Confirmation of linear system theory prediction: Rate of change of Herrnstein's kappa as a function of response-force requirement

Four human subjects worked on all combinations of five variable-interval schedules and five reinforcer magnitudes (¢/reinforcer) in each of two phases of the experiment. In one phase the force requirement on the operandum was low (1 or 11 N) and in the other it was high (25 or 146 N). Estimates of Herrnstein's κ were obtained at each reinforcer magnitude. The results were: (1) response rate was more sensitive to changes in reinforcement rate at the high than at the low force requirement, (2) κ increased from the beginning to the end of the magnitude range for all subjects at both force requirements, (3) the reciprocal of κ was a linear function of the reciprocal of reinforcer magnitude for seven of the eight data sets, and (4) the rate of change of κ was greater at the high than at the low force requirement by an order of magnitude or more. The second and third findings confirm predictions made by linear system theory, and replicate the results of an earlier experiment (McDowell & Wood, 1984). The fourth finding confirms a further prediction of the theory and supports the theory's interpretation of conflicting data on the constancy of Herrnstein's κ.     

GOD IN THE CAVE

When Finite and Infinite Goods was published in 1999, it took its place as one of the few major statements of a broadly Augustinian ethical philosophy of the past century. By “broadly Augustinian” I refer to the disposition to combine a Platonic emphasis on a transcendent source of value with a traditionally theistic emphasis on the value‐creating capacities of absolute will. In the form that this disposition takes with Robert Merrihew Adams, it is the resemblance between divine and a finite excellence that makes the finite excellence objectively of value, and it is the correspondence of an obligation to a divine command that makes the obligation objectively obligatory. I look closely at the complexity of this ethical division of labor—between the good and the right—mainly as it appears in the context of Finite and Infinite Goods, but also with attention to the broader corpus of Adams's writings, particularly his work on Leibniz and the essays of his that have been gathered together in The Virtue of Faith. I argue that there is a creative tension in his work between his desire to secure an objective basis for ethics and his affirmation of the value of grace, a love that is not proportioned to the excellence of its object. This tension, I further argue, ought to be resolved in the direction of grace.     

肝脾CT值分析在非酒精性脂肪肝诊断中的应用

探讨肝脾CT值分析在非酒精性脂肪肝中诊断及严重程度的关系。对163例临床明确诊断的非酒精性脂肪肝患者,分别根据肝脏cT值、肝脾CT值比值及肝脾CT值差值进行分组。结果三种评价方法对重度非酒精性脂肪肝均有较高的灵敏度及特异度,轻度非酒精性脂肪肝样本中出现28例肝脾CT比值〉1,肝脾值差值与肝脾CT值比值在对脂肪肝严重程度...     

干宝易学哲学之探讨

干宝易学蕴涵的总体宇宙关怀和终极人文关切主要包括:理想礼法秩序的构建、圣人君子的人格期冀、天人合一的价值诉求三个方面.具体表现为:各安其位、各正性命的合理社会秩序建设;圣人君子家国天下的责任担当与深挚的忧患意识期许;天人相应、应天顺民的天人有序而和谐的价值追求.干宝易学思想终极价值的内容是其易学思想人文精神的集中体现和形上学维度的积极展开,这三个组成部分无不彰显干宝对于现实的关切并积极面对的态度,是其儒家价值理想与人生追求的集中体现.在对于现实问题的解读以及解决的内容和方式中,干宝既有对于传统的继承,又有其无可替代的个人观解.而面对所遭遇到的时代性问题,干宝尽力给出了一位真正儒者的解答.     

大学生的自我差异与价值偏好

基于以往对自我透视和价值偏好的研究,本研究提出自我差异是引发价值偏好出现分离的原因之一。两项研究对这一假设进行了检验。结果发现：相对于害怕的可能自我,大学生在期望可能自我上体验到更大的差异;在可能自我差异激活后,理想主义价值在个体的价值系统中占据主导地位,而在当前自我差异激活后,实用主义价值占据主导地位;当下目标和当前自我同时启动时,与当下目标未启动时,两组个体对价值偏好无显著差异。     

Effects of gender similarity on relationships between person–group value fit and work attitudes

The present study assessed the effect of gender similarity as a potential moderator of the relationships between person–group (P–G) value fit and work attitudes. Specifically, we predicted that the effect of P–G value fit (in terms of social integration values) on individual attitudes would be stronger for individuals who had a similar gender than those of a different gender. Based on data obtained from 197 employees in South Korea, we found that when the focal individual had high gender similarity with his or her group, the relationships between P–G value fit and job satisfaction and between P–G value fit and turnover intentions were more prominent. Furthermore, these moderating effects were significant for men, but not for women.     

Task-defined associations are mode specific for selection of relevant dimension but mode independent for selection of location mapping

When compatible and incompatible mappings of a location-relevant task are mixed, or a location-relevant task is mixed with a task for which stimulus location is irrelevant, the benefit of the compatible mapping is eliminated for physical locations and enhanced for location words. Two experiments examined the influence of presenting the location information for the mixed conditions in different stimulus modes (physical location or word). Experiment 1 showed that the effects of mixing location-relevant and location-irrelevant tasks on the spatial compatibility and Simon effects are reduced when the location information is presented in different modes for the two tasks. Experiment 2 showed, in contrast, that the mode distinction had little influence on the effects of mixed compatible and incompatible mappings for location-relevant tasks: The compatibility effect was eliminated for physical locations and enhanced for words, as when there is no mode distinction. Thus, when location is relevant for one task and colour for the other, the task-defined associations of locations to responses are mode specific, but when location is relevant for both tasks, the associations are mode independent.     

Self-construal priming modulates the scope of visual attention

Although it is well documented that cultures influence basic cognitive processes such as attention, the underlying mechanisms remain unclear. We tested the hypothesis that self-concepts that characterize people from different cultures mediate the variation of visual attention. After being primed with self-construals that emphasize the Eastern interdependent self or the Western independent self, Chinese participants were asked to discriminate a central target letter flanked by compatible or incompatible stimuli (Experiment 1) or global/local letters in a compound stimulus (Experiment 2). Experiment 1 showed that, while responses were slower to the incompatible than to the compatible stimuli, this flanker compatibility effect was increased by the interdependent relative to the independent self-construal priming. Experiment 2 showed that the interdependent-self priming resulted in faster responses to the global than to the local targets in compound letters whereas a reverse pattern was observed in the independent-self priming condition. The results provide evidence for dynamics of the scope of visual attention as a function of self-construal priming that switches self-concept toward the interdependent or independent styles in Chinese.     

Transfer of orthogonal stimulus–response mappings to an orthogonal Simon task

When up–down stimulus locations are mapped to left–right keypresses, an overall advantage for the up–right/down–left mapping is often obtained that varies as a function of response eccentricity. This orthogonal stimulus–response compatibility (SRC) effect also occurs when stimulus location is irrelevant, a phenomenon called the orthogonal Simon effect, and has been attributed to correspondence of stimulus and response code polarities. The Simon effect for horizontal stimulus–response (S–R) arrangements has been shown to be affected by short-term S–R associations established through the mapping used for a prior SRC task in which stimulus location was relevant. We examined whether such associations also transfer between orthogonal SRC and Simon tasks and whether correspondence of code polarities continues to contribute to performance in the Simon task. In Experiment 1, the orthogonal Simon effect was larger after practising with an up–right/down–left mapping of visual stimuli to responses than with the alternative mapping, for which the orthogonal Simon effect tended to reverse. Experiment 2 showed similar results when practice was with high (up) and low (down) pitch tones, though the influence of practice mapping was not as large as that in Experiment 1, implying that the short-term S–R associations acquired in practice are at least in part not modality specific. In Experiment 3, response eccentricity and practice mapping were shown to have separate influences on the orthogonal Simon effect, as expected if both code polarity and acquired S–R associations contribute to performance.     

Evidence for a role of the responding agent in the joint compatibility effect

The present study explored the role of the responding agent in a social context. To do so, we developed a compatibility task with socially relevant but task-irrelevant stimuli (own face, neutral face, and a friend's face). Participants were required to perform naming responses to coloured diamonds, while the faces were presented as irrelevant stimuli. We observed faster responses in face–name compatible than in incompatible conditions. When the task was distributed among two friends, we observed a compatibility effect in a joint go/no-go condition, in which both participants performed their go/no-go tasks together. In contrast, no compatibility effect was obtained in an individual go/no-go condition. Further, the experiment showed that this joint compatibility effect was based on the compatibility between the irrelevant face and the responding agent. This result demonstrates that features of the responding agent play a crucial role in the joint compatibility effect.