Blocking by fixed and variable stimuli: Effects of stimulus distribution on blocking

An experiment with rats compared the ability of fixed and variable duration cues to produce blocking. Rats in group B (Blocking) were trained that both fixed- (F) and variable- (V) duration cues would be followed by food delivery. In a subsequent training stage F and V continued to be reinforced, but F was accompanied by X, and V by Y. In the test phase responding to X and Y was examined. Control group O (Overshadowing) received identical treatment, except that F and V were nonreinforced in the first training stage. In group B there was evidence for blocking, but only of X, which had been conditioned in compound with the fixed-duration F; there was no evidence for blocking of Y, which had been conditioned in compound with the variable-duration V. It is suggested that this result may occur because fixed cues reach a higher, more stable asymptote of associative strength than do their variable equivalents.     

On the transformative character of collective intentionality and the uniqueness of the human

Current debates on collective intentionality focus on the cognitive capacities, attitudes, and mental states that enable individuals to take part in joint actions. It is typically assumed that collective intentionality is a capacity which is added to other, pre-existing, capacities of an individual and is exercised in cooperative activities like carrying a table or painting a house together. We call this the additive account because it portrays collective intentionality as a capacity that an individual possesses in addition to her capacity for individual intentionality. We offer an alternative view according to which the primary entity to which collective intentionality has to be ascribed is not the human individual, but a “form of life.” As a feature of a form of life, collective intentionality is something more than the specific capacity exercised by an individual when she cooperates with others. Collective intentionality transforms all the capacities of the bearers of this specific form of life. We thus call our proposal the transformative account of collective intentionality.     

实验性近视模型变迁的回顾及其评价

近视由于其危害性成为科研热点,而近视模型的出现使其研究得到突破。模拟人类近视发展的不同模型无论在近视形成机制还是在物种选择,以及研究部位的变迁中均体现出哲学与科学相结合的过程。汲取不同类型的模型优点,并同人类原型予以比较,对解读近视本质和病因治疗有深远意义。     

The Self‐Administered Witness Interview Tool (SAW‐IT): Enhancing witness recall of workplace incidents

Given the often crucial role of witness evidence in occupational health and safety investigation, statements should be obtained as soon as possible after an incident using best practice methods. The present research systematically tested the efficacy of a novel Self‐Administered Witness Interview Tool (SAW‐IT), an adapted version of the Self‐Administered Interview designed to elicit comprehensive information from witnesses to industrial events. The present study also examined the effect of schematic processing on witness recall. Results indicate that the SAW‐IT elicited significantly more correct details, as well as more precise information than a traditional incident report form. Contextual information about a worker's safety history biased the reports of participant witnesses, confirming that witnesses should be shielded from extraneous post‐event information prior to reporting. Importantly, these results demonstrate that the SAW‐IT can enhance the quality of witness reports.     

中外两种推理理论的实验比较研究

通过两个实验对中国学者提出的“推理题与推理者的推理知识双重结构模型”和Evans提出的“双重加工理论”进行了实验比较研究。实验一通过两种评定方法对相应性质命题进行评定后所得实验结果表明Evans等(1983)有关“信念效应”研究中的“结论可信性”变量可以视为与胡竹菁等(1996)实验中的“内容正确性”变量是同一性质的变量; 实验二根据“形式正确性”和“内容正确性”两个自变量设计的推理实验结果与Evans等(1983)的研究结果基本一致; 但增加“内容熟悉性”这一自变量设计的推理实验结果表明“推理题与推理者的推理知识双重结构模型”比Evans提出的“双重加工理论”能更好地解释推理者对性质三段论的推理结果。     

Religiosity and Premarital Sexual Behaviors Among Adolescents: An Analysis of Functional Form

While numerous studies show a persistent inverse association between religion variables and adolescents’ sexual behaviors, the nature of this relationship is not well understood. Specifically, many previous studies presuppose that the associations between adolescent religiosity and sexual behaviors are linear. However, a number of studies have also identified important nonlinearities of religious influence during adolescence, with highly religious individuals being distinct from their peers. Incorporating this knowledge into a theoretically motivated modeling approach, this article provides a comparative analysis of functional forms describing the relationships between religiosity and adolescent sexual behaviors. Using data from two waves of the National Study of Youth and Religion, a linear functional form is compared with nonlinear alternatives that link multiple religion measures to outcomes of sexual activity. Results show that the majority of these relationships are best defined by nonlinear functional forms, suggesting that the influence of religiosity increases as individuals become more religious.     

Autism as a Form of Life: Wittgenstein and the Psychological Coherence of Autism

Autism is often taken to be a specific kind of mind. The dominant neuro‐cognitivist approach explains this via static processing traits framed in terms of hyper‐systemising and hypo‐empathising. By contrast, Wittgenstein‐inspired commentators argue that the coherence of autism arises relationally, from intersubjective disruption that hinders access to a shared world of linguistic meaning. This paper argues that both camps are unduly reductionistic and conflict with emerging evidence, due in part to unjustifiably assuming a deficit‐based framing of autism. It then develops a new Wittgensteinian account—autism as a different form of life—which avoids these issues. Rather than autistic systemising being the basis of autistic cognition, it is taken to be a reaction to pre‐epistemic and semantic anxieties that come with developing as a minority within a different form of life. This re‐framing can provide a coherent account of the autistic mind, and has significant conceptual, practical, and ethical implications.     

Supervaluationism and Logical Consequence: A Third Way

It is often assumed that the supervaluationist theory of vagueness is committed to a global notion of logical consequence, in contrast with the local notion characteristic of modal logics. There are, at least, two problems related to the global notion of consequence. First, it brings some counterexamples to classically valid patterns of inference. Second, it is subject to an objection related to higher-order vagueness. This paper explores a third notion of logical consequence, and discusses its adequacy for the supervaluationist theory. The paper proceeds in two steps. In the first step, the paper provides a deductive notion of consequence for global validity using the tableaux method. In the second step, the paper provides a notion of logical consequence which is an alternative to global validity, and discusses i) whether it is acceptable to the supervaluationist and ii) whether it plays a better role in a theory of vagueness in the face of the problems related to the global notion.