In certain finite extensive games with perfect information, Cristina Bicchieri (1989) derives a logical contradiction from the assumptions that players are rational and that they have common knowledge of the theory of the game. She argues that this may account for play outside the Nash equilibrium. She also claims that no inconsistency arises if the players have the minimal beliefs necessary to perform backward induction. We here show that another contradiction can be derived even with minimal beliefs, so there is no paradox of common knowledge specifically. These inconsistencies do not make play outside Nash equilibrium plausible, but rather indicate that the epistemic specification must incorporate a system for belief revision. Whether rationality is common knowledge is not the issue. 相似文献
In an alleged counter‐example to the completeness of rational preferences, a career as a clarinettist is compared with a career in law. It seems reasonable to neither want to judge that the law career is at least as preferred as the clarinet career nor want to judge that the clarinet career is at least as preferred as the law career. The two standard interpretations of examples of this kind are, first, that the examples show that preferences are rationally permitted to be incomplete and, second, that the examples show that preferences are rationally permitted to be indeterminate. In this paper, I shall argue that the difference between these interpretations is crucial for the money‐pump argument for transitivity, which is the standard argument that rational preferences are transitive. I shall argue that the money‐pump argument for transitivity fails if preferences are rationally permitted to be incomplete but that it works if preferences are rationally permitted to be indeterminate and rationally required to be complete. 相似文献
The vagueness objection seems to block any moderate answer to the Special Composition Question leaving us with the two extreme alternatives that there either is no composite object or that any set of things compose an object. In this technical paper I introduce the notion of causal objects and a definition of a predicate that permits the set of all parts to be divided into equivalence classes. On this view we can use equivalence classes of parts to define the notion of composite objects why vagueness is blocked. The block works in a hypothetical domain where all parts have a cause so the aim is not to suggest empirically detectable parts and composites, nor to claim any kind of existence of the things being defined, but to present a consistent account of a possible moderate answer to the Special Composition Question that avoids the vagueness objection. The underlying idea is that an object, as such, is not caused whereas its parts are. For example, if we have three caused parts A, B and C constituting the composite D, we have three things that are caused (A, B and C) whereas the composite D has no cause over and above the three causes of A, B and C.
Clinical studies of children with autism spectrum disorder (ASD) provide evidence for poorer neuropsychological performance within specific domains compared to age, gender, and sometimes IQ-matched controls. Since recent evidence suggests that autistic symptoms form a spectrum that extends into the general population, it was our goal to evaluate the nature of the relationship between autistic traits and neuropsychological performance across the continuum in the general population. We examined neuropsychological performance across five different domains in 1019 6-to-10-year-old children participating in a population-based study of child development. Autistic traits were assessed when the children were 6 years of age using the Social Responsiveness Scale and ASD diagnoses were obtained via medical records. Neuropsychological functioning was measured using the NEPSY-II-NL and included the domains of attention and executive function, memory and learning, sensorimotor functioning, language, and visuospatial functioning. We found that children with higher autistic traits showed significantly lower neuropsychological performance in all domains investigated and that this association remained even after excluding children with the highest autistic traits or confirmed ASD. When comparing 41 children with confirmed ASD diagnosis to typically developing controls, children with ASD showed significantly lower neuropsychological performance across all domains. Taken together, our results suggest that children with both ASD and subclinical autistic traits have lower neuropsychological performance. Thus, this may provide an understanding of why some children without an ASD diagnosis may require some additional assistance within academic settings. 相似文献
Neuropsychology Review - Cognition in absence epilepsy (AE) is generally considered undisturbed. However, reports on cognitive deficits in AE in recent years have suggested otherwise. This review... 相似文献
The aim of this article is partly to analyze and discuss the ritual traditions in the Norwegian context, called disaster services, which consists in ritualizing as a response to accidents and disasters. Furthermore, we find it relevant to understand these traditions in relation to two aspects of recovery: personal and social recovery. From a practical theological perspective, the new traditions are interesting for the understanding of how the churches work in situations where people have stressful experiences, and for developing an understanding of contemporary religion. 相似文献