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1.
The effects of salience on 4- and 6-year-old children's ability to classify multiplicatively was investigated. A rank-ordered salience hierachy consisting of 3 dimensions was first assessed for each S. Several weeks later half the Ss of each age group were presented with a series of 9 3 times 3 matrix problems consisting of values from 2 dimensions ranked high in salience. The remaining half received identically structured matrices consisting of values from 1 highly salient dimension and of others from a dimension ranked low in salience. The goal in each problem was to select that compound stimulus from a set of alternatives that appropriately filled an empty cell in the matrix. Prior to the matrix problems, half the Ss in each matrix condition received sensitization training designed to increase the salience of the relevant dimensions in the matrix problems. The results showed that the pre-assessed salience of the relevant dimensions affected matrix solution in that more accurate performance was associated with those problems with both relevant dimensions relatively high in salience than those with one high and one low. Although the older Ss solved more problems, the evidence for coordination in the younger Ss was clear. No effects of sensitization training were found. 相似文献
2.
A study of seriation was conducted from the perspective of Gibson's theory of perceptual development. Kindergarten children who evidenced little seriation of height or brightness were assigned to either 1 of 3 perceptual training conditions or to a fourth, control condition. Training consisted of nonreinforced same-different judgments to wooden dowels varying in height, or in brightness, or simultaneously in height and brightness. The theoretical rationale for this training was that it would facilitate perception of the stimulus dimension(s) on which the dowels differed. It was found that perceptual training did facilitate seriation, particularly if both the height and brightness dimensions varied simultaneously in training. 相似文献
3.
A core task in language acquisition is mapping words onto objects, actions, and events. Two studies investigated how children learn to map novel labels onto novel objects. Study 1 investigated whether 10-month-olds use both perceptual and social cues to learn a word. Study 2, a control study, tested whether infants paired the label with a particular spatial location rather than to an object. Results show that 10-month-olds can learn new labels and do so by relying on the perceptual salience of an object instead of social cues provided by a speaker. This is in direct contrast to the way in which older children (12-, 18-, and 24-month-olds) learn and extend new object names. 相似文献
4.
3-year-olds were shown triads of rectangles and asked to select the "big" one, where the biggest rectangle in each triad was neither the tallest nor the widest. Dimensional salience and response choice were highly related. In addition, as saliency of a particular dimension increased relative to the other dimension, significantly more responses were based on that dimension. The results support the notion that the young child does not rely on 1 specific dimension to make judgments of bigness but, rather, attends to the most salient differences among stimuli. 相似文献
5.
Conceptual Coherence in the Child's Theory of Mind: Training Children to Understand Belief 总被引：2，自引：0，他引：2
Intuitive theories are defined as coherently interrelated systems of concepts that generate explanations and predictions in a particular domain of experience. 2 studies tested whether the child's theory of mind can be characterized as an intuitive theory. In Study 1, 3-year-old children who did not pass a false belief pretest were trained in 2 groups: (1) on the concept of belief, or (2) on the related concepts of desire and perception. Training took place over 2 weeks, with children given mental state tasks and receiving feedback according to their performance. Both training groups showed improved false belief performance on the posttest, compared to a control group trained on number conservation. This result is interpreted as demonstrating coherence in the child's theory of mind. In Study 2, these findings were repeated and expanded: training on belief as well as training on desire and perception resulted in improved performance on a variety of standard theory of mind posttests. Results are discussed with respect to competing theories of children's intuitive psychological knowledge. 相似文献
6.
Action speaks louder than words: young children differentially weight perceptual, social, and linguistic cues to learn verbs 总被引：1，自引：1，他引：0
This paper explores how children use two possible solutions to the verb-mapping problem: attention to perceptually salient actions and attention to social and linguistic information (speaker cues). Twenty-two-month-olds attached a verb to one of two actions when perceptual cues (presence/absence of a result) coincided with speaker cues but not when these cues were placed into conflict (Experiment 1), and not when both possible referent actions were perceptually salient (Experiment 2). By 34 months, children were able to override perceptual cues to learn the name of an action that was not perceptually salient (Experiment 3). Results demonstrate an early reliance on perceptual information for verb mapping and an emerging tendency to weight speaker information more heavily over developmental time. 相似文献
7.
Pigeons were trained using a symbolic delayed matching-to-sample procedure involving bright versus dim houselight samples.
We hypothesized that when sample stimuli differ in salience, increasing the size of the retention interval will affect performance
on trials initiated by the more salient sample only. In agreement with this prediction, accuracy following the dim sample
did not decline as the retention interval increased, whereas accuracy following the bright sample declined to well below 50%
correct. In a second experiment, the less salient (dim) sample from Experiment 1 was arranged as the more salient sample in
a sample/no-sample procedure. Accuracy on dim sample trials then declined to well below 50% correct as the retention interval
increased, whereas accuracy on no-sample trials remained constant. The results suggest that when sample stimuli differ in
salience, pigeons may transform the nominal discrimination task into a detection task in which they respond on the basis of
the presence or absence of the more salient sample. 相似文献
8.
Harris M 《Journal of deaf studies and deaf education》2001,6(3):177-185
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
9.
Developmental intergroup theory would predict that children develop fewer or weaker stereotypes about toys that have less distinguishable gender attributes than those that are clearly associated with a gender. The purpose of this study was to investigate the role of neutral and ambiguous toys in 31 three‐ to five‐year‐old children’s play behaviour and understanding about gender. Overall, children did not categorise more perceptually salient (ambiguous) toys than less distinguishable (neutral) toys to their own gender. Colour was the most frequently used reason for the toys’ gender assignment. The findings also showed that with age, girls’ play complexity increased linearly, whereas boys’ scores did not. A play substitution scale measuring play creativity or maturity showed no gender differences. The discussion highlights the role of perceptual salience in sex‐dimorphic toy preferences and behaviour and their application to educational issues. 相似文献
10.
The facilitation of selective attention in preschoolers 总被引：1，自引：0，他引：1
Allocation of attention was examined on a selective attention task in which some items were relevant (i.e., their locations should be remembered) and some were irrelevant. 100 4- and 5-year-olds formed 4 experimental conditions and 1 control group. 3 experimental groups had 1 added feature to aid selectivity (fewer stimuli, increased perceptual salience of the difference between relevant and irrelevant stimuli, or extra reminders of the locations of relevant and irrelevant stimuli). The fourth experimental condition included all features. A story and explicit instructions identified which objects were relevant. During study times, children opened doors (marked with cages or houses) of a box to reveal animals or household objects. Selectivity (opening mainly relevant doors) was high, compared to previous studies using no story with 6-year-olds, even in the control condition. Selectivity increased significantly beyond the level in the control condition only when all facilitative features were combined. Selectivity was not significantly related to recall. This outcome, in conjunction with previous research, suggests a lag between the production of a strategy and its facilitative effect on recall. 相似文献
11.
The present study extends earlier work on parental teaching style by making the task to be completed less structured, extending parent-child interaction over a 2 week time period, and equalizing the expertise of the parent relative to the child. Additionally, the study examines the effects of parental intrusiveness on a subsequent task. Subjects were 22 Caucasian middle class parent-child dyads. Audiorecordings were taped over a 2-week period while dyads were learning aspects of Logo computer programming. Even in this prolonged nonspecific learning situation, in which parents were encouraged to proceed at the child's pace, parents were overwhelmingly directive. Additionally, children of directive parents performed best on a subsequent generalization task. 相似文献
12.
Children use the presence of familiar objects with known names to identify the correct referents of novel words. In natural environments, objects vary widely in salience. The presence of familiar objects may sometimes hinder rather than help word learning. To test this hypothesis, 3-year-olds (N = 36) were shown novel objects paired with familiar objects that varied in their visual salience. When the novel objects were labeled, children were slower and less accurate at fixating them in the presence of highly salient familiar objects than in the presence of less salient familiar objects. They were also less successful in retaining these word-referent pairings. While familiar objects may facilitate novel word learning in ambiguous situations, the properties of familiar objects matter. 相似文献
13.
Differing levels of gender salience in preschool classrooms: effects on children's gender attitudes and intergroup bias 总被引：1，自引：0，他引：1
Developmental intergroup theory posits that when environments make social-group membership salient, children will be particularly likely to apply categorization processes to social groups, thereby increasing stereotypes and prejudices. To test the predicted impact of environmental gender salience, 3- to 5-year-old children (N = 57) completed gender attitude, intergroup bias, and personal preference measures at the beginning and end of a 2-week period during which teachers either did or did not make gender salient. Observations of peer play were also made at both times. After 2 weeks, children in the high- (but not low-) salience condition showed significantly increased gender stereotypes, less positive ratings of other-sex peers, and decreased play with other-sex peers. Children's own activity and occupational preferences, however, remained unaffected. 相似文献
14.
Lisa S. Freund 《Child development》1990,61(1):113-126
This study focused on a social interaction theory of the development of cognitive self-regulation. Specifically, the effect of mother-child interaction on the child's ability to problem solve was investigated. The general predictions were (1) children who interacted with their mothers throughout a problem-solving task would subsequently exhibit improved independent performance over practice-control children, who received corrective feedback from a female experimenter at the end of the task; (2) mothers would be more responsible for task activities, would more often regulate their child's task behaviors, and offer more specific verbal content when task demands on child competence increased than when they decreased. 60 3- and 5-year-olds either worked with their mothers or practiced alone and were given corrective feedback on a sorting task in which miniature pieces of furniture were placed in a doll house. As predicted, children who interacted with their mothers subsequently created more correct, adult-like groupings independently than children who received corrective feedback. Mothers displayed more task responsibility and regulation with younger children and when task demands on children of both age groups increased. Maternal verbal content became less specific when task demands decreased. Child performance was related to (1) variation in maternal regulation of the child; and (2) degree of specificity of maternal verbal content. 相似文献
15.
This study examined whether children’s difficulties with stage‐salient tasks served as an explanatory mechanism in the pathway between their insecurity in the interparental relationship and their disruptive behavior problems. Using a multimethod, multi‐informant design, 201 two‐year‐old children and their mothers participated in 3 annual measurement occasions. Structural equation modeling analyses indicated that coder ratings of children’s insecure responses to interparental conflict from a maternal interview predicted observer ratings of their difficulties with stage‐salient tasks (i.e., emotion regulation, autonomy, resourceful problem solving) 1 year later after controlling for initial stage‐salient task performance. Stage‐salient task difficulties, in turn, predicted experimenter reports of children’s behavior problems 1 year later. Associations remained robust in the broader context of other pathways hypothesized in prevailing developmental cascade models. 相似文献
16.
Interference control in a new rule use task: age-related changes, labeling, and attention 总被引：3，自引：0，他引：3
Three experiments examined 3- to 6-year-olds' interference control using a task in which children saw 2 corresponding sets of colored cards, a large set in front of them and a small set behind them. A colored candy (Smartie) was placed on a large card with mismatching color, and children could win the Smartie by selecting the small card that matched the color of the large card. Three-year-olds performed poorly whereas older children performed well. Having children label the correct color before responding improved 3-year-olds' performance (Experiment 2), as did pointing to the large card (Experiment 3); decreasing the affective salience of the stimuli (colored beads vs. Smarties) did not (Experiment 3). Results reveal the role of selective attention in action control. 相似文献
17.
K A Matthews 《Child development》1979,50(3):842-847
Glass and his colleagues have suggested that the type A coronary-prone behavior pattern, which is characterized by competitiveness, aggressiveness, and impatience, is a response style aimed at maintaining and asserting control over poentially uncontrollable events. The present investigation examined the initial reactions of type A and type B boys and men to uncontrollable events. Children and adults pressed a button to earn nickels on one of the following schedules of reinforcement: a variable ratio of 7 or a fixed ratio of 7. The variable ratio schedule was assumed to appear less controllable than the fixed ratio schedule. The task was either of high or low salience (prominence). Results replicated previous research that type A's initially respond to highly salient uncontrollable events with more vigorous efforts to assert control than type B's. More importantly, the findings provided the first evidence that (1) the initial response to loss of control of type A and type B boys parallels that of their adult counterparts; and (2) the boys' response to the salience of the task is similar to that of their adult counterparts. Implications of the children's responses to uncontrollable events for the maintenance of type A behavior into adulthood and for the etiology of heart disease are discussed. 相似文献
18.
Dimensional Strategies Dominate Perceptual Classification 总被引：3，自引：0，他引：3
Laura A. Thompson 《Child development》1994,65(6):1627-1645
The nature of perceptual classification was investigated in children ranging between 4 and 10 years, and in young adults. Triad classification task responses were categorized as consistent or inconsistent with several classification rules, including: overall-similarity, size-dimensional, brightness-dimensional, pure identity, and all combinations of a switch from one rule to another midway through the experiment. The rule with the highest proportion of responses consistent with it reflectd each person's best-fitting rule pattern. The higher this value, the higher the assumed consistency of rule usage. Data from the majority of individuals in every age group conformed best to one of the three dimensional rules. In addition, the consistency values for individuals' best-fitting rule became significantly higher as age increased. It is concluded that most children have a tendency to attend selectively to one stimulus dimension when making perceptual classification judgments. The developmental trend in perceptual classification does not appear to be a holistic-to-analytic shift; instead, it is a trend toward greater consistency in following a given classification rule. 相似文献
19.
In order to investigate the relation between reading accuracy and speech processing, 20 children from grades 2 and 3 who were
skilled in reading were compared with 20 less skilled readers on a speech perception and production task. The two groups of
readers were indistinguishable in their production of the two-syllable words dippy, deepy, tippy, and teepy and in their perception
of the stop consonants /d/ versus /t/. Less skilled readers were significantly less accurate than the skilled readers in a
vowel identification task involving the lax and tense high vowels /i/ and /i/. The error pattern for vowel identification was similar across groups, with both groups making fewer errors when
short and longer segments were alternated. The results imply that vowel phonemes are less securely represented in the perceptual
system of less skilled readers than are consonant phonemes. In addition, the results raise the possibility that a selective
perceptual impairment underlies at least some of the phonemic awareness problems that have been associated with poor reading. 相似文献
20.
Conditioned attention theory (CAT) of latent inhibition (LI) states that parallel learning processes occur during reinforced and nonreinforced stimulus presentation. The present experiments investigated the effects of nonreinforced preexposure of either a compound CS or elements of that compound which differed in salience. Three predictions were advanced: (1) Both the compound and its elements will show an increase in LI as a function of the number of preexposures; (2) the two elements will show different levels of LI, with more LI accruing to the more salient element; (3) overshadowing will occur during compound preexposure. Two experiments, using rats as subjects and a conditioned suppression test, are reported. In Experiment 1, groups received 0, 20, 40, or 80 nonreinforced preexposures to a compound whose elements differed in salience. The results of the subsequent test confirmed predictions 1 and 2. Experiment 2, in which groups were preexposed to either the elements or the compound, provided evidence for an overshadowing effect, confirming prediction 3 from CAT. 相似文献