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1.
Two experiments investigated the role of spatial prototypes in estimates of location. In Experiment 1 (N = 144), children and adults learned the locations of 20 objects in an open, square box designed to look like a model house. In two conditions, opaque lines or walls divided the house into four regions, and in the other condition, no boundaries were present. Following learning, the dots marking the locations were removed, and participants attempted to replace the objects. Children and adults overestimated distances between target locations in different regions. Contrary to Huttenlocher, Hedges, and Duncan's hierarchical theory of spatial memory, none of the groups displaced the objects toward the region centers. In Experiment 2 (N = 96), boundaries were removed during testing to determine whether children and adults were more likely to displace objects toward region centers when uncertainty about location increased. Again, all age groups overestimated distances between target objects in different regions. In addition, adults and 11-year-olds in the most salient boundary condition displaced objects toward the region centers. Discussion focuses on the implications of these results for understanding how children and adults estimate location. 相似文献
2.
The present study examined developmental differences in the effect of route extensity on the memory for the locations of objects in a spatial array. Kindergarten and adult subjects were trained to remember the locations of 4 objects. During this training, objects were either connected by a combination of indirect, looped train tracks and direct train tracks (experimental subjects) or connected by entirely direct train-track routes (control subjects). Analyses of actual interobject distances, from subjects' reproductions of object locations on a response board (without train tracks), revealed that children, but not adults, distort distance in terms of the nature of travel observed between objects. Further testing revealed that differences in the amount of time taken for travel could not account for the results obtained with children. 相似文献
3.
Children ranging in age from 9 to 13 years made judgments of proportion with a variety of graphical elements in 2 experiments. Younger children can be misled by irrelevant dimensions of objects used to portray magnitudes and proportions, but older children make their judgments like adults, ignoring or accommodating the extra dimensions. Although the psychophysical function for older children and adults is approximately linear, closer inspection reveals a complex pattern of bias that is not captured by traditional psychophysical models. A characteristic pattern of over- and underestimation was observed and also turns out to be present, but previously unnoticed, in judgments made by adults. The pattern of bias is consistent with the view that the visual system extracts real or virtual axes of symmetry and that subjects use these, in addition to the object boundaries, as points of reference when making their judgments. A model that assumes repulsion of judgments away from these reference points is described and fitted to the children's data. The model is motivated by both neurophysiological and cognitive considerations. 相似文献
4.
Younger children’s free recall from episodic memory is typically less organized than recall by older children. To investigate if and how repeated learning opportunities help children use organizational strategies that improve recall, the authors analyzed category clustering across four study-test cycles. Seven-year-olds, 10-year-olds, and young adults (N = 150) studied categorically related words for a free-recall task. The cognitive processes underlying recall and clustering were measured with a multinomial model. The modeling revealed that developmental differences emerged particularly in the rate of learning to encode words as categorical clusters. The learning curves showed a common pattern across age groups, indicating developmental invariance. Memory for individual items also contributed to developmental differences and was the only factor driving 7-year-olds’ moderate improvements in recall. 相似文献
5.
David H. Uttal 《Child development》1996,67(6):2763-2779
Young children have performed poorly in spatial tasks that require the scaling and reconstruction of a configuration. The present research investigated whether or not children's reconstructions nevertheless preserved the relative positions of objects within the configuration. In Experiment 1, preschoolers (ages 4 and 5), young elementary school children (ages 6 and 7), and adults were asked to reconstruct symmetric configurations of six objects that were depicted on simple maps of an empty room. Most subjects preserved the overall configuration of objects, but preschoolers placed the objects far from the correct locations. Many of the preschoolers' reconstructions contained systematic transformations; many reconstructions were off-center and too small or too large. In Experiment 2, the configurations were asymmetric, and preschoolers performed substantially worse than in Experiment 1. Experiment 3 demonstrated that preschoolers could reconstruct the asymmetric configurations when scaling was not required. Taken together, the results reveal that even young children can represent and transform an entire configuration of objects. At the same time, the results reveal important developmental differences. 相似文献
6.
Two experiments investigated response tendencies of preschoolers toward yes–no questions about actions. Two hundred 2‐ to 5‐year‐old children were asked questions concerning actions commonly associated with particular objects (e.g., drinking from a cup) and actions not commonly associated with particular objects (e.g., kicking a toothbrush). The impact of delay and comprehension of questions were also investigated. Results revealed a consistent developmental transition: Younger children tended to display a yes bias whereas older children did not display a bias unless they faced incomprehensible questions, in which case they displayed a nay‐saying bias. Delay shifted children's responses in such a way that “no” answers were given more often. These findings hold important implications regarding the use of yes–no questions with children. 相似文献
7.
When pre‐school children count an array of objects containing one that is broken in half, most count the halves as two separate objects. Two studies explore this predisposition to count discrete physical objects (DPOs) and investigate its robustness in the face of various manipulations. In Experiment 1, 32 children aged three–four years counted arrays of intact and broken objects, comprising familiar objects known to be separable (e.g. a lolly and its stick) or non‐separable (e.g. a toothbrush). The meaning of presenting a broken object was made explicit as some children saw a ‘naughty Ted’ causing the breakage. The DPO bias was robust in the face of these familiarity and context manipulations. Experiment 2 tested whether the DPO bias could be overcome by teaching children a strategy for counting two parts as one whole and also considered whether children’s prior knowledge of cardinality was associated with the bias. Only eight children (33%) benefited from the strategy teaching. At a second post‐test two to three days later, half of these had reverted to their DPO bias. Cardinality knowledge was not associated with improvement. The robustness of the bias to count DPOs is discussed in terms of innate predispositions and abstracted representations. 相似文献
8.
Children's ability to recognize object shape is foundational for successful early word learning. However, the prototypical shape of objects may not be easily accessible—take margarita glasses, for instance. The current study examined 304 U.S. children 17- to 42-month-old (152 females) from 2017 to 2020, asking how shape, age, and vocabulary abilities predict recognition of everyday objects. Children's ability to recognize objects increases with age and vocabulary, replicating prior work. Moreover, performance was partially moderated by object's typicality and shape features, and children's own attention to shape (shape bias) may mediate the effect, especially with prototypically shaped objects. The current study highlights how both child-specific variables and context features interact to shape language abilities, underscoring the emergent and multi-causal nature of word learning. 相似文献
9.
Six match-to-sample picture/object selection experiments were designed to explore children's knowledge about superordinate words (e.g., "food") and how they acquire this knowledge. Three factors were found to influence the learning and extension of superordinate words in 3- to 5-year-old children (N = 230): The number of standards (one versus two), the type of standards presented (from different basic-level categories versus from the same basic-level category), and the nature of the object representations used (pictures versus objects). A different pattern of superordinate word acquisition was found between 3-year-olds and 4- and 5-year-olds. Although 4- and 5-year-olds could learn and extend novel words to superordinate categories in the presence of two picture exemplars from different categories or a single three-dimensional (3-D) exemplar, 3-year-olds could do so only in the presence of two 3-D exemplars. These findings indicate that young children's acquisition of superordinate words is influenced by multiple factors and that there is a developmental progression from multiple exemplars to single exemplars in superordinate word learning. 相似文献
10.
In 2 experiments, 7- and 8-year-old children and college students performed a letter-detection task in which reaction time was the dependent variable. Expectancy was manipulated by varying the probability the stimulus would appear at the center of an imaginary circle rather than along the perimeter. Although both age groups responded consistently faster to stimuli presented in expected locations than to stimuli presented in unexpected locations, this expectancy effect was larger for the children than it was for the college students. In a third experiment, these results were replicated using a luminance-detection task with 5-year-olds, 8-year-olds, and college students as subjects. It was concluded that children as well as adults are able to expand or contract the breadth of their attentional focus in accordance with task demands and that there is a developmental change in the efficiency with which a stimulus presented in an otherwise empty field can be located. Furthermore, it was suggested that children may be more disrupted by the occurrence of an unexpected event than adults are. 相似文献
11.
Do young children always say yes to yes-no questions? A metadevelopmental study of the affirmation bias 总被引：1，自引：0，他引：1
The present study investigated whether yes-no questions would lead to a yes bias in young children. Four experiments were conducted in which 2- to 5-year-olds were asked comprehensible and incomprehensible yes-no questions concerning familiar and unfamiliar objects. Consistent findings were obtained: (a) 2-year-olds displayed a consistent yes bias; (b) 4- and 5-year-olds exhibited no response bias toward comprehensible questions and a nay-saying bias toward incomprehensible questions; and (c) 3-year-olds' results were mixed, suggesting that the age of 3 years is a period of developmental transition in response tendency toward yes-no questions. The findings suggest that yes-no questions are suitable for older children, providing they are comprehensible, but may result in biased results when used with younger children and when incomprehensible. 相似文献
12.
Adults’ attraction to rare objects has been variously attributed to fundamental biases related to resource availability, self-related needs, or beliefs about social and market forces. The current three studies investigated the scarcity bias in 11- and 14-month-old infants, and 3- to 6-year-old children (N = 129). With slight methodological modifications, participants had to choose between one of 10 same-kind-items (abundant resource), or the only one of a different kind (scarce resource). It was found that a robust preference for the scarce resource appeared only at age 5 years. Thus, although a scarcity bias is not present in infancy, it emerges prior to comprehension of market forces. Possible accounts of this developmental finding are discussed. 相似文献
13.
There is substantial evidence that clinically referred and nonreferred high-anxious adults selectively shift attention toward threatening stimuli. In contrast, low-anxious adults shift attention away from threatening stimuli. Recent evidence suggests that clinically referred anxious children also selectively attend to threatening information. The present study tested for the presence of such a bias in a nonreferred sample of high-anxious children and also included the first adequate test for an attentional bias away from threat among low-anxious children. 20 high- and 20 low-test-anxious children, 11–14 years of age, completed a task in which visual attention was indexed by latency to detect probes following emotionally threatening and neutral words. Results supported the predicted attentional bias toward threat cues among high-test-anxious children. Unexpectedly, the predicted attentional bias away from threat cues was found only among low-test-anxious boys. Low-test-anxious girls attended equally to threatening and neutral words. In sum, selective attention mechanisms influence children's processing of threatening information and may play a role in the regulation and dysregulation of childhood anxiety. 相似文献
14.
Ingrid Pramling Samuelsson Maj Asplund Carlsson Bengt Olsson Niklas Pramling Cecilia Wallerstedt 《International Journal of Early Years Education》2009,17(2):119-135
In this article, the theoretical framework of developmental pedagogy is presented as a tool in studying and developing children’s knowing within the arts. The domains of art focused on are music, poetry and dance/aesthetic movement. Through empirical examples from a large‐scale research project, we illustrate the tools of developmental pedagogy and show how this perspective contributes to our understanding of children’s learning of music, dance and poetry. More specifically, we will analyse: (a) the important role of the teacher in children’s learning within the arts; (b) the importance of conversing when learning the arts; (c) what constitutes the knowledge, what we refer to as ‘learning objects’, to be appropriated within the three domains of art focused on; and (d) how to conceive of progression in children’s knowing within the arts. 相似文献
15.
The present study addressed the question of the effects of developmental positive bias and repeated experiences of failure on the self-perception of mainstreamed first-and second-grade Israeli children with learning disabilities. The self-perceptions of 44 children with learning disabilities and their 36 nondisabled classmates were assessed. In addition, teachers' evaluations and objective measures of cognitive performance and social acceptance were gathered. The children with learning disabilities were found to have a greater positive bias and lower self-perception in the cognitive competence domain than their normally achieving peers. Self-perceptions of peer acceptance among children with learning disabilities are similar to their normally achieving peers' self-perceptions, in spite of their significantly lower sociometric ratings and teacher evaluations in the social domain. These findings are analyzed in the context of the globality-specificity dimension of self-perceptions at the age level studied. The obtained pattern of self-perceptions is discussed in the light of the interrelationships between cognitive deficit and experimental factors among mainstreamed first- and second-grade children. 相似文献
16.
Studies with adults suggest that implicit preferences favoring White versus Black individuals can be reduced through exposure to positive Black exemplars. However, it remains unclear whether developmental differences exist in the capacity for these biases to be changed. This study included 369 children and examined whether their implicit racial bias would be reduced following exposure to positive Black exemplars. Results showed that children's implicit pro‐White bias was reduced following exposure to positive Black exemplars, but only for older children (Mage = ~10 years). Younger children's (Mage = ~7 years) implicit bias was not affected by this intervention. These results suggest developmental differences in the malleability of implicit racial biases and point to possible age differences in intervention effectiveness. 相似文献
17.
This study provides evidence that children give priority to ownership when judging who should use an object. Children (N = 269) and adults (N = 154) considered disputes over objects. In disputes between a character using an object and the owner of the object, children, as young as 3 years and as old as 7 years, sided with the owner, and did so more than adults. However, children aged 4 and older disregarded owners' rights in dilemmas where these were pitted against the need to prevent harm. These findings suggest that ownership is central in children's judgments about object use and constrain developmental accounts of how children acquire an appreciation of ownership. 相似文献
18.
2 studies of word learning are reported. In Study 1, 24-month-old children and 2 adults played with 3 nameless objects. These objects were placed in a clear box along with a novel nameless object. The adults then displayed excitement about the contents of the box and modeled a new word. Comparison with a control condition indicated significant learning of the new word for the novel object. Study 2 followed the same procedure with one difference: the children played with the novel object while the adults were absent. Thus, at the time of the language model the target object was novel only to the adults, not to the children. Again subjects displayed significant learning of the new word. This last finding suggests that 24-month-old children understand that adults use language for things that are novel to the discourse context and that this novelty is determined from the speaker's point of view. 相似文献
19.
Attention to novel objects during verb learning 总被引：1，自引：0，他引：1
Three experiments provided evidence that 3.5- to 4-year-old English-speaking children (N = 72) attend to the appearances of novel objects, not only when they hear a novel noun, but also when they hear a novel verb. Children learning nouns in the context of novel, moving objects attended exclusively to the appearances of objects, even though nouns were also related to the motions of those objects. Children learning verbs attended equally to the appearances of objects and their motions. The latter result contrasted with the results from adults (N = 20), who focused more strongly on motions than on the appearances of objects when learning verbs. When familiar objects were instead employed, child verb learners attended more to motions than to the appearances of objects. Children may attend to novel objects during verb learning because knowledge of an object may be prerequisite to understanding what a verb means in the context of that object. 相似文献
20.
Object Properties and Knowledge in Early Lexical Learning 总被引：2，自引：0，他引：2
The ease with which young children learn object nouns suggests that they possess strategies to identify properties critical to lexical category membership. In previous work, young children used a same-shape criterion to extend new count nouns. The present research tested the generality of this shape bias. 2- and 3-year-olds were asked either to extend a novel count noun to new instances, or to choose unnamed objects to go together. The objects varied in shape, size, and texture. For half of the subjects, the objects had eyes--a property strongly associated with certain material kinds. If young children know this association, they should attend to texture as well as shape in classifying objects with eyes. With named objects only, both 2- and 3-year-old children classified eyeless objects by shape and objects with eyes by both shape and texture. The results suggest that very young children possess considerable knowledge about conditional relations between kinds of perceptual properties. Knowledge of such conditional relations may aid children in forming new categories and thus in discovering new word meanings. 相似文献