共查询到20条相似文献，搜索用时 31 毫秒
1.
We examined the role of object kind familiarity (i.e., knowledge of a count noun for an object) on preschoolers' sensitivity to the relation between a novel word's form class (adjective or count noun) and its reference (to a material kind-property or to an object kind). We used a forced-choice match-to-target task, in which children learned a word for one object (e.g., a metal cup), and then chose between 2 other objects. One was from the same object kind but a different material kind (with different related properties, such as color and texture; e.g., a white plastic cup); the other was from a different object kind but the same material kind (with the same related properties; e.g., a metal spoon). In Experiment 1, children learned either a count noun (e.g., "This is a zav") or an adjective (e.g., "This is a zav one"). Within each form class, we crossed the familiarity of the referent object kind (familiar and unfamiliar) with the age of the children (2- and 4-year-olds). The principal finding was that in interpreting an adjective, 4-year-olds were more likely to choose the object sharing material kind with the target if the target was familiar than if it was unfamiliar. No such familiarity effect was evident among 2-year-olds. In Experiment 2, we employed a more unambiguously adjectival frame (e.g., "This is a very zav-ish one"), and replicated the results of Experiment 1. We interpret the results in terms of 2 proposed word learning biases: one that learners initially expect any word applied to an unfamiliar object to refer to a (basic-level) kind of object, and a second that learners prefer words to contrast in meaning. We consider several interpretations of the observed age difference. 相似文献
2.
Eighteen-month-olds' spatial categorization was tested when hearing a novel spatial word. Infants formed an abstract categorical representation of support (i.e., placing 1 object on another) when hearing a novel spatial particle during habituation but not when viewing the events in silence. Infants with a productive spatial vocabulary did not discriminate the support relation when hearing the same novel word as a count noun. However, infants who were not yet producing spatial words did attend to the support relation when presented with the novel count noun. The results indicate that 18-month-olds can use a novel particle (possibly assisted by a familiar verb) to facilitate their spatial categorization but that the specificity of this effect varies with infants' acquisition of spatial language. 相似文献
3.
Acquiring Proper Nouns for Familiar and Unfamiliar Animate Objects: Two-Year-Olds' Word-learning Biases 总被引：1，自引：0，他引：1
D. Geoffrey Hall 《Child development》1991,62(5):1142-1154
In 2 studies, 2-year-old children learned a novel word modeled as a proper noun (e.g., "This is Zav") for an animate stuffed toy. Children who learned the word for a familiar object (i.e., one for which they knew a basic-level count noun for the kind) interpreted the word appropriately as a proper noun reliably more often than children who learned the word for an unfamiliar object (i.e., one for which they did not know such a count noun). When the creature was familiar, children typically interpreted the novel word as if it were a proper noun referring uniquely to the labeled individual. When the animal was unfamiliar, children frequently interpreted the word as if it were a count noun referring to a kind of object. Children's spontaneous comments during the tasks provided striking additional evidence that their interpretations of the proper noun varied with the familiarity of the object. The results suggest that young children's sensitivity to the form class of proper nouns is affected by the familiarity of the referent object. The findings are discussed in terms of interpretative biases in word learning. 相似文献
4.
周杰 《牡丹江教育学院学报》2011,(6):24-25
关于儿童母语词汇习得,不同的研究者提出不同的理论解释。一部分研究者认为儿童是在一定制约条件影响下有选择有顺序地习得母语词汇的。本文主要探讨其中的三个制约条件：整体假设制约条件（the Whole Object Constraint）,分类假设制约条件（the Taxonomic Constraint）,互斥假设制约条件（theMutual Exclusivity Constraint）。虽然这些制约条件在一定程度上有助于儿童母语词汇的习得,但由于多种因素,该理论仍有其局限性,尚需大量的研究。 相似文献
5.
In 4 experiments, we examined how young children incorporate new word meanings into their lexicons. 2-year-olds were each taught a new noun for an object that already had a known label (e.g., a "fep" for a dog). Children's interpretations of the new nouns were assessed by asking subjects to select the named toy from an array of 4 toys (e.g., "Point to a fep"). The experiments were designed to determine which of several possible semantic relations between novel and familiar words was most consistent with children's performance. It was found that children often seemed to interpret the new word as referring to a subordinate of the known category. This tendency was reduced when the named object could sensibly receive a proper name (e.g., when the named object was a stuffed animal), particularly when children had to consider both the familiar and the novel label for the object in the same session. Although not all alternative explanations have been ruled out, these results suggest that, from a very young age, children may spontaneously form language hierarchies when they hear a novel work for an object that already has a familiar name. 相似文献
6.
Two language acquisition processes (comprehension preceding production of word order, the noun bias) were examined in 2- and 3-year-old children (n=10) with autistic spectrum disorder and in typically developing 21-month-olds (n=13). Intermodal preferential looking was used to assess comprehension of subject-verb-object word order and the tendency to map novel words onto objects rather than actions. Spontaneous speech samples were also collected. Results demonstrated significant comprehension of word order in both groups well before production. Moreover, children in both groups consistently showed the noun bias. Comprehension preceding production and the noun bias appear to be robust processes of language acquisition, observable in both typical and language-impaired populations. 相似文献
7.
This study examined word identification, phonological recoding efficiency, familiar word reading efficiency, orthographic choice for familiar words and serial naming speed as potential correlates of orthographic learning following silent reading in third‐grade children. Children silently read a series of short stories, each containing six repetitions of a different target non‐word. They subsequently read target non‐words faster than homophones and preferred target non‐words to homophones in an orthographic choice task, indicating that they had formed functional orthographic representations of the target non‐words through phonologically recoding them during silent story reading. Target non‐word orthographic choice was correlated with all measures bar non‐symbol naming speed. The association between phonological recoding efficiency and orthographic learning lends support to the hypothesis that self‐teaching occurs through phonological recoding even in silent reading. Our findings were not generally consistent with the view that serial naming speed assesses orthographic learning aptitude. 相似文献
8.
While fluent reading is recognized as a primary goal of educational instruction, the methods that best promote the development of fluency remain unclear. Two experiments are reported that examined increases in reading fluency of a novel passage following two types of training. In the context training condition, children learned to read a set of target words in a story context, while in the isolated word training condition, fluency with a target word set was gained from a computerized word naming game. Transfer of fluency to reading these words in a new context was then measured by gains in reading speed, accuracy, and comprehension of a novel story. Results indicated that young readers showed speed benefits on transfer stories following both context and isolated word training, but the increases were larger following context training. 相似文献
9.
D. Geoffrey Hall 《Child development》1994,65(5):1299-1317
4 experiments examined 3- and 4-year-olds' interpretations of novel words applied to familiar objects in the sentence frame, "This Y is X," where X is a novel word, and Y is a familiar basic-level count noun (e.g., "dog", "cup"). These novel words are ambiguous and could be interpreted either as proper names (e.g., "Fred") or as adjectives/mass nouns (e.g., "red"/"lead"). The experiments addressed 2 questions. First, do children appreciate that the words can be construed either as proper names referring to individuals or as adjectives/mass nouns referring to salient properties/material kinds? The results showed that children could easily make either interpretation. Second, what factors affect children's tendency to make either a proper name or an adjective/mass noun interpretation? In the experiments, children learned the novel words for a range of animals and artifacts. Most children who learned the words for typical pets (e.g., a bird) made proper name interpretations, as did the majority of those who learned the words for certain non-pet animals (e.g., a caterpillar) described as possessed by someone, but only about half of those who learned the words for such non-pet animals not so described. Very few children who learned the words for either simple (e.g., a shoe) or complex (e.g., a boat) artifacts made proper name interpretations. The results provide clear evidence of the role of semantic information in constraining children's interpretation of a novel word, and they help to refine an understanding of what counts as a nameable individual for preschoolers. 相似文献
10.
Early in development, many word‐learning phenomena generalize to symbolic gestures. The current study explored whether children avoid lexical overlap in the gestural modality, as they do in the verbal modality, within the context of ambiguous reference. Eighteen‐month‐olds’ interpretations of words and symbolic gestures in a symbol‐disambiguation task (Experiment 1) and a symbol‐learning task (Experiment 2) were investigated. In Experiment 1 (N = 32), children avoided verbal lexical overlap, mapping novel words to unnamed objects; children failed to display this pattern with symbolic gestures. In Experiment 2 (N = 32), 18‐month‐olds mapped both novel words and novel symbolic gestures onto their referents. Implications of these findings for the specialized nature of word learning and the development of lexical overlap avoidance are discussed. 相似文献
11.
Four groups of Dutch readers, (a) beginners, second grade elementary school students with 2 years of reading experience, (b) advanced readers, sixth grade elementary school students with 6 years of reading experience, (c) expert readers, university students with 14 years of reading experience, and (d) poor readers, aged 13 years with 2 years of delay in reading skill, were presented with short stories followed by multiple-choice text comprehension questions. Participants were asked to read the stories for meaning and to circle the letter t whenever it occurred in the text. Five types of detection locations were defined: (1) verb suffix, (2) noun final, (3) intra word, second letter, (4) intra word, prefinal letter, and (5) definite article, final t. Differential detection patterns as a function of reading development were obtained. Beginning readers did not differ in detecting the final t in verbs and nouns, whereas expert readers showed a strong attentional bias to verb suffixes as compared with noun endings. Expert readers missed more intra word letters. In all groups prefinal letters were detected better than second letters in words, thus suggesting a general attentional bias for orthographic information in the second part of Dutch words. The t in the definite article was missed most often in all groups, which suggests sensitivity to word frequency at early stages in reading development. Poor readers did not show differential performance patterns as compared to the other reading groups. The overall developmental pattern can be characterized as a shift from attention for single letter information to attention for more complex morphological information in text. Copyright 2000 Academic Press. 相似文献
12.
Adults process speech incrementally, rapidly identifying spoken words on the basis of initial phonetic information sufficient to distinguish them from alternatives. In this study, infants in the second year also made use of word-initial information to understand fluent speech. The time course of comprehension was examined by tracking infants' eye movements as they looked at pictures in response to familiar spoken words, presented both as whole words in intact form and as partial words in which only the first 300 ms of the word was heard. In Experiment 1, 21-month-old infants (N = 32) recognized partial words as quickly and reliably as they recognized whole words; in Experiment 2, these findings were replicated with 18-month-old infants (N = 32). Combining the data from both experiments, efficiency in spoken word recognition was examined in relation to level of lexical development. Infants with more than 100 words in their productive vocabulary were more accurate in identifying familiar words than were infants with less than 60 words. Grouped by response speed, infants with faster mean reaction times were more accurate in word recognition and also had larger productive vocabularies than infants with slower response latencies. These results show that infants in the second year are capable of incremental speech processing even before entering the vocabulary spurt, and that lexical growth is associated with increased speed and efficiency in understanding spoken language. 相似文献
13.
This research investigated how children interpret the meaning of a new word associated with a familiar artifact. The existing literature has shown that syntactic form-class information plays an important role in making this kind of inference. However, this information is not available to Japanese children, because Japanese language does not have a grammatical distinction between count nouns and mass nouns, proper nouns and common nouns, or singular and plural. In Study 1, 12 three-year-old monolingual Japanese children were tested to examine whether they interpreted a new noun associated with a familiar artifact to be a material name or a new label for the object. They interpreted the new word as a new category label for the object, rather than as a name for the material. How children related the new category to the old familiar one was then examined in Studies 2 and 3. The results of Study 2, in which 24 three-year-olds participated, showed that children could flexibly shift between two interpretations using shape information. When the named object had a typical shape for the familiar category, they mapped the new word to a subordinate category. In contrast, when the shape of the named object was atypical, they mapped the new word to a new category that was mutually exclusive to the familiar category by excluding the named object from the familiar category. In Study 3, 12 three-year-olds were tested to examine relative importance of shape and functional information in this inference process. The results of the three studies suggest that children flexibly recruit clues from multiple sources, but the cluesare weighed in hierarchical order so that they can determine the single most plausible solution in a given situation when different clues suggest different solutions. 相似文献
14.
Kate Cain 《Journal of Research in Reading》2007,30(4):347-359
The ability to derive the meanings of words from supportive story contexts was studied in 45 7‐ to 8‐year‐olds. Children read short stories each containing a different novel word and defined the word at the end of each story. There were three intervention sessions. One group was asked to justify their definition and subsequently received feedback on its accuracy. A second group was given feedback first and asked to explain how the experimenter knew the correct answer. A third (control) received feedback only. In general, practice led to improved performance, with an increased number of children in all groups using the story context to derive meanings for the novel words in a post‐intervention test. Children in the two explanation groups made the greatest gains in definition accuracy. The implications for teaching vocabulary learning skills are discussed. 相似文献
15.
Jared M. J. Berman Susan A. Graham Dallas Callaway Craig G. Chambers 《Child development》2013,84(5):1791-1805
Two experiments examined 4‐ and 5‐year‐olds' use of vocal affect to learn new words. In Experiment 1 (n = 48), children were presented with two unfamiliar objects, first in their original state and then in an altered state (broken or enhanced). An instruction produced with negative, neutral, or positive affect, directed children to find the referent of a novel word. During the novel noun, eye gaze measures indicated that both 4‐ and 5‐year‐olds were more likely to consider an object congruent with vocal affect cues. In Experiment 2, 5‐year‐olds (n = 15) were asked to extend and generalize their initial mapping to new exemplars. Here, 5‐year‐olds generalized these newly mapped labels but only when presented with negative vocal affect. 相似文献
16.
Children's Understanding of Knowledge Acquisition: The Tendency for Children to Report That They Have Always Known What They Have Just Learned 总被引：1，自引：0，他引：1
Children's attention to knowledge-acquisition events was examined in 4 experiments in which children were taught novel facts and subsequently asked how long they had known the new information. In Experiment 1, 4- and 5-year-olds tended to claim they had known novel animal facts for a long time and also reported that other children would know the novel facts. This finding was replicated in Experiment 2, using facts associated with chemistry demonstrations. In Experiments 3 and 4, children were taught new color words. 5-year-olds, but not 4-year-olds, distinguished between novel and familiar color words, reporting they had not known the novel words before the test session, but they had always known the familiar words. 4-year-olds in Experiment 4 were better able to distinguish novel and familiar color words when the teaching of the novel words was an explicit and salient part of the procedure. 相似文献
17.
Three experiments were undertaken to examinesecond and fifth grade Telugu-speaking children's awareness of phonological andorthographic properties of familiar Teluguwords. Experiment 1 focused on the strategies thechildren used in completing word fragments.Experiment 2 examined the children's ability tojudge and generate rhyming words, and Experiment 3examined the children's strategies incomprehending meanings of orthographicallysimilar rhyming vs. non-rhyming word pairs in asentence completion task. The results demonstrated that specific features ofsemi-syllabic alphabets such as Telugu interactwith phonological knowledge during theprocessing of meaningful words such thatchildren with more formal instruction inreading are able to access phonologicalinformation better than younger children withless well developed orthographic knowledge.Some pedagogic implications of the results arediscussed. 相似文献
18.
Syntax has been noted to play an important role in word learning in English; it distinguishes the fundamental conceptual difference between individuals (coded as proper nouns), nonindividuals (coded as mass nouns), and classes of individuals (coded as count nouns). The Japanese language does not have grammatical markers flagging the distinctions between count nouns and mass nouns, between proper nouns and common nouns, or between singulars and plurals. How Japanese 2- and 4-year-olds assign meaning to novel nouns associated with familiar and unfamiliar animals and inanimate objects was studied in the research reported here. When a novel label was given to an unfamiliar object, children assumed it to be a name for a basic-level object category whether the referent was an animal or an inanimate object. If the named object already had an established name, and if the object was an inanimate object, the children mapped the noun to a subordinate category. When the named object was an animal, however, they tended to interpret the label as a proper name. These results demonstrated that in the absence of useful information from syntax, 2-year-old Japanese children are able to fast map a noun to its meaning by elegantly coordinating word-learning biases and other available sources of information. 相似文献
19.
The role of topic‐related background knowledge in visual attention to illustration and children's word learning during shared book reading 
下载免费PDF全文
下载免费PDF全文 Tanya Kaefer 《Journal of Research in Reading》2018,41(3):582-596
The purpose of this study was to examine how background knowledge of a topic may influence children's attention to different elements of storybook illustrations and how that influences word learning. Forty‐one kindergarten students were administered a test about a familiar topic (i.e., birds). Participants were then read either a fictional story about a familiar topic (birds) or a fictional story about a novel topic (wugs) on an eye‐tracker monitor. Results suggest that, for children who heard the familiar story, those who knew more about the category were faster to orient to the illustration of the novel word than children with lower background knowledge. Accordingly, children who were faster to orient to the illustration were more likely to learn the word. These results may suggest that one mechanism by which background knowledge improves implicit learning in shared‐book reading contexts is by guiding attention to the named elements of the illustrations. 相似文献
20.
借用名量词的语义分析 总被引：2，自引：0，他引：2
李先银 《信阳师范学院学报(哲学社会科学版)》2002,22(2):56-58,74
本文探讨了借用名量词的条件及语义特点，文章认为：若N1是N2的容器，可以借用N1做N2的量词，构成Num N1 N2.Num N1 N2的语义与容器和名词的类有关。 相似文献