共查询到20条相似文献，搜索用时 46 毫秒
1.
Naomi Havron Alex de Carvalho Anne-Caroline Fiévet Anne Christophe 《Child development》2019,90(1):82-90
Adults create and update predictions about what speakers will say next. This study asks whether prediction can drive language acquisition, by testing whether 3- to 4-year-old children (n = 45) adapt to recent information when learning novel words. The study used a syntactic context which can precede both nouns and verbs to manipulate children's predictions about what syntactic category will follow. Children for whom the syntactic context predicted verbs were more likely to infer that a novel word appearing in this context referred to an action, than children for whom it predicted nouns. This suggests that children make rapid changes to their predictions, and use this information to learn novel information, supporting the role of prediction in language acquisition. 相似文献
2.
Margaret Cychosz Tristan Mahr Benjamin Munson Rochelle Newman Jan R. Edwards 《Child development》2023,94(4):e197-e214
To learn language, children must map variable input to categories such as phones and words. How do children process variation and distinguish between variable pronunciations (“shoup” for soup) versus new words? The unique sensory experience of children with cochlear implants, who learn speech through their device's degraded signal, lends new insight into this question. In a mispronunciation sensitivity eyetracking task, children with implants (N = 33), and typical hearing (N = 24; 36–66 months; 36F, 19M; all non-Hispanic white), with larger vocabularies processed known words faster. But children with implants were less sensitive to mispronunciations than typical hearing controls. Thus, children of all hearing experiences use lexical knowledge to process familiar words but require detailed speech representations to process variable speech in real time. 相似文献
3.
Lexical competition that occurs as speech unfolds is a hallmark of adult oral language comprehension crucial to rapid incremental speech processing. This study used pause detection to examine whether lexical competition operates similarly at 7–8 years and tested variables that influence “online” lexical activity in adults. Children (n = 20) and adults (n = 17) were slower to detect pauses in familiar words with later uniqueness points. Faster latencies were obtained for words with late uniqueness points in constraining compared with neutral sentences; no such effect was observed for early unique words. Following exposure to novel competitors (“biscal”), children (n = 18) and adults (n = 18) showed competition for existing words with early uniqueness points (“biscuit”) after 24 hr. Thus, online lexical competition effects are remarkably similar across development. 相似文献
4.
Children’s skill at recoding graphemes to phonemes is widely understood as the driver of their progress in acquiring reading
vocabulary. This recoding skill is usually assessed by children’s reading of pseudowords (e.g., yeep) that represent “new words.” This study re-examined the extent to which pseudoword reading is, itself, influenced by orthographic
rimes (e.g., eep) of words of the child’s reading vocabulary, during the development of reading skill. In Study 1, children with word reading
levels of 6–10 years read matched pseudowords that do and do not share an orthographic rime with words of their reading vocabularies.
Study 2 was conducted to further examine such a comparison for children of the 6- to 8-year word reading levels. There was
a small and constant advantage of shared lexical orthographic rimes for children with reading levels 6–8 years but from 8
to 10 years that advantage increased significantly, as expected by Ehri’s phase account of word reading development. The pseudoword
reading of children learning to read English involves use of lexical orthographic components as well as context-free recoding
of graphemes to phonemes. This implies a qualification to the common interpretation of pseudoword reading as a measure of
context-free grapheme–phoneme recoding. Such a measure should use selected pseudowords that do not share orthographic rime
units or other multigrapheme components with words of the children’s reading vocabularies. 相似文献
5.
The spatial locative words used in multiword locative action expressions were tracked longitudinally for 4 children. Children ranged in age from 1–5 to 3–0. Although certain words emerged before others, as previous research has shown, the children were selective about which lexical categories were used to talk about movement events, and their selections changed systematically with age. Source and path words were used most frequently at the earliest ages, and goal words predominated at the oldest ages. The children also increased the specificity with which they talked about locative movement events by combining goal words with source and path words as they got older. The observed developmental shifts in lexical use suggest that lexical acquisition is influenced not only by the meaning of the individual locative words but also by the verb relational roles that such words play when embedded in semantic/syntactic contexts. 相似文献
6.
This paper investigates whether or not lexical stress is used for lexical access in Spanish. A lexical decision task and a
masking priming procedure were used to compare correctly-versus-incorrectly stressed words (e.g., técla-TECLA vs. teclá-TECLA). SOA (Stimulus Onset Asynchrony) was manipulated at 33, 66, 100, and 143 ms. The results showed that congruent condition
was easier, but in 143 ms SOA only. Furthermore, while congruent condition did not differ from a control identity condition
(e.g., tecla-TECLA) incongruent condition was slower, but in 100 and 143 ms SOA only. All these results suggest that stress affects lexical
access at a late stage of lexical access processing. Reading models should be re-designed in order to include lexical stress
as another phonological code which is used for reading. 相似文献
7.
Miller P 《American annals of the deaf》2005,150(3):305-323
Three groups of students--19 hard of hearing, 20 deaf, and a control group of 36 typically developing hearing readers--were compared on their ability to process written words at the lexical level and on their comprehension of words within the structure of a sentence. Findings generally suggested that severe prelingual hearing loss does not prevent the development of word processing strategies adequate for efficient processing of written words at the lexical level, although such hearing loss seems to put individuals at risk of failure in internalizing syntactic knowledge crucial for proper processing of words at the sentence level. Evidence further indicated that neither the amount of functional hearing (deaf vs. hard of hearing), the hearing status of their parents (hearing impaired vs. hearing), nor the use of sign language as a primary communication mode was a direct cause in this regard. 相似文献
8.
Probabilistic Cues to Grammatical Category in English Orthography and Their Influence During Reading
We investigated probabilistic cues to grammatical category (noun vs. verb) in English orthography. These cues are located in both the beginnings and endings of words—as identified in our large-scale corpus analysis. Experiment 1 tested participants' sensitivity to beginning and ending cues while making speeded grammatical classifications. Experiment 2 tested sensitivity to these cues during lexical decisions. For both tasks, words with consistent ending cues (with respect to grammatical category) were processed more quickly and with lower error rates than words with inconsistent ending cues. However, for beginnings, consistent cues resulted in lower errors but no differences in response times. The data reported here point to the multifaceted nature of grammatical category representation and indicate that probabilistic orthographic cues relating to grammatical category have a clear influence on lexical processing particularly when these cues are located at the end of the word. 相似文献
9.
A precisely controlled automated procedure confirms a developmental decalage: Infants acquiring English link count nouns to object categories well before they link adjectives to properties. Fourteen- and 18-month-olds ( n = 48 at each age) extended novel words presented as count nouns based on category membership rather than shared properties. When the same words were presented as adjectives, infants revealed no preference for either category- or property-based extensions. The convergence between performance in this automated procedure and in more interactive tasks is striking. Perhaps more importantly, the automated task provides a methodological foundation for (a) exploring the development of form–meaning links in infants acquiring languages other than English and (b) investigating the time course underlying infants' mapping of novel words to meaning. 相似文献
10.
This paper aims to advance our understanding of how children’s use of vocabulary in writing changes as they progress through their school careers. It examines the extent to which a model of lexical sophistication as use of low-frequency, register-appropriate words adequately captures development in vocabulary use across the course of compulsory education in England. We find that the received model needs elaborating in a number of important ways. Specifically: (1) the average frequency of words in the repertoire used by older children is no lower than that of younger children. However, younger children’s writing is characterized by extensive repetition of high frequency verbs and adjectives and of low frequency nouns (the latter being a product of a focus on entities which are rarely discussed in adult writing). The role of repetition in this finding implies that lexical sophistication is inseparable from lexical diversity, a construct which is usually treated as distinct. (2) Younger children’s writing shows a preference for fiction-like vocabulary over academic-like vocabulary. As they mature, children come to make greater use of academic vocabulary in both their literary and non-literary writing, though this increase is greatest in their non-literary writing. Use of fiction vocabulary remains constant across year groups but decreases sharply in non-literary writing, showing an enhanced sense of register appropriateness. This development of register appropriate word use can be captured by relatively simple frequency-based measures that could readily be employed by teachers and researchers to track writers’ development in this aspect of word use.
相似文献11.
Recent research suggests that, although young children appreciate many different kinds of conceptual relations among objects, they focus specifically on taxonomic relations in the context of word learning. However, because the evidence for children's appreciation of this linkage between words and object categories has come primarily from children who have made substantial linguistic and conceptual advances, it offers limited information concerning the development of this linkage. In the experiments reported here, we employ a match-to-sample task to focus specifically on the development of an appreciation of the linkage between words (here, count nouns) and object categories in infants in the period just prior to and just subsequent to the naming explosion. The results demonstrate that, for 21-month-old infants, most of whom have recently entered the vocabulary explosion (Experiment 1), and for 16-month-old infants, most of whom have yet to commence the vocabulary explosion (Experiment 2), novel nouns focus attention on taxonomic relations among objects. This is important because it reveals a nascent appreciation of a linkage between words and object categories in infants who are at the very onset of language production. Results are interpreted within a developmental account of infants' emerging appreciation of a specific linkage between count nouns and object categories. 相似文献
12.
Meagan R. Talbott Gregory S. Young Jeff Munson Annette Estes Laurie A. Vismara Sally J. Rogers 《Child development》2020,91(3):743-753
In typical development, gestures precede and predict language development. This study examines the developmental sequence of expressive communication and relations between specific gestural and language milestones in toddlers with autism spectrum disorder (ASD), who demonstrate marked difficulty with gesture production and language. Communication skills across five stages (gestures, word approximations, first words, gesture-word combinations, and two-word combinations) were assessed monthly by blind raters for toddlers with ASD participating in an randomized control trial of parent-mediated treatment (N = 42, 12–30 months). Findings revealed that toddlers acquired skills following a reliable (vs. idiosyncratic) sequence and the majority of toddlers combined gestures with words before combining words in speech, but in contrast to the pattern observed in typical development, a significant subset acquired pointing after first words. 相似文献
13.
离合词是汉语词汇体系中一个非常特殊的类别,其构成语素表现出可分可离的特性,具有词法和句法的双重属性特征。从功能语言学所主张的典型名词“引进话语参与者”的话语功能及前景信息和背景信息的角度能够对离合词的分合现象进行较好的解释,相较于形式语言学所“特设”的规则,这种功能角度的解释也更为贴近语言事实。 相似文献
14.
Nina J. Anderson Susan A. Graham Heather Prime Jennifer M. Jenkins Sheri Madigan 《Child development》2021,92(2):484-501
This meta-analysis examined associations between the quantity and quality of parental linguistic input and children’s language. Pooled effect size for quality (i.e., vocabulary diversity and syntactic complexity; k = 35; N = 1,958; r = .33) was more robust than for quantity (i.e., number of words/tokens/utterances; k = 33; N = 1,411; r = .20) of linguistic input. For quality and quantity of parental linguistic input, effect sizes were stronger when input was observed in naturalistic contexts compared to free play tasks. For quality of parental linguistic input, effect sizes also increased as child age and observation length increased. Effect sizes were not moderated by socioeconomic status or child gender. Findings highlight parental linguistic input as a key environmental factor in children’s language skills. 相似文献
15.
Four studies (N = 192) tested whether young children use nonverbal information to make inferences about differences in social power. Five‐ and six‐year‐old children were able to determine which of two adults was “in charge” in dynamic videotaped conversations (Study 1) and in static photographs (Study 4) using only nonverbal cues. Younger children (3–4 years) were not successful in Study 1 or Study 4. Removing irrelevant linguistic information from conversations did not improve the performance of 3‐ to 4‐year‐old children (Study 3), but including relevant linguistic cues did (Study 2). Thus, at least by 5 years of age, children show sensitivity to some of the same nonverbal cues adults use to determine other people's social roles. 相似文献
16.
Visual information influences speech perception in both infants and adults. It is still unknown whether lexical representations are multisensory. To address this question, we exposed 18‐month‐old infants (n = 32) and adults (n = 32) to new word–object pairings: Participants either heard the acoustic form of the words or saw the talking face in silence. They were then tested on recognition in the same or the other modality. Both 18‐month‐old infants and adults learned the lexical mappings when the words were presented auditorily and recognized the mapping at test when the word was presented in either modality, but only adults learned new words in a visual‐only presentation. These results suggest developmental changes in the sensory format of lexical representations. 相似文献
17.
The objective of the present study was to examine the contribution of lexical and nonlexical processes to skilled reading
and spelling in Persian. Persian is a mixed orthography that allows one to study within one language characteristics typically
found in shallow orthographies as well as those found in deeper orthographies. 61 senior high-school students (mean age = 17;
8, SD = 4 months) attending schools in Iran were tested on reading and spelling of words and nonwords. The word stimuli differed
in terms of reading transparency (transparent when all phonemes have corresponding letters vs. opaque when short vowels were
not marked with a letter) and spelling polygraphy (nonpolygraphic phonemes vs. polygraphic phonemes). The nonwords were transparent
and nonpolygraphic. The reading results showed that both transparent and opaque words were read faster than nonwords, and
that transparent words were read faster than opaque words. Moreover, both transparent and opaque words were affected by word
frequency. These findings suggest that skilled readers of Persian relied on lexical processes to read words. In contrast,
the spelling results failed to show a word-advantage effect suggesting that skilled spellers of Persian rely on nonlexical
processes to spell words. Moreover, orthographic complexity also affected spelling. Specifically, nonpolygraphic words were
spelled faster than polygraphic words for both transparent and opaque words. Taken together, the findings showed that skilled
reading and spelling in Persian rely on different underlying processes. 相似文献
18.
From Flexibility to Constraint: The Contrastive Use of Lexical Tone in Early Word Learning 
下载免费PDF全文
下载免费PDF全文 Jessica F. Hay Katharine Graf Estes Tianlin Wang Jenny R. Saffran 《Child development》2015,86(1):10-22
Infants must develop both flexibility and constraint in their interpretation of acceptable word forms. The current experiments examined the development of infants' lexical interpretation of non‐native variations in pitch contour. Fourteen‐, 17‐, and 19‐month‐olds (Experiments 1 and 2, N = 72) heard labels for two novel objects; labels contained the same syllable produced with distinct pitch contours (Mandarin lexical tones). The youngest infants learned the label–object mappings, but the older groups did not, despite being able to discriminate pitch differences in an object‐free task (Experiment 3, N = 14). Results indicate that 14‐month‐olds remain flexible regarding what sounds make meaningful distinctions between words. By 17–19 months, experience with a nontonal native language constrains infants' interpretation of lexical tone. 相似文献
19.
Cross-linguistic studies suggest that the orthographic system determines the reading performance of dyslexic children. In opaque orthographies, the fundamental feature of developmental dyslexia is difficulty in reading accuracy, whereas slower reading speed is more common in transparent orthographies. The aim of the current study was to examine the extent to which different variables of words affect reaction times and articulation times in developmental dyslexics. A group of 19 developmental dyslexics of different ages and an age-matched group of 19 children without reading disabilities completed a word naming task. The children were asked to read 100 nouns that differed in length, frequency, age of acquisition, imageability, and orthographic neighborhood. The stimuli were presented on a laptop computer, and the responses were recorded using DMDX software. We conducted analyses of mixed-effects models to determine which variables influenced reading times in dyslexic children. We found that word naming skills in dyslexic children are affected predominantly by length, while in non-dyslexics children the principal variable is the age of acquisition, a lexical variable. These findings suggest that Spanish-speaking developmental dyslexics use a sublexical procedure for reading words, which is reflected in slower speed when reading long words. In contrast, normal children use a lexical strategy, which is frequently observed in readers of opaque languages. 相似文献
20.
Two-year-olds use the sentence structures verbs appear in--subcategorization frames--to guide verb learning. This is syntactic bootstrapping. This study probed the developmental origins of this ability. The structure-mapping account proposes that children begin with a bias toward one-to-one mapping between nouns in sentences and participant roles in events. This account predicts that subcategorization frames should guide very early verb learning, if the number of nouns in the sentences is informative. In 3 experiments, one hundred and thirty-six 21- and 19-month-olds assigned appropriately different interpretations to novel verbs in transitive ("He's gorping him!") versus intransitive sentences ("He's gorping!") differing in their number of nouns. Thus, subcategorization frames guide verb interpretation in very young children. These findings constrain theoretical proposals about mechanisms for syntactic bootstrapping. 相似文献