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Early cognitive development benefits from nonlinguistic representations of skeletal sets of domain-specific principles and complementary domain-relevant data abstraction processes. The principles outline the domain, identify relevant inputs, and structure coherently what is learned. Knowledge acquisition within the domain is a joint function of such domain-specific principles and domain-general learning mechanisms. Two examples of early learning illustrate this. Skeletal preverbal counting principles help children sort different linguistic strings into those that function as the conventional count-word as opposed to labels for objects in the child's linguistic community. Skeletal causal principles, working with complementary perceptual processes that abstract information about biological and nonbiological conditions and patterns of movement, lead to the rapid acquisition of knowledge about the animate-inanimate distinction. By 3 years of age children con soy whether photographs of unfamiliar nonmammalian animals, mammals, statues, and wheeled objects portray objects capable or incapable of self-generated motion. They also generate answers to questions about the insides of animate items more readily than ones about the insides of inanimate items. Although these children already ore articulate about matters relevant to a theory of action, their limited knowledge of growth illustrates that early skeletal principles do not rule out the need to acquire new principles, in this case ones that underlie a biological account of animacy (Carey, 1985).  相似文献   

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Undergraduates' button presses occasionally produced points exchangeable for money. Left and right buttons were initially correlated with multiple random-ratio (RR) and random-interval (RI) components, respectively. During interruptions of the multiple schedule, students filled out sentence-completion guess sheets describing the schedules, and points were contingent upon the accuracy of guesses. To test for sensitivity to schedule contingencies, schedule components were repeatedly reversed between the two buttons. Pressing rates were consistently higher in ratio than in interval components even when feedback for guesses was discontinued, demonstrating sensitivity to the difference between ratio and interval contingencies. The question was whether this sensitivity was based directly on the contingencies or whether it was rule-governed. For two students, when multiple RR RI schedules were changed to multiple RI RI schedules, rates became low in both components of the multiple RI RI schedule; however, subsequent prevention of point deliveries for the first few responses in any component produced high rates in that component. For a third student, response rates became higher in the RI component that provided the lower rate of reinforcement. In each case, performance was inconsistent with typical effects of the respective schedules with nonhuman organisms; it was therefore plausible to conclude that the apparently contingency-governed performances were instead rule-governed.  相似文献   

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We report the results from two experiments examining native and non-native German speakers’ sensitivity to crossover constraints on pronoun resolution. Our critical stimuli sentences contained personal pronouns in either strong (SCO) or weak crossover (WCO) configurations. Using eye-movement monitoring during reading and a gender-mismatch paradigm, Experiment 1 investigated whether a fronted wh-phrase would be considered as a potential antecedent for a pronoun intervening between the wh-phrase and its canonical position. Both native and non-native readers initially attempted coreference in WCO but not in SCO configurations, as evidenced by early gender-mismatch effects in our WCO conditions. Experiment 2 was an offline antecedent judgement task whose results mirrored the SCO/WCO asymmetry observed in our reading-time data. Taken together, our results show that the SCO constraint immediately restricts pronoun interpretation in both native and non-native comprehension, and further suggest that SCO and WCO constraints derive from different sources.  相似文献   

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Language and culture endow humans with access to conceptual information that far exceeds any which could be accessed by a non‐human animal. Yet, it is possible that, even without language or specific experiences, non‐human animals represent and infer some aspects of similarity relations between objects in the same way as humans. Here, we show that monkeys’ discrimination sensitivity when identifying images of animals is predicted by established measures of semantic similarity derived from human conceptual judgments. We used metrics from computer vision and computational neuroscience to show that monkeys’ and humans’ performance cannot be explained by low‐level visual similarity alone. The results demonstrate that at least some of the underlying structure of object representations in humans is shared with non‐human primates, at an abstract level that extends beyond low‐level visual similarity. Because the monkeys had no experience with the objects we tested, the results suggest that monkeys and humans share a primitive representation of object similarity that is independent of formal knowledge and cultural experience, and likely derived from common evolutionary constraints on object representation.  相似文献   

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It is a crucial question whether practicalities should have an impact in developing an applicable theory of human rights—and if, how (far) such constraints can be justified. In the course of the non-ideal turn of today’s political philosophy, any entitlements (and social entitlements in particular) stand under the proviso of practical feasibility. It would, after all, be unreasonable to demand something which is, under the given political and economic circumstances, unachievable. Thus, many theorist—particularly those belonging to the liberal camp—begin to question the very idea of social human rights on grounds of practical infeasibility. This new minimalism about human rights motivates an immanent critique arguing that even if we were to proceed from a liberal framework, we would still wind up with a justification of the full list of social human rights. In the first part of this article, I will present the central positions of the debate presented by Amartya Sen, Maurice Cranston and Pablo Gilabert. Initially arguing that a minimalism of human rights on grounds of practical infeasibility alone proves unjustifiable, however, I shall open up two further perspectives, which allow practical infeasibilities to become normatively determinate. Discussing contributions by James Griffin and Charles Beitz, I will defend the thesis that certain feasibility constraints on (social) human rights can be justified on the condition that they are grounded either in a normative idea of the appropriate implementation of these rights or in reflection of the practical function of a theory of human rights.  相似文献   

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In this research we examine the relation between executive function (EF) and false-belief (FB) understanding in young children. Specifically, we proposed that performance on tasks combining 2 executive demands: (a) working memory and (b) inhibitory control would be most predictive of performance on FB tasks. Forty-eight children between the ages of 3 and 5 years were given a battery of EF and FB measures. As predicted we found that performance on executive tasks that combined demands for memory and inhibitory control were highly predictive of performance on FB tasks. To further test the relation of EF and FB understanding we also introduced an experimental manipulation designed to reduce the working memory demands of FB tasks. This manipulation did not significantly improve performance. The results from this study provide support for the relation between EF and FB understanding, although the exact nature of the relation requires further clarification.  相似文献   

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The developmental sequence of the types of orthographic knowledge that children acquire early in reading development is unclear. Following findings of skilled reading, the orthographic constraints of positional frequency and feedback consistency were explored with a wordlikeness judgement task for grades 1–3 English-speaking children. The data provide evidence for the early development of sensitivity to positional frequency, but not sound-spelling consistency. However, sensitivity to each type of orthographic structure was predicted by rapid naming and sensitivity to consistency was predicted by phonological awareness. As well, sensitivity to each type of constraint was related to word reading fluency.  相似文献   

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进化发展心理学:发展中的人类本性   总被引:1,自引:0,他引:1  
进化发展心理学研究社会能力与认知能力发展背后的基因与环境机制,以及基因与环境机制在特定社会文化中的表现。进化发展心理学探讨的主要问题与设计到的主要概念包括:(1)自然选择在毕生发展的早期阶段发挥作用;(2)进化发展心理学特别重视适应在婴儿期及儿童期发展中的作用;(3)儿童期的延长有助于儿童学习人类社会的复杂性;(4)发展背景的方法可以用来理解成人外显行为的进化起源;(5)基因与环境因素相互影响约束个体发展;(6)认知能力与行为活动敏感于早期环境,但二者发展也具有可塑性  相似文献   

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Some infants experience atypical levels of over-responsivity to sensations, which limit their ability to interact and explore their environment. Yet, little is known about typical development of over-responsivity during infancy or whether the presence of extreme over-responsivity in infancy is a predictor of clinically significant sensory over-responsivity (SOR) at school-age. This study followed a representative sample of children (n = 521, 47% boys) at four time points from infancy (mean ages in months Year 1 = 18.23, Year 2 = 30.39, Year 3 = 39.40) to elementary school-age (mean age = 7.97 years). SOR was measured via parent report. A latent growth curve model predicting SOR at school age from the intercept and slope of Sensory Sensitivity between Years 1–3 showed excellent fit with the data. Both early sensory sensitivities and change in early sensitivities were associated with SOR status at school-age.  相似文献   

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It is now relatively commonplace to advocate the need for some sorts of constraints on learning and knowledge acquisition. The critical issues to cognitive science concern the sorts of constraints that are able to best model various phenomena of learning and development. Four types of constraints on learning are proposed to be used as an interpretative framework within which to: 1. Better understand the nature of current research: 2. Allow the exploration of alternative models of learning related phenomena, and 3. See more clearly needs for further research. Superficially similar learning phenomena can be modeled by very different configurations of underlying constraints with strong implications for the sorts of representational states that are involved. Each of the five papers in this issue (Brown, Gelman, Markman, Newport, and Spelke) is considered in terms of the configuration of constraints after which each author intends to model their phenomena and in terms of alternate configurations. The papers are construed as illustrating a diverse set of models of how constraints might guide learning, and while the evidence generally favors the configurations suggested by the authors, in each case alternative models are possible and motivate quite specific future research questions. More broadly, it is suggested that asking detailed questions about the sorts of Constraints types that could potentially model complex cases of natural knowledge acquisition helps motivate fundamental questions about learning and the nature of knowledge and that the five papers in this issue are superb examples of how adopting this kind of perspective has been fruitful research orientation.  相似文献   

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ABSTRACT— Relations between developments in neural structures and changes in memory in infancy are a relatively recent focus of research. Greater knowledge about brain development, as well as methodological advances such as combined use of behavioral and electrophysiological techniques, have led to the generation and testing of specific hypotheses regarding sources of age-related change. Theory and data converge to suggest that the early-stage processes of encoding and consolidation are a significant source of age-related variability in memory early in life. Additional research is needed to determine how these processes change and interact with myriad other determinants of recall.  相似文献   

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