Reference,perception, and attention

I examine John Campbell’s claim that the determination of the reference of a perceptual demonstrative requires conscious visual object-based selective attention. I argue that although Campbell’s claim to the effect that, first, a complex binding parameter is needed to establish the referent of a perceptual demonstrative, and, second, that this referent is determined independently of, and before, the application of sortals is correct, this binding parameter does not require object-based attention for its construction. If object-based attention were indeed required then the determination of the referent would necessarily involve the application of sortal concepts, since object-based attention initiates top-down cognitive effects on visual processing. I also examine Mohan Matthen’s claim that reference to objects is established only through the visual processing in the dorsal visual stream and argue that although it is true that processing in the dorsal stream can determine reference, a thesis that goes against Campbell’s view that the determination of the referent requires conscious attention, processing along the ventral visual stream can also establish the reference of perceptual demonstratives. It also claim that Matthen’s account of dorsal processing underestimates the kind of information processed along the dorsal stream and this has some implications regarding perceptual demonstratives reference fixing.

缺位与越位的思考——医疗保健体制改革的定位

政府的缺位和医院的越位是目前医疗体制改革的症结所在。政府将医院推向市场,意味着政府放弃医疗的社会保障职能。医院失去政府的约束和支持,逐利将成为其必然行为。平价医院只是缓和矛盾的一时之计,只要医院不退出市场,看病难、看病贵就难有灵丹妙药,医患关系也将难以和谐。     

To Partition or Not to Partition: Role of Trade-in Price on Consumer Evaluations of Purchases Involving Trade-Ins

Many new purchases involve consumers trading in their old product at the same time, requiring them to assume the dual role of a buyer and a seller in the overall exchange. This research examines how framing the overall exchange as a partitioned transaction with separate prices for the new purchase and the trade-in, or a consolidated transaction with a single net price after accounting for the trade-in price, affects consumer preferences. We find that consumers prefer a partitioned (consolidated) transaction when the relative trade-in price is high (low). Unlike previous explanations based on heuristic processing and differential importance of the trade-in price, our reasoning is that partitioning (vs. consolidating) prices makes salient and enables evaluability of the trade-in price. In the absence of specific referents, consumers rely on the new purchase price to evaluate the merits of the trade-in price. Consistent with our reasoning, we identify boundary conditions for the findings. The presence of a favorable referent for the trade-in and whether the new purchase and the trade-in are (perceived to be) in the same product category attenuate the reliance on the new purchase price as a referent. Our findings have important theoretical and managerial implications.     

Luther's Challenge: The Power of Greed in Our Common Home

When faced with growing poverty, corrupt business practices, and the power of banking houses and lobbyists, Luther drew on his theological anthropology in order to discern the devastating power of greed in human relationships. And yet, as he admitted, greed was and is a clever master of human ambition, accepted by leaders in church, commerce, and government. His teaching on the power of greed was in continuity with the Christian tradition and yet broke new ground in his recognition that this vice possesses a social, institutional nature.     

The Preference for Pointing With the Hand Is Not Universal

Pointing is a cornerstone of human communication, but does it take the same form in all cultures? Manual pointing with the index finger appears to be used universally, and it is often assumed to be universally preferred over other forms. Non‐manual pointing with the head and face has also been widely attested, but it is usually considered of marginal significance, both empirically and theoretically. Here, we challenge this assumed marginality. Using a novel communication task, we investigated pointing preferences in the Yupno of Papua New Guinea and in U.S. undergraduates. Speakers in both groups pointed at similar rates, but form preferences differed starkly: The Yupno participants used non‐manual pointing (nose‐ and head‐pointing) numerically more often than manual pointing, whereas the U.S. participants stuck unwaveringly to index‐finger pointing. The findings raise questions about why groups differ in their pointing preferences and, more broadly, about why humans communicate in the ways they do.     

Conceptual agreement theory

For some time now, psychological inquiry on reference has assumed that reference is achieved through causal links between words and entities (i.e., direct reference). In this view, meaning is not relevant for reference or co-reference. We argue that this view may be germane to concrete objects, but not to diffuse objects (that lack clear spatio-temporal limits, thus preventing the use of direct reference in interactions). Here, we propose that meaning is the relevant dimension when referring to diffuse entities, and introduce Conceptual Agreement Theory (CAT). CAT is a mathematized theory of meaning that specifies the conditions under which two individuals (or one individual at two points in time) will infer they share a diffuse referent. We present the theory, and use stereotype stability and public opinion as case studies to illustrate the theory’s use and scope.     

中医药发展的挤出效应及制度耦合

制度与制度之间常常存在挤出效应,在医疗卫生服务制度体系内,价格管制、支付制度和医疗卫生服务评价制度等,造成了对中医药政策和中医药应用的挤出.而中医药在我国医改战略转型、医学模式转变和促进制度创新方面具有十分积极的意义.制度耦合是解决制度冲突、制度挤出的基本思想,把中西医统一到卫生事业发展的目标上来,把发挥中医药优势和特色作为中医药政策的核心,构建中西医并重的机制、优化医疗卫生服务制度结构和完善中医药评价体系,是缓解挤出效应,促进中医药发展的制度选择.