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1.
A key acquisition in the child's developing knowledge of the mind is the subjective-objective distinction, which includes a clear understanding that things may appear to be other than the way they really are (appearance-reality distinction) and may present different appearances to self and others (Level 2 perspective-taking). Previous studies using tasks involving visual appearances have found that most children do not show such understanding until 4 or 5 years of age. However, a conceptual analysis of tactile as compared to visual and other perceptual experiences suggested the hypothesis that this understanding might appear earlier if the appearances the child must identify are tactile rather than visual. This hypothesis was supported by the results of 3 studies. In Studies 1 and 2, 3-year-old subjects could correctly indicate, for example, that an ice cube they were feeling with a heavily gloved finger did not feel cold to that finger (tactile appearance for the self), did feel cold to the experimenter's ungloved or thinly gloved finger (tactile appearance for another person), and was a cold ice cube, really and truly (reality). In contrast, and consistent with previous research findings, they were much poorer at distinguishing between real and visually apparent object identity, number, and color. Similarly, in Study 3 they tended to perform better on tactile appearance-reality tasks involving the properties of number, wetness, and intactness than on visual appearance-reality tasks that involved these same properties.  相似文献   

2.
Two studies explored 3- and 4-year-olds' (N = 60) understanding that the five senses can each lead to different types of knowledge. In Study 1, 40 children engaged in five scenarios in which they could only perform one sensory action to identify the property of an object (e.g., color, scent). After performing the action, children were asked how they found out the property and to show the experimenter how they had found it out. Using a Mr. Potato Head doll, children were also asked to indicate the sensory organ the doll would need to use to identify the property. In Study 2, 20 children presented with five Mr. Potato Head dolls, each sporting only one sensory organ (e.g., a nose), were asked which Mr. Potato Head could find out the property in question. The 3-year-olds performed significantly poorer than the 4-year-olds on all tasks, suggesting a marked transition in children's ability to recognize the origin of their modality-specific knowledge during the time period between 3 and 4 years of age.  相似文献   

3.
In two studies the authors investigated the situations where 3- to 7-year-olds and adults (N = 152) will connect a person's current feelings to the past, especially to thinking or being reminded about a prior experience. Study 1 presented stories featuring a target character who felt sad, mad, or happy after an event in the past and who many days later felt that same negative or positive emotion upon seeing a cue related to the prior incident. For some story endings, the character's emotion upon seeing the cue matched, or was congruent, with the current situation, whereas for others, the emotion mismatched the present circumstances. Participants were asked to explain the cause of each character's current feelings. As a further comparison, children and adults listened to behavior cuing stories and provided explanations for characters' present actions. Study 2 presented emotional scenarios that varied by emotion-situation fit (whether the character's emotion matched the current situation), person-person fit (whether the character's emotion matched another person's), and past history information (whether information about the character's past was known). Results showed that although there were several significant developments with increasing age, even most 3-year-olds demonstrated some knowledge about connections between past events and present emotions and between thinking and feeling. Indeed, children 5 years and younger revealed strikingly cogent understanding about historical-mental influences in certain situations, especially where they had to explain why a person, who had experienced a negative event in the past, was currently feeling sad or mad in a positive situation. These findings help underwrite a more general account of the development of children's coherent understandings of life history, mind, and emotion.  相似文献   

4.
In 3 studies we investigated 3- through 6-year-olds' knowledge of thinking and feeling by examining their understanding of how emotions can change when memories of past sad events are cued by objects in the current environment. In Study 1, 48 4-, 5-, and 6-year-olds were presented with 4 illustrated stories in which tocal characters experience minor sad events. Later, each story character encounters a visual cue that is related to one of his or her previous sad experiences. Children were told that the character felt sad and they were asked ot explain why. Study 1 suggested considerable competence as well as substantial development in the years between 4 and 6 in the understandings of the influence of mental activity on emotions. Studies 2 and 3 more systematically explored preschoolers' understanding of cognitive cuing and emotional change with difterent types of situations and cues. Across these 2 studies, 108 3-, 4-, and 5-year-olds listened to illustrated stories that featured story characters who each experienced a sad event and swho were later exposed to a related cue. Children were not only asked to explain why the characters suddenly felt sad, but in some stories, they were also asked to predict and explain how another character, who was never at the past sad event, would feel. Results of studies 2 and 3 showed an initial understanding of cognitive cuing and emotion in some children as young as 3, replicated and extended the evidence for significant developmental changes in that understanding during the preschool years, and revealed that the strenght and consistency of preschoolers' knowledge of cognitive cuing and emotion was affected by whether cues were the sme, or only similar to, parts of the earlier events.  相似文献   

5.
3 experiments were conducted to investigate the claim made by Wimmer, Hogrefe, and Perner that 3-4-year-old children do not understand that people gain knowledge about something by looking at it. The first experiment involved a simple forced-choice procedure in which children had to judge which of 2 assistants knew what was inside a box when one of the assistants had looked inside and the other had lifted it up. In this experiment, the children did realize that the assistant who had looked in the box knew its contents. The second experiment followed the Wimmer et al. procedure, but with a simpler question form. The children were just asked to state whether someone knew what was in the box. Again, the children were able to work out that a person who had looked in a box knew what was inside it. In the third experiment, a direct comparison was made between the simpler question and the more complex, double-barreled question asked by Wimmer et al. The children found the more complex question considerably harder. The results of these experiments suggest that, in contrast to the claims made by Wimmer et al., 3- and 4-year-old children do understand that looking leads to knowing, and that their difficulty in the Wimmer et al. study was mainly with the form of the question that they were asked.  相似文献   

6.
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   

7.
12-month-old infants were familiarized either tactually or visually with objects and then tested for visual recognition memory using either (1) the familiar and a novel object, (2) colored pictures of the objects, or (3) outline drawings of them. In Study 1, infants showed recognition memory on all 3 visual intramodal problems but showed cross-modal transfer only when objects were used as test stimuli. With increased familiarization times in Study 2, transfer from tactually presented samples to both pictorial displays was achieved, indicating that after feeling an object the infants were able to recognize it visually solely on the basis of its contour. With reduced familiarization times in Study 3, there was no evidence for transfer from visually presented samples to the 2 pictorial displays, replicating the pattern of results observed cross-modally in Study 1 and suggesting that, at least in certain respects, cross-modal and intramodal perception follow similar principles.  相似文献   

8.
Previous research has indicated that preschoolers do not distinguish between properties that are generalizable within a given category and those that are not. 2 possible general constraints on children's cognition are proposed to account for these findings. 3 studies are reported that argue against the presence of such general constraints. We examine preschoolers' understanding of the properties associated with material (e.g., wood, cotton) and object (e.g., chair, pillow) categories. In Study 1, subjects consistently made inductions based on the material compositions of items when asked to predict texture and fragility. In Study 2, the same subjects judged that items that shared material would share an unfamiliar dispositional property (e.g., gets sodden in water), but items that shared object kind would share a novel functional property (e.g., used for accelerating). Study 3 tested a younger sample of 3-year-olds and found the same sensitivity to category type, albeit with larger individual differences. By age 3, children use different modes of categorization to generalize different kinds of phenomena. These results argue against general limitations on children's abilities to use categories to make inductions. Even when children lack specific theoretical knowledge, the ability to organize phenomena into domains allows children to recognize which categories are relevant in different situations. This understanding can provide a basis for the development of more specific theories.  相似文献   

9.
Adults’ body representation is constrained by multisensory information and knowledge of the body such as its possible postures. This study (N = 180) tested for similar constraints in children. Using the rubber hand illusion with adults and 6- to 7-year olds, we measured proprioceptive drift (an index of hand localization) and ratings of felt hand ownership. The fake hand was either congruent or incongruent with the participant’s own. Across ages, congruency of posture and visual–tactile congruency yielded greater drift toward the fake hand. Ownership ratings were higher with congruent visual–tactile information, but unaffected by posture. Posture constrains body representation similarly in children and adults, suggesting that children have sensitive, robust mechanisms for maintaining a sense of bodily self.  相似文献   

10.
11.
Past research demonstrates that children learn from a previously accurate speaker rather than from a previously inaccurate one. This study shows that children do not necessarily treat a previously inaccurate speaker as unreliable. Rather, they appropriately excuse past inaccuracy arising from the speaker's limited information access. Children ( N = 67) aged 3, 4, and 5 years aimed to identify a hidden toy in collaboration with a puppet as informant. When the puppet had previously been inaccurate despite having full information, children tended to ignore what they were told and guess for themselves: They treated the puppet as unreliable in the longer term. However, children more frequently believed a currently well-informed puppet whose past inaccuracies arose legitimately from inadequate information access.  相似文献   

12.
Children tend to extend object names on the basis of sameness of shape, rather than size, color, or material-a tendency that has been dubbed the "shape bias." Is the shape bias the result of well-learned associations between words and objects? Or does it exist because of a general belief that shape is a good indicator of object category membership? The present three studies addressed this debate by exploring whether the shape bias is specific to naming. In Study 1, 3-year-olds showed the shape bias both when asked to extend a novel name and when asked to select an object of the same kind as a target object. Study 2 found the same shape bias when children were asked to generalize properties relevant to category membership. Study 3 replicated the findings from Study 1 with 2-year-olds. These findings suggest that the shape bias derives from children's beliefs about object kinds and is not the product of associative learning.  相似文献   

13.
This paper examines the role of tactile perception in conceptual construction of forces and fields. The learning environment includes a simulation of a force field. The force applied by the field on an object is transferred to the learner's hand through a tactile interface designed as a trackball. The learner experiences varying resistance from the trackball when moving an object on the screen. The forces are actually “felt”, exerted on the screen-object as if the learner's hand is immersed in the “field.” We hypothesize that a tactile interface acts as an agent aimed at recruiting the body non-propositional knowledge, for construction of formal physics knowledge on fields of forces. Twelve subjects were asked to explore the structure of several invisible fields through tactile interface, then to design a series of situations that generate current and that energetically trap a particle in a particular area. The results of the study show that s tudents with no background in physics constructed a graphical representation of a field force of a single and double center of forces similar to the formal physics representation, though they had no conceptual background (i.e., vectors, field lines). Based on the tactile information, they constructed a representation of force as a vector, of force lines, equal-force lines (potential lines for particular cases), potential well (“trap”) and motion of a charged particle in a field of forces. We show that computer tactile interface acts as a trigger for access to non-propositional knowledge employed in everyday bodily activity, but not in formal learning. The computer environment turns into a virtual environment, carrying the features of perception within “reality”, providing opportunities for conceptual construction.  相似文献   

14.
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   

15.
Children acquire general knowledge about many kinds of things, but there are few known means by which this knowledge is acquired. In this article, it is proposed that children acquire generic knowledge by sharing in pretend play. In Experiment 1, twenty-two 3- to 4-year-olds watched pretense in which a puppet represented a "nerp" (an unfamiliar kind of animal). For instance, in one scenario, the nerp ate and disliked a carrot. When subsequently asked generic questions about real nerps, children's responses suggested that they had learned general facts (e.g., nerps dislike carrots). In Experiment 2, thirty-two 4- to 5-year-olds learned from scenarios lacking pretend speech or sound effects. The findings reveal a long overlooked means by which children can acquire generic knowledge.  相似文献   

16.
The research reported here shows that under certain circumstances even 24-month-old children can display representational insight. Seventy-nine children participated in 3 studies in which a photo or video presentation could be used to guide their search for a hidden object. Studies 1 and 2 replicated earlier findings of chance performance levels across 4 trials. However, on their first trial, 24-month-olds performed above chance in 3 of 4 conditions in these experiments. Study 3 therefore presented children not with the typical 4 trials in 1 room, but with 1 trial each in 4 different rooms. This manipulation ruled out perseveration errors and resulted in above-chance performance in average mean retrieval rates. These results call for first-trial reanalyses of earlier studies.  相似文献   

17.
Recent analyses of natural kind terms (e.g., dog, gold) suggest that people expect members of a kind to share unforeseen properties. The present study investigated the development of this expectation by studying children's inductive inferences. On each of a series of problems, 3- and 4-year-old children were taught a new fact about an object and then were asked whether it would generalize to: an object that looked like the original, that had the same label as the original, that looked like the original and had the same label, or that differed from the original in both respects. The results indicate that 3- and 4-year-olds drew more inferences based on category membership than on perceptual appearances, when both were available. Furthermore, children often based their inferences on category membership even when no label was provided. Thus even 3-year-olds assumed that natural kind categories include more than superficial features.  相似文献   

18.
Development of knowledge of visual-tactual affordances of substance   总被引:2,自引:0,他引:2  
Infants of 12 months were familiarized in the dark with an object of either a hard or an elastic (spongy) substance. Following 60 sec of manipulation, a visual preference test was given with simultaneous presentation of 2 films of identical objects, 1 moving in a pattern characteristic of a rigid object and 1 moving in a pattern characteristic of an elastic object. Infants handled the 2 substances differently in an appropriate manner and looked preferentially with more and longer first looks to the type of substance familiarized. A replication of this experiment with familiarization in the light yielded comparable results. A third experiment with 1-month-old infants allowed them to mouth objects of either a hard or a soft substance for haptic familiarization and then tested looking preferences with real objects moving rigidly or deforming. These infants looked longer at the object moving in a manner characteristic of the novel substance. The results, together, suggest that quite young infants detect intermodal invariants specifying some substances and perceive the affordance of the substance.  相似文献   

19.
To use a symbol to solve a problem, children must achieve representational insight; they must realize that the symbol stands for its referent. Moreover, they must keep this relation in mind as they attempt to use the symbol. The present studies investigated the achievement and maintenance of representational insight. 3-year-olds were asked to use a scale model of a room to find a toy hidden in the room. In Study 1a, children first watched as a small toy was hidden in the model. They then waited either 20 sec, 2 min, or 5 min before attempting to find a similar, larger toy that was hidden in the corresponding place in the room. All children experienced all delay intervals; three groups experienced the delays in different orders. There was a dramatic effect of delay order. The children who experienced the 20-sec delay on their first trial generally performed well throughout the 6 trials, but the children who experienced a 5-min delay first almost always failed to find the toy in the room, even on subsequent trials with shorter delays. Additional studies revealed that the negative effects of the initial long delay could be overcome by providing reminders of the model and its relevance (Studies 2 and 3) or by giving children prior experience in using the model (Study 4). The results indicate that keeping a symbol-referent relation in mind can be difficult for 3.0-year-old children. This research is discussed in terms of the importance of maintaining representational insight.  相似文献   

20.
Seventy-six children ages 3 to 5 were individually read two storybooks that had been specially formatted to contain salient printed words within the text, and illustrations and text on left or right-facing pages. The reader pointed to each word while reading to half of the children. After each book, children were asked to recognize elements of the illustrations and the specially formatted text elements from among a set of foils. Videotaped sessions were coded for the time children spent looking toward the pages with print versus illustrations. Analyses showed that the percentage of time looking at print was less than 2% in the no-pointing condition but increased with age. Pointing to the words increased print-looking time for all age groups and print target recognition for 4-year-olds. After controlling for receptive vocabulary, visual memory, and maturation associated with these scores, emergent orthography and letter-word identification predicted time looking at print and recognition of the print elements.  相似文献   

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