Processing polarity: how the ungrammatical intrudes on the grammatical

A central question in online human sentence comprehension is, “How are linguistic relations established between different parts of a sentence?” Previous work has shown that this dependency resolution process can be computationally expensive, but the underlying reasons for this are still unclear. This article argues that dependency resolution is mediated by cue‐based retrieval, constrained by independently motivated working memory principles defined in a cognitive architecture. To demonstrate this, this article investigates an unusual instance of dependency resolution, the processing of negative and positive polarity items, and confirms a surprising prediction of the cue‐based retrieval model: Partial‐cue matches—which constitute a kind of similarity‐based interference—can give rise to the intrusion of ungrammatical retrieval candidates, leading to both processing slow‐downs and even errors of judgment that take the form of illusions of grammaticality in patently ungrammatical structures. A notable achievement is that good quantitative fits are achieved without adjusting the key model parameters.     

ENGAGING SCIENCE IN THE MODE OF TRUST: HANS KÜNG'S THE BEGINNING OF ALL THINGS

In 2006 Swiss theologian Hans Küng added his distinctive and important voice to the science/theology discussion in his work Der Anfang aller Dinge. I summarize here the general contours of Küng's argumentation and briefly evaluate his proposals, especially in relation to his earlier publications. English translations are provided for German citations. After summarizing Küng's response to the question of the search for a unified theory of everything, I present his answer to the question of how theology and science should be related. This leads to a summary of his extensive meditation on science and the question of God's existence from a theological‐philosophical perspective. After examining his thesis concerning creation and evolution, I discuss matters more anthropological and trace the final elements of Küng's argument as they relate to eschatology and science. Finally, I evaluate the general thrust of his argumentation with special reference to his previous publications.     

Kripke’s paradox and the Church–Turing thesis

Kripke (1982, Wittgenstein on rules and private language. Cambridge, MA: MIT Press) presents a rule-following paradox in terms of what we meant by our past use of “plus”, but the same paradox can be applied to any other term in natural language. Many responses to the paradox concentrate on fixing determinate meaning for “plus”, or for a small class of other natural language terms. This raises a problem: how can these particular responses be generalised to the whole of natural language? In this paper, I propose a solution. I argue that if natural language is computable in a sense defined below, and the Church–Turing thesis is accepted, then this auxiliary problem can be solved.     

高血压合并糖尿病患者的降压目标及治疗

高血压合并糖尿病是冠心病致死的危险因素。有效地控制血压可以显著地降低糖尿病病人心血管事件的发病率与病死率。高血压糖尿病病人的血压控制目标为〈130／80mmHg。为了达到这一血压水平,糖尿病病人的降压治疗包括合理的非药物治疗与药物治疗。在药物治疗中应选用血管紧张素转换酶抑制剂、血管紧张素受体拮抗剂、钙离子拮抗剂和小剂量利尿剂,并且注意联合用药。     

功能性便秘

功能性便秘是常见的慢性便秘,罗马III提出了新的诊断标准。功能性便秘的一般治疗包括定期排便、增加活动、增加纤维素摄取,改变生活方式和调整情绪。慢传输型便秘的药物选择膨胀性泻药、渗透性泻剂、促动力剂、氯通道激活剂等。功能性排便障碍型患者可选择生物反馈治疗。治疗成功后应调节剂量,维持疗效。外科治疗应有严格的适应证。进一步研究结肠动力与排便生理,以提高对疾病的认识和提出有效的治疗。     

爱荷华博弈任务(IGT)与决策的认知神经机制

爱荷华博弈任务(IGT)是一项检查情感性决策机制的常用实验范式。据此, Damasio等人提出了躯体标记假设(SMH)解释情绪影响决策的神经生理机制。近期, 大量研究在IGT究竟是模糊决策还是风险决策、与情绪和认知的关系、与工作记忆和陈述性记忆的关系以及IGT的神经网络与分子遗传机制等方面积累了丰富资料。结果显示, IGT加工的早期由模糊决策主导, 情绪性躯体信号对引导决策选项的偏好可能起关键作用, 后期则倾向是一种风险决策, 认知评价和预期对选项偏向逐渐占优势; IGT与工作记忆的加工成分有相互重叠, 也需陈述性记忆的参与; IGT的加工不仅依赖于杏仁核、腹内侧前额皮层、眶额皮层等组成的情绪脑网络的活动, 还与背外侧前额皮层、海马、腹侧纹状体、岛叶皮层、辅助运动前区、扣带回皮层等许多脑区的活动有关; COMT和5-HTT的基因多态性会调节IGT相关的决策加工。总之, IGT是一项需要多重神经系统协同活动的决策加工任务, 且模糊与风险决策可能具有不同的遗传基础。     

Neural affective decision theory: Choices, brains, and emotions

We present a theory and neurocomputational model of how specific brain operations produce complex decision and preference phenomena, including those explored in prospect theory and decision affect theory. We propose that valuation and decision making are emotional processes, involving interacting brain areas that include two expectation-discrepancy subsystems: a dopamine-encoded system for positive events and a serotonin-encoded system for negative ones. The model provides a rigorous account of loss aversion and the shape of the value function from prospect theory. It also suggests multiple distinct neurological mechanisms by which information framing may affect choices, including ones involving anticipated pleasure. It further offers a neural basis for the interactions among affect, prior expectations and counterfactual comparisons explored in decision affect theory. Along with predicting the effects of particular brain disturbances and damage, the model suggests specific neurological explanations for individual differences observed in choice and valuation behaviors.