首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献，搜索用时 15 毫秒
1.
Language facility and theory of mind development in deaf children   总被引：3，自引：0，他引：3  
Deaf children with signing parents, nonnative signing deaf children, children from a hearing impaired unit (HIU), and oral deaf children were tested on three first-order theory of mind (ToM) tasks--a subset was also given a second-order task (Perner & Wimmer, 1985). A British Sign Language (BSL) receptive language task (Herman, Holmes, & Woll, 1999) and four nonverbal executive function tasks were also administered. The new BSL task allowed, for the first time, the receptive language abilities of deaf children to be measured alongside ToM abilities. Hearing children acted as controls. These children were given the same tasks, except the British Picture Vocabulary Scale was substituted for the BSL task. Language ability correlated positively and significantly with ToM ability, and age was correlated with language ability for both the deaf and hearing children. Age, however, underpinned the relationship between ToM and language for deaf children with signing parents and hearing children but not for nonnative signing, HIU, or oral deaf children. Executive function performance in deaf children was not related to ToM ability. A subset of hearing children, matched on age and language standard scores with signing deaf children, passed significantly more ToM tasks than the deaf children did. The findings are discussed with respect to the hypotheses proposed by Peterson and Siegal (1995, 2000) and Courtin (2000).  相似文献   

2.
Bebko (1984) reported that deaf children tend not to use spontaneously active memory strategies such as rehearsal in tasks requiring recall of ordered, temporal information. The present study investigated whether this tendency is task specific or generalized to other experimental paradigms. A central-incidental paradigm was used with profoundly deaf children and hearing children 6 to 13 years of age. The results for the hearing students replicated previous studies: central recall increased with age, but incidental recall changed little. For the deaf children, the results initially appeared very similar to those of the hearing children. However, on closer examination, the rehearsal strategies of the deaf students seemed less effective in mediating their recall. They apparently compensated for these difficulties by capitalizing on unique spatial features of the task, leading to recall levels comparable to those of the hearing students. Therefore, similar performance may not have been the result of equal strategy use but, rather, of the use of additional strategies by the deaf students. This study reinforced the need to provide additional training for deaf students in the use of memory strategies such as rehearsal when information is to be remembered in a sequential manner.  相似文献   

3.
This study focuses on the ability of deaf children to predict the behaviours of other people, based on an understanding of their beliefs. An unexpected transfer task and a deceptive box task were used with a group of 55 severely/profoundly deaf children. Results reiterate the findings of other studies that many deaf children are grossly delayed in this important area of social functioning compared to their hearing counterparts. Deaf children of deaf parents/carers fared better than deaf children with hearing parents/carers. Implications for early intervention and education programmes are discussed.  相似文献   

4.
Eleven 18-month-old children with profound prelingual hearing loss were video-recorded in a free-play session with their mothers. Five of the mothers were profoundly deaf and fluent users of British Sign Language (BSL) or Auslan. The other six were hearing and had enrolled in a signing program. Ten-minute segments from each session were analyzed to determine the number of switches in attention shown by each child. Switches in attention were subdivided into three categories: spontaneous (where the child spontaneously looked to the mother); responsive (where the child responded to some maternal action such as moving an object); and elicited (where the mother made a direct attempt to gain the child's attention. Failed attempts to gain attention were also noted. A comparison of deaf and hearing mothers revealed no difference in the proportion of spontaneous or responsive switches in attention shown by their children. Responsive switches were by far the most frequent category for both groups, but these most commonly focused on objects and did not provide an opportunity for maternal signing. Successful perception of signing typically followed from spontaneous or elicited attentional switches. Deaf mothers were generally more insistent on their children turning to look at them, and they were more successful in eliciting attentional switches although they also had more failed attempts. These overall differences between the two groups were overshadowed by large individual differences within the groups. Within the sample there were both deaf and hearing mothers who achieved successful signed communication with their children.  相似文献   

5.
Two groups of deaf children, aged 8 and 14 years, were presented with a number of tasks designed to assess their reliance on phonological coding. Their performance was compared with that of hearing children of the same chronological age (CA) and reading age (RA). Performance on the first task, short-term recall of pictures, showed that the deaf children's spans were comparable to those of RA controls but lower than CA controls. For the older deaf children, short-term memory span predicted reading ability. There was no clear evidence that the deaf children were using phonological coding in short-term memory when recall of dissimilar items was compared with recall of items with similarly sounding names. In the second task, which assessed orthographic awareness, performance of the deaf children was similar to that of RA controls although scores predicted reading level for the deaf children but not the hearing. The final task was a picture spelling test in which there were marked differences between the deaf and hearing children, most notably in the number of spelling refusals (which was higher for the deaf children in the older group than their RA controls) and the percentage of phonetic errors (which was considerably lower for both groups of deaf children than for any of the hearing controls). Overall these results provide support for the view that deaf children place little reliance on phonological coding.  相似文献   

6.
The performance of young deaf children in spatial and temporal number tasks   总被引：2，自引：0，他引：2  
Deaf children tend to fall behind in mathematics at school. This problem may be a direct result of particular experiences in the classroom; for example, deaf children may find it hard to follow teachers' presentations of basic, but nevertheless quite abstract, mathematical ideas. Another possibility is that the problem starts before school: They may either be worse than hearing children at early, nonlinguistic number representations, they may be behind in learning the culturally transmitted number string, or both. This may result in deaf children failing to develop informal problem-solving strategies, which prepare most children for the more formal learning of number and arithmetic that they will have to do at school. We compared 3- and 4-year-old deaf and hearing children's ability to remember and to reproduce the number of items in a set of objects. In one condition, we presented all the items together in a spatial array; in another, we presented them one at a time in a temporal sequence. Deaf children performed as well as the hearing children in the temporal tasks, but outperformed their hearing counterparts in the spatial task. These results suggest that preschool deaf children's number representation is at least as advanced as that of hearing children, and that they are actually better than hearing children at representing the number of objects in spatial arrays. We conclude that deaf children's difficulties with mathematical learning are not a consequence of a delay in number representation. We also conclude that deaf children should benefit from mathematical instruction that emphasizes spatial representation.  相似文献   

7.
We compared 20 prelingually profoundly deaf adolescents (age: 11-16 years) and 20 matched, hearing adolescents on a picture-sequencing task and on a social judgment test. In addition, we also tested 14 younger deaf children (age: 6-10 years) and compared their data with those from 20 hearing peers as well as those from the older deaf participants on the picture-sequencing task. The results from this study did not provide evidence for the hypothesis that deaf adolescents possess significantly poorer knowledge about social reasoning than age-matched hearing peers, but it did present further additional support for Peterson and Siegal's (1995) conversational hypothesis: a proposal that a deprivation in conversations about mental states leads to an impairment in the development of an awareness of mental states in the younger deaf children.  相似文献   

8.
A group of non-native, early signing deaf children between the ages of 7 and 11 years were tested on a referential communication task. A group of hearing children matched for sex and mental and chronological age were also included in the study. The aim was to study the deaf children's ability to take another persons perspective in a task that resembled a real-life communicative situation to a higher extent than the standard theory of mind (ToM) tasks. A further aim was to investigate the possible importance of a number of background variables such as mental and chronological age, working memory, and false-belief attribution. Results show that the hearing children outperformed the deaf children on the referential communication task and that results were highly correlated with both chronological and mental age, as well as with working memory. There was a positive, but not significant, correlation between false belief and success on the referential communication task. This is an indication that the two tasks tap different abilities and that false belief might be necessary, but not sufficient in order to be skilled in the art of referential communication. The possible role of working memory in the referential communication task is also discussed. The results support the hypothesis of the importance of early talk about mental states for the later development of ToM abilities.  相似文献   

9.
A comparison was made between prelingually deaf and hearing children matched on reading age (between 7:0 and 7:11 years) in order to examine possible differences in reading performance. The deaf children all had a severe or profound hearing loss and were receiving special education in either a school or a unit for the deaf. The experimental tasks used a lexical decision task involving the reading of single words. The employment of phonology in reading was investigated by comparing reading performance on regular and irregular words and by comparing reading of homophonic versus non–homophonic nonwords. Both tasks revealed that hearing participants were much more affected by regularity and homophony, suggesting a much greater reliance on assembled phonological recoding. These results are discussed in terms of deaf readers relying on lexical access for reading print.  相似文献   

10.
Deaf children who are native users of American Sign Language (ASL) and hearing children who are native English speakers performed three working memory tasks. Results indicate that language modality shapes the architecture of working memory. Digit span with forward and backward report, performed by each group in their native language, suggests that the language rehearsal mechanisms for spoken language and for sign language differ in their processing constraints. Unlike hearing children, deaf children who are native signers of ASL were as good at backward recall of digits as at forward recall, suggesting that serial order information for ASL is stored in a form that does not have a preferred directionality. Data from a group of deaf children who were not native signers of ASL rule out explanations in terms of a floor effect or a nonlinguistic visual strategy. Further, deaf children who were native signers outperformed hearing children on a nonlinguistic spatial memory task, suggesting that language expertise in a particular modality exerts an influence on nonlinguistic working memory within that modality. Thus, language modality has consequences for the structure of working memory, both within and outside the linguistic domain.  相似文献   

11.
OBJECTIVE: To assess the disciplinary preferences of mothers of profoundly deaf children and normally hearing children in a test of the hypothesized link between child disabilities and punitive parenting. METHOD: Disciplinary preferences of mothers seeking a cochlear implant for their profoundly deaf child (n=57), mothers not seeking an implant for their deaf child (n=22), and mothers of normally hearing children (n=27) were assessed using an analog task in which subjects select discipline in response to slide images of children engaging in normative or frankly deviant behaviors that are potentially irritating. RESULTS: Results indicated that mothers of children with profound hearing impairments were more likely to select physical discipline in response to depicted child transgressions and more likely to escalate to physical discipline when the depicted child was described as persisting in the transgression. Additionally, escalation was more probable in response to scenes depicting children engaged in dangerous and destructive acts than in rule-violating acts. CONCLUSIONS: Findings were consistent with the hypothesized link between childhood disabilities and child maltreatment as well as the hypothesis that children with disabilities associated with communication problems could be at risk of physical abuse.  相似文献   

12.
2 studies investigate whether 18-month-old children spontaneously sort objects into basic-level categories, and how this ability is related to naming. In Study 1, 18-month-old children were given spontaneous sorting tasks, involving both identical objects and objects with basic-level intracategory variation. Children were scored as having passed the tasks if they produced "exhaustive grouping," that is, physically grouped all the objects of one kind into one location and the objects of the other kind into a different location. The children also received means-ends and object-permanence tasks. Children's parents received a checklist of early names. Children who produced exhaustive grouping used significantly more names than those who did not, in both identical and basic-level cases. There was no such relation between object-permanence and naming or between means-ends performance and naming. In Study 2, children received arrays of the same objects, with either identical objects or objects with basic-level variation in each group. No significant differences were found between the identical and basic-level tasks. However, as in the previous task, performance on both types of categorization was related to naming. Children who produced exhaustive grouping were reported to produce more names than those who did not. There appears to be a close relation between object categorization and naming in young children. The theoretical implications of this empirical association are discussed.  相似文献   

13.
Deficits in vocabulary have a negative impact on literacy and interpersonal interaction for deaf children. As part of an evaluation, an outcomes assessment was conducted to determine the effectiveness of a computer-based vocabulary tutor in an elementary auditory/oral program. Participants were 19 children, 16 profoundly deaf and 3 hearing. The vocabulary tutor displays line drawings or photographs of the words to be learned while a computer-generated avatar of a "talking head" provides synthesized audiovisual speech driven from text. The computer system also generates printed words corresponding to the imaged items. Through audiovisual reception, children memorized up to 218 new words for everyday household items. After 4 weeks, their receptive vocabulary was tested, using the avatar to speak the name of each item. Most of the students retained more than half of the new words. The freely available vocabulary tutor, whose characteristics can be tailored to individual need, can provide a language-intensive, independent learning environment to supplement classroom teaching in content areas.  相似文献   

14.
This paper pays attention to two factors often neglected in the studies of instructional or guidance interaction: the specifity of the child as interlocutor and the constraints exerted by the properties of the tasks on the semiotic means used to guide the child. Following Sigel’s ‘distanciation hypothesis’ we have studied the ‘distancing’ characteristics of the adult’s discourse adressed to the child in two groups of dyads, one with deaf (N=5), the other with hearing children (N=7) aged around 24 months, in two tasks: Symbolic Play and Picture — Book reading. The main results indicate a strong effect of the tasks, SP allowing more distanciation than PB for both categories. D-dyads show few differences in SP task but less ability to share references in Picture-Book reading. It appears also that with such young children, the distancing potential might be conveyed by the forms and pragmatic functions and not only by the semantic components of adult’s utterances.  相似文献   

15.
A test of individual differences in cognitive flexibility was made by challenging 16 prelingually profoundly deaf children (CA = 11.33 yr.) and 16 hearing children (CA = 11.75 yr) with a short‐term memory task that required immediate recall of the temporal or spatial sequence in which four letters were presented. For each trial, letter presentation was arranged so that the temporal sequence was not correlated with the spatial sequence. On initial free‐response trials, all hearing children and seven deaf children showed a temporal orientation. The remaining nine deaf children showed a spatial orientation. On later trials, each child was instructed to take the orientation not originally taken. It was predicted from O'Connor & Hermelin (Quarterly Journal of Experimental Psychology (1973) 25, 335‐343) that all groups would show substantial flexibility going from the initial to the challenge test, but only the hearing group actually showed the predicted recovery. Moreover, recall response times indicated processing differences between the two deaf groups, even when stimulus presentation parameters were individually adjusted to tap each child's optimum performance. It was concluded that individual differences in deaf children's initial orientations bear significantly upon differences in performance because of these children's relatively weak adaptive responses under challenging conditions.  相似文献   

16.
Seven- and eight-year-old deaf children and hearing children of equivalent reading age were presented with a number of tasks designed to assess reading, spelling, productive vocabulary, speechreading, phonological awareness, short-term memory, and nonverbal intelligence. The two groups were compared for similarities and differences in the levels of performance and in the predictors of literacy. Multiple regressions showed that both productive vocabulary and speechreading were significant predictors of reading for the deaf children after hearing loss and nonverbal intelligence had been accounted for. However, spelling ability was not associated with any of the other measures apart from reading. For hearing children, age was the main determinant of reading and spelling ability (due to selection criterion). Possible explanations for the role of speechreading and productive vocabulary in deaf children's reading and the differences between the correlates of literacy for deaf and hearing children are discussed.  相似文献   

17.
The levels of involvement of six young deaf children were observed during three educational tasks. These levels were used as indicators of quality of education. The children were bilingually educated. The possible connection between language of instruction, type of task, teaching style, and level of involvement was studied. The children's observed overall level of involvement was high. Involvement was influenced by the type of educational task, but also by the teacher and by the language of instruction: Involvement was greater during activities led by the deaf teacher, using Sign Language of the Netherlands (SLN). Measurement of involvement of young deaf children turned out to be a good way to assess quality of education, not only for research purposes but in the context of general educational practice.  相似文献   

18.
The signed and spoken language produced by 14 mothers to their 18-month-old children during free play was analyzed. All the children had profound prelingual deafness. Seven of the mothers were profoundly deaf and fluent users of British Sign Language (BSL) or Auslan. The other seven were hearing and had enrolled in a signing program. Maternal signed utterances were classified according to whether they were made in the child's line of sight and whether they had a salient context; that is, they referred to an object or event at the child's current focus of attention. Spoken utterances were coded by word length. Comparisons between the two groups showed that both deaf and hearing mothers produced a majority of single-sign utterances (rather than utterances containing two or more signs). Deaf mothers also produced a majority of single-word spoken utterances, whereas the hearing mothers produced a significantly greater proportion of multiword utterances. As predicted, deaf mothers were more successful than hearing mothers in presenting signed utterances with a salient context that were visible to their children. Across the group as a whole, the total number of visible and salient signed utterances produced in 10 minutes was positively correlated with the total number of occasions on which mothers successfully redirected their child's attention or the child spontaneously turned to look at the mother. This suggests that deaf children who are visually attentive to their mothers receive a greater number of visible signed utterances with a salient context. I argue that this provides a more secure context for early language development.  相似文献   

19.
Our aim in this study was to investigate whether previous findings pointing to a delay in deaf children's theory of mind development are replicated when linguistic demands placed on the deaf child are minimized in a nonverbal version of standard false-belief tasks. Twenty-four prelingually deaf, orally trained children born of hearing parents were tested with both a verbal and a nonverbal version of a false-belief task. Neither the younger (range: 4 years 7 months-6 years 5 months) nor the older (range: 6 years 9 months-11 years 11 months) children of the final sample of 21 children performed above chance in the verbal task. The nonverbal task significantly facilitated performance in children of all ages. Despite this facilitation, we observed a developmental delay: only the older group performed significantly above chance in the nonverbal false-belief task, even though the younger children were at the average age when hearing children normally pass standard false-belief tests. We discuss these findings in light of the hypothesis that language development and conversational competence are crucial to the acquisition of a theory of mind.  相似文献   

20.
Deaf and hard-of-hearing (DHH) children's ability to rapidly learn novel words through direct reference and through novel mapping (i.e., inferring that a novel word refers to a novel object) was examined. Ninety-eight DHH children, ranging from 27 to 82 months old, drawn from 12 schools in five states participated. In two tasks that differed in how reference was established, word-learning abilities were measured by children's ability to learn novel words after only three exposures. Three levels of word-learning abilities were identified. Twelve children did not rapidly learn novel words. Thirty-six children learned novel words rapidly but only in the direct reference task. Forty-nine children learned novel words rapidly in both direct reference and novel mapping tasks. These levels of word-learning abilities were evident in children who were in oral-only and in signing environments, in children with cochlear implants, and in deaf children of deaf parents. Children's word-learning abilities were more strongly correlated to lexicon size than age, and this relation was similar for children in these different language-learning environments. Acquisition of these word-learning abilities seems based on linguistic mechanisms that are available to children in a wide range of linguistic environments. In addition, the word-learning tasks offer a promising dynamic assessment tool.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号