习”机制, 打破镜像等效或守恒, 以获得识别镜像字符的能力。这一过程中, 左侧梭状回皮层通过与早期视觉皮层、顶叶皮层和口语脑网络的交互作用, 逐渐发展出一个可以识别镜像字符的视觉词形区(visual word form area, VWFA)。今后的研究需要关注两半球及其连合纤维在镜像等效或守恒加工中的作用、镜像泛化与抑制的详尽加工机制及其对镜像书写的影响、正常汉语儿童的汉字镜像泛化加工等问题。     

西北农村地区母亲抑郁与幼儿社交退缩:母亲回应性的中介作用

以甘肃省陇南市成县6所幼儿园301名农村幼儿及其母亲为研究对象,采用流调中心抑郁量表（CES-D）、母亲教养方式量表和Achenbach儿童行为量表（CBCL）分别考察母亲抑郁、母亲回应性和幼儿社交退缩的现状及相互关系。主要结果如下：（1）西北农村地区母亲抑郁发生率较高,父亲外出打工和贫困家庭的母亲抑郁发生率更高;（2）母亲抑郁与幼儿社交退缩行为显著正相关,母亲抑郁水平越高,幼儿社交退缩得分越高;（3）母亲敏感性和反应性与幼儿社交退缩显著负相关,母亲敏感性和反应性得分越高,幼儿社交退缩得分越低;（4）母亲反应性在母亲抑郁和幼儿社交退缩之间起部分中介作用。     

网络游戏中化身参照的加工优势：来自行为与ERPs的证据

采用R/K范式和事件相关电位技术(ERPs)分别从加工结果和加工过程考察网络游戏中化身参照的加工优势。实验1采用R/K范式比较40名玩家在不同参照条件下的记忆成绩。结果发现：化身参照的总再认正确率、R反应再认正确率和辨别力d'都显著优于他人参照, 初步证实化身参照的记忆加工优势。实验2借助ERPs内隐地考察网络游戏中20名玩家的化身参照在加工时间进程上的神经机制。结果发现：加工化身名字比熟悉他人名字诱发更大的P2 (160~260 ms)和P3 (370~600 ms)波幅, 比外国熟悉他人名字的P3潜伏期更短。结果表明, 相比较其他信息, 玩家不仅能够迅速注意到化身相关信息, 还对化身相关信息进行了更加精细和深入地加工。综上所述, 无论是记忆结果还是加工时间进程, 都存在网络游戏中的化身参照加工优势。     

EFFECT OF ACADEMIC DEGREE AND DISCIPLINE ON RELIGIOUS BELIEFS AND EVOLUTION ACCEPTANCE: SURVEY AT A CHILEAN UNIVERSITY

Affiliation with a scientific area or degree program could affect one´s religious beliefs and acceptance of evolution; however, this issue has been poorly studied. Moreover, little information is available regarding Chilean university scientists’ views on religion and evolution. This study aims to provide the first documentation of the opinion of scientists at a Chilean University with regard to religion and evolution. This was done by conducting a personal survey of first and last year undergraduate students, graduate students, and faculty. We found that nonreligiosity, as well as acceptance of Darwinian evolution, increased with possession of an advanced degree and this correlation was stronger for individuals who study biology and physics in comparison to those who study chemistry. Although less than 30 percent of undergraduate students are atheists/agnostics, more than 70 percent of faculty members are atheist or agnostic. However, most of the surveyed scientists did not see a conflict between science and religion.     

Tragic Dilemmas and the Priority of the Moral

My purpose in this paper is to argue that we are not vulnerableto inescapable wrongdoing occasioned by tragic dilemmas. I directmy argument to those who are most inclined to accept tragicdilemmas: those of broadly Nietzschean inclination who reject``modern moral philosophy' in favor of the ethical ideas of theclassical Greeks. Two important features of their project are todeny the usefulness of the ``moral/nonmoral distinction,' and todeny that what are usually classified as moral reasons always oreven characteristically ``trump' nonmoral reasons in anadmirable agent's deliberations.I show critics of modern moral philosophy such as BernardWilliams that their acceptance of tragic dilemmas underminestheir project of denying the moral/nonmoral distinction and thepriority of moral reasons. The possibility of tragic dilemmasrequires an account of practical deliberation in which moralreasons appear as already in-force obligations, with blame andguilt ready to be invoked, while nonmoral reasons appear as merereasons. This makes moral reasons importantly different fromnonmoral reasons in how they achieve their deliberative weight,and also makes them characteristically weightier. Thus,accommodating tragic dilemmas reinforces the moral/nonmoraldistinction and the priority of moral reasons, the very thingsthese critics want to deny. By accepting the possibility oftragic dilemmas, these critics are undermining their own project.The standard normative theories are dead set against tragicdilemmas, and the critics of modern moral philosophy shouldreject tragic dilemmas for the good of their project. Thus we allshould reject tragic dilemmas.     

Speech-associated gestures, Broca’s area, and the human mirror system

Speech-associated gestures are hand and arm movements that not only convey semantic information to listeners but are themselves actions. Broca’s area has been assumed to play an important role both in semantic retrieval or selection (as part of a language comprehension system) and in action recognition (as part of a “mirror” or “observation–execution matching” system). We asked whether the role that Broca’s area plays in processing speech-associated gestures is consistent with the semantic retrieval/selection account (predicting relatively weak interactions between Broca’s area and other cortical areas because the meaningful information that speech-associated gestures convey reduces semantic ambiguity and thus reduces the need for semantic retrieval/selection) or the action recognition account (predicting strong interactions between Broca’s area and other cortical areas because speech-associated gestures are goal-direct actions that are “mirrored”). We compared the functional connectivity of Broca’s area with other cortical areas when participants listened to stories while watching meaningful speech-associated gestures, speech-irrelevant self-grooming hand movements, or no hand movements. A network analysis of neuroimaging data showed that interactions involving Broca’s area and other cortical areas were weakest when spoken language was accompanied by meaningful speech-associated gestures, and strongest when spoken language was accompanied by self-grooming hand movements or by no hand movements at all. Results are discussed with respect to the role that the human mirror system plays in processing speech-associated movements.     

时间知觉的注意调节：一项ERP研究

采用双任务实验范式探讨时间知觉注意调节的动态过程。通过指导语使被试按照比例将注意分配到声音刺激的时间属性与音调属性上,形成对时间因素不同注意程度的五种注意条件,同时记录反应时、错误率和事件相关电位数据。对峰值分析发现,P2注意条件主效应不显著,但多重比较时T（只注意时间）与P（只注意音调）条件差异显著;对CNV平均波幅分析,发现注意条件主效应显著,随着分配在时间属性上的注意的减少,其波幅逐渐降低;对T与P条件的差异波地形图分析发现,波幅最大的区域位于额叶、中央区和顶叶;该差异波的偶极子定位于辅助运动区（额上回、额中回）和顶下小叶。以上结果表明,P2阶段存在时间信息加工;CNV反映时间知觉的注意调节,时间知觉中存在控制加工应该以CNV的出现为指标;辅助运动区可能为时间知觉的核心成分,具有跨通道效应;顶下小叶也与对时间的注意有关,但并不是特异性的。本研究不支持Lewis提出的 “自动”与“认知控制”计时系统理论中 “秒”为两系统分界点以及辅助运动区只属于“自动计时系统”的观点