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1.
Seven and nine year olds were asked to draw two three‐dimensional objects (a cube and a wedge). When there was disjunction between their knowledge of the object's structure and its appearance (cube), they depicted the invariant rather than the variant features and produced rectangular solutions. When differences between the structure and the appearance of the object were minimised (wedge) most children drew a converging form. They could also accurately copy a two‐dimensional converging form. However, the children's knowledge of what the line drawing was supposed to represent did have an effect: in particular, they drew fewer converging obliques when the same line drawing was called a ‘building block’ (a rectangular object) than when it was called a ‘shape’ or a ‘house’ (an object known to contain obliques). A similar pattern of results was observed in a second experiment in which a selection task was used.  相似文献   

2.
5 experiments investigated children's understanding that expectations based on prior experience may influence a person's interpretation of ambiguous visual information. In Experiment 1, 4- and 5-year-olds were asked to infer a puppet's interpretation of a small, ambiguous portion of a line drawing after the puppet had been led to have an erroneous expectation about the drawing's identity. Children of both ages failed to ascribe to the puppet an interpretation consistent with the puppet's expectation. Instead, children attributed complete knowledge of the drawing to the puppet. In Experiment 2, the task was modified to reduce memory demands, but 4- and 5-year-olds continued to overlook the puppet's prior expectations when asked to infer the puppet's interpretation of an ambiguous scene. 6-year-olds responded correctly. In Experiment 3, 4- and 5-year-olds correctly reported that an observer who saw a restricted view would not know what was in the drawing, but children did not realize that the observer's interpretation might be mistaken. Experiments 4 and 5 explored the possibility that children's errors reflect difficulty inhibiting their own knowledge when responding. The results are taken as evidence that understanding of interpretation begins at approximately age 6 years.  相似文献   

3.
The behavior of 34 first-grade children was observed when copying a text — their procedures for dividing the text verbal behavior and written production — in order to obtain task with which to follow the child’s progress through the first two years of schooling. Four successive levels appear after analysis of these data. On the first level, the construction of written units, the child faces particular problems with the title, lines, blanks and letters. The text is merely a commonplace object for the child. The second, or literal, level involves systematic letter-by-letter copying; letter naming appears. The text becomes a sequence of letters. On the third level, the child strives to copy visually and/or phonetically identifiable groups of letters: phonemes, syllables, or pronounceable non-syllabic strings of letters. Oral support is often implicit. The text is not seen by the child as a representation of speech. The word constitutes the unit of reference on the fourth level. The wide span group succeeds in copying the text word-by-word, while the narrow-span subgroup needs to repeat the trial twice, using the syllable as the support unit. Oral behavior is omnipresent. The text has become a sequence of words for the child.  相似文献   

4.
In Experiment 1, two groups of pigeons (n = 8) were given nondifferential (ND) training with a green keylight and a white vertical line on a dark surround nonsystematically alternated. Two groups (n = 8) received single stimulus (SS) training with the green light only. In Experiment 2, two groups of pigeons (n = 8) were given ND training with vertical and horizontal lines, while two other groups (n = 8) received SS training with only the vertical line. In both experiments, all groups were transferred to a green S+ (VI reinforced) and a red S? (extinguished) transfer problem. In each experiment, one ND and one SS group was tested in the same context as initial training (houselight off) and one ND and one SS group was tested in a changed context (houselight on). In both experiments and in both contexts, the ND groups performed less well on the transfer problem than did the SS groups. There was no evidence of greater control by the context in ND than in SS groups, which suggests that the observed difference in acquisition of the transfer task is not attributable to a purported difference in control by the context under the two conditions. The overall results favor the position that nondifferential training reduces attention to stimuli involved in the original training procedure and that this reduced attention transfers to stimuli subsequently experienced.  相似文献   

5.
Two experiments investigated attention of children with autism spectrum disorder (ASD) to faces and objects. In both experiments, children (7- to 15-year-olds) detected the difference between 2 visual scenes. Results in Experiment 1 revealed that typically developing children ( n  = 16) detected the change in faces faster than in objects, whereas children with ASD ( n  = 16) were equally fast in detecting changes in faces and objects. These results were replicated in Experiment 2 ( n  = 16 in children with ASD and 22 in typically developing children), which does not require face recognition skill. Results suggest that children with ASD lack an attentional bias toward others' faces, which could contribute to their atypical social orienting.  相似文献   

6.
In three experiments, we examined pigeons’ recognition of video images of human faces. In Experiment 1, pigeons were trained to discriminate between frontal views of human faces in a go/no-go discrimination procedure. They then showed substantial generalization to novel views, even though human faces change radically as viewpoint changes. In Experiment 2, the pigeons tested in Experiment 1 failed to transfer to the faces dynamically rotating in depth. In Experiment 3, the pigeons trained to discriminate the dynamic stimuli showed excellent transfer to the corresponding static views, but responses to the positive faces decreased at novel viewpoints outside the range spanned by the dynamic stimuli. These results suggest that pigeons are insensitive to the three-dimensional properties of video images. Consideration is given to the nature of the task, relating to the identification of three-dimensional objects and to perceptual classifications based on similarity judgments.  相似文献   

7.
Peterson CC 《Child development》2002,73(5):1442-1459
Theory-of-mind concepts in children with deafness, autism, and normal development (N = 154) were examined in three experiments using a set of standard inferential false-belief tasks and matched sets of tasks involving false drawings. Results of all three experiments replicated previously published findings by showing that primary school children with deafness or autism, aged 6 to 13 years, scored significantly lower than normal-developing 4-year-old preschoolers on standard misleading-container and unseen-change tests of false-belief understanding. Furthermore, deaf and autistic children generally scored higher on drawing-based tests than on corresponding standard tests and, on the most challenging of the false-drawing tests in Experiment 2, they significantly outperformed the normal-developing preschoolers by clearly understanding their own false intentions and another person's false beliefs about an actively misleading drawing. In Experiment 3, preschoolers outperformed older deaf and autistic children on standard tasks, but did less well on a task that required the drawing of a false belief. Methodological factors could not fully explain the findings, but early social and conversational experiences in the family were deemed likely contributors.  相似文献   

8.
A total of 71 11‐year‐old children were asked to draw two pictures: one by copying and one from memory. The quality of each of their drawings was assessed on a five‐point scale by four adult judges rating independently. The cognitive style of each child was assessed by means of the Cognitive Styles Analysis. A significant effect of Verbal‐Imagery Style was observed in which Verbalisers were superior to Imagers in overall drawing performance. There was also a significant interaction between drawing task‐type and gender in which females were superior to males, particularly in drawing from memory. These findings were discussed in terms of the representation of information in memory.  相似文献   

9.
Given that gestures may provide access to transitions in cognitive development, preschoolers' performance on standard tasks was compared with their performance on a new gesture false belief task. Experiment 1 confirmed that children (N=45, M age=54 months) responded consistently on two gesture tasks and that there is dramatic improvement on both the gesture false belief task and a standard task from ages 3 to 5. In 2 subsequent experiments focusing on children in transition with respect to understanding false beliefs (Ns=34 and 70, M age=48 months), there was a significant advantage of gesture over standard and novel verbal-response tasks. Iconic gesture may facilitate reasoning about opaque mental states in children who are rapidly developing concepts of mind.  相似文献   

10.
The creative and flexible use of symbols is a unique human ability. In order to use a symbol, one must understand the basic relation between the symbol and what it represents. How do young children come to appreciate such relations? One possibility is that insight into one symbolic relation helps children appreciate different ones. The 3 studies presented here support this possibility. In Experiments 1 and 2, both 2.5- and 3.0-year-old children showed transfer from an easy task that required appreciation of a model-room symbolic relation to a more difficult one, one that children their age typically do not appreciate. In Experiment 3, 2.5-year-olds showed transfer between symbol types: Experience with a model-room relation helped them appreciate a map-room relation. These transfer effects are consistent with the claim that early experience with symbolic relations contributes to symbolic sensitivity, a basic readiness to recognize that one object or event may stand for another.  相似文献   

11.
In two experiments, we investigated which of the factors generation, visualization, and externalization mainly contribute to the benefits of learner-generated drawing. We also examined whether benefits of drawing were more pronounced in delayed rather than in immediate testing. To this end, Experiment 1 (N = 121) focused on the comparison of the factors visualization and generation, whereas Experiment 2 (N = 204) focused on the role of externalization in generative learning activities. In both experiments, participants were asked to read an expository text about biomechanics in human swimming behavior. In Experiment 1, participants were instructed either to construct drawings, to write summaries, to learn with multimedia material, or to only read. In Experiment 2, participants were instructed either to construct drawings, to mentally imagine the content, or to observe a multimedia presentation evolving gradually. Learning outcomes were measured with a recognition, transfer, and drawing test. In Experiment 1, the tests were administered immediately and after one week (within-subjects), whereas in Experiment 2 time of testing was manipulated between subjects. The results of both experiments revealed effects of experimental conditions for transfer and drawing performance, but not for recognition performance. Taken together, the findings indicate that visualization and externalization are the main contributing factors: The drawing and multimedia conditions outperformed the summary and text-only conditions (Exp. 1), thereby supporting the role of visualization, whereas the drawing and observation conditions outperformed the imagery conditions on the drawing test (Exp. 2), thereby emphasizing the role of externalization. There is little evidence that drawing constitutes a desirable difficulty.  相似文献   

12.
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   

13.
Hearing loss during the critical period for language acquisition restricts spoken language input. This input limitation, in turn, may hamper syntactic development. This study examined the comprehension, production, and repetition of Wh-questions in deaf or hard-of-hearing (DHH) children. The participants were 11 orally trained Hebrew-speaking children aged 9.1-12.4 with moderate-to-profound hearing loss from birth, who consistently used hearing aids or cochlear implants and who had difficulties understanding relative clauses. Experiment 1 tested the comprehension of Wh-questions using a picture selection task, comparing subject with object questions and who- with which-questions; Experiment 2 tested the production of subject and object who-questions using an elicitation task; and Experiment 3 tested the repetition of Wh-questions and other structures derived by Wh-movement. All the DHH participants showed difficulty in the comprehension, production, and repetition of object questions, and their performance was significantly below that of hearing children. In contrast, they repeated embedded sentences without movement well, indicating that their deficit is in syntactic movement rather than embedding or the CP node in the syntactic tree. The results provide additional evidence that DHH children have difficulties with Wh-movement and emphasize that Wh-questions, which are crucial for communication, can be severely impaired in these children.  相似文献   

14.
Conclusion There is no doubt that composing can add much to children's potential for learning at the preschool level. It is critical, however, that the writing should always be for meaningful communication. A play environment is rich with opportunities for meaningful labeling, drawing, and sending of messages. Preschool teachers do not have to succumb to a ditto and workbook approach to writing filtered down from the elementary school curriculum. Older children may not have trouble understanding the purposes for isolate drills, tracing, and copying from the board, but younger children become bewildered by such an abstract instruction. Their writing needs to emerge from drawing and dictating and from first-hand experiences. Their audiences must be immediate.When preschool teachers are sensitized to the values of writing for children and provide a stimulating environment in their classrooms, children will learn to write (and read) easily and naturally and will come to their elementary school experiences with a much more solid foundation for the basic skills.Linda Leonard Lamme is Associate Professor and Chair of the Early Childhood Program and Patricia Denny is a doctoral candidate in early childhood education at the University of Florida in Gainesville.  相似文献   

15.
Abstract Forty‐two children aged between 2 years and 4 years 11 months were asked to draw a person. Their drawings were categorised as (1) scribbles, (2) distinct forms, (3) tadpoles, (4) transitional and (5) conventional figures. The first representational figures, the tadpoles, appeared at an average age of 3 years 1 month. It was predicted that if tadpole figures result from the complexity of the task rather than from a conceptual difficulty then tasks with reduced demands (a copying task, a jig‐saw task, and a dictation task) should facilitate the drawing of conventional figures. In fact, few conventional figures were produced and the tadpole form was highly resistant across the different tasks.

Six of the children were followed longitudinally over a one‐year period from a pre‐representational to a conventional stage of human figure drawing. Spontaneous drawings as well as drawings from six test sessions were collected in order to check whether all children drew ‘tadpole’ forms before they produced conventional figures and whether the conventional figures were adapted from the tadpoles. Four of the children did produce tadpole forms; two did not, but were probably specifically tutored in the conventional form by a peer or parents. There were wide individual differences in the nature of the transition from one form to the next, but there was no clear evidence that the conventional figure had been adapted from the tadpole form.  相似文献   


16.
The effects of orally presented storybook models on children's cognitive achievement behavior were assessed in two experiments. Experiment I involved 100 preschool-age children who were given one exposure to either a story depicting achievement behaviors by a male/female model, or a control story describing no achievement behavior. Subjects then were asked to perform a related achievement task. No significant modeling effects were found, but a significant relationship existed between the children's recall of the story content and their performance on the subsequent task. Experiment 11 employed 60 preschool-age children who were given repeated exposures (3 to 4) to, and group discussion of, the same achievement stories or non-achievement control story. A significant relationship was observed between type of story and type of solutions to the subsequent achievement task. These findings are discussed in the context of modeling theory, with practical implications.  相似文献   

17.
This study investigated the development of rapid visual object categorization. N = 20 adults (Experiment 1), N = 21 five to six-year-old children (Experiment 2), and N = 140 four-, seven-, and eleven-month-old infants (Experiment 3; all predominantly White, 81 females, data collected in 2013–2020) participated in a fast periodic visual stimulation electroencephalographic task. Similar categorization of animal and furniture stimuli emerged in children and adults, with responses much reduced by phase-scrambling (R2 = .34–.73). Categorization was observed from 4 months, but only at 11 months, high-level cues enhanced performance (R2 = .11). Thus, first signs of rapid categorization were evident from 4 months, but similar categorization patterns as in adults were recorded only from 11 months on.  相似文献   

18.
Previous research yielded conflicting results about when children can accurately assess their epistemic states in different hiding tasks. In Experiment 1, ninety‐two 3‐ to 7‐year‐olds were either shown which object was hidden inside a box, were totally ignorant about what it could be, or were presented with two objects one of which was being put inside (partial exposure). Even 3‐year‐olds could assess their epistemic states in the total ignorance and the complete knowledge task. However, only children older than 5 could assess their ignorance in the partial exposure task. In Experiment 2 with one hundred and one 3‐ to 7‐year‐olds, similar results were found for children under 5 years even when more objects were shown in partial exposure tasks. Implications for children’s developing theory of knowledge are discussed.  相似文献   

19.
It is under debate whether the neural representation of numbers and letters might rely on distinct neural correlates, or on a mostly shared neural network. In the present study, a total of 47 children in fifth grade (Experiment 1) and sixth grade (Experiment 2) simply copied numbers and letters on a touch screen while brain activation changes were recorded by means of functional near‐infrared spectroscopy (fNIRS). fNIRS data of both experiments and a joint analysis revealed that a shared neural network, particularly in the left hemisphere, was activated in response to both number and letter copying. Interestingly, no difference was observed in brain activation patterns between these two stimuli, as revealed by Bayesian analysis. Our findings indicate that both number and letter copying lead to similar brain activation in children. We further suggest methodological and applied applications of these findings in the frame of educational neuroscience.  相似文献   

20.
BackgroundSchool-aged children and adolescents exposed to domestic violence (DV) disproportionality attend to threatening and sad cues in their environment. This bias in attention has been found to predict elevations in symptoms of psychopathology. Studies have yet to explore attention biases using eyetracking technology in preschool-aged children with DV exposure.ObjectiveThis study investigated whether preschool-aged children exposed to DV show vigilance to angry and sad faces versus happy faces and a target non-face stimulus relative to non-exposed children, and whether such vigilance relates to child social-emotional development.Participants and settingPreschool-aged children were recruited from a large, diverse, urban community. DV-exposed children were recruited from a dyadic, mother-child treatment group specifically designed for, and restricted to, mothers who have experienced domestic violence (DV-exposed group, n = 23). Children with no prior exposure to DV and their mothers were recruited within the same community (non-exposed group, n = 32).MethodsChildren completed an eye-tracking task to assess their attention to face stimuli and mothers rated their children's social-emotional development. Total duration of fixations were analyzed.ResultsResults showed that DV-exposed children have a significantly stronger attention bias away from sad faces (p = 0.03; d = 0.62) and neutral faces (p = 0.02; d = 0.70) relative to non-exposed children, and this attention bias away from sad and neutral faces is associated with child social-emotional problems. Contrary to our hypothesis, no bias towards anger was found for DV-exposed versus non-exposed children.ConclusionsThis study contributes to growing evidence that young children's negative attention biases influence functioning and have important implications for children's well-being and development.  相似文献   

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