Theory-of-mind, cognitive development, and children's interpretation of anxiety-related physical symptoms

The present study investigated developmental patterns in children's interpretation of anxiety-related physical symptoms and emotional reasoning, and to what extent these phenomena are influenced by children's level of cognitive development. A large sample of 4-13-year-old children (N=358) were exposed to vignettes in which the presence and absence of physical symptoms was systematically varied. In addition, children completed a series of conservation tasks and a theory-of-mind-test. Results demonstrated that from the age of 7, children were increasingly able to link physical symptoms to anxiety. Furthermore, cognitive development appeared to enhance children's ability to interpret physical symptoms as a sign of anxiety. Further, children's tendency to infer danger from vignettes with physical symptoms (i.e., emotional reasoning) was already prominent in 4-6-year-olds. The implications for physical symptom-based theories of childhood anxiety are briefly discussed.     

Development of gaze aversion as disengagement from visual information

Older children, but not younger children, were found to look away more from the face of an interlocutor when answering difficult as opposed to easy questions. Similar results were found in earlier work with adults, who often avert their gaze during cognitively difficult tasks (A. M. Glenberg, J. L. Schroeder, & D. A. Robertson, 1998). Twenty-five 8-year-olds and 26 5-year-olds answered verbal reasoning and arithmetic questions of varying difficulty. The older children increased gaze aversion from the face of the adult questioner in response to both difficult verbal reasoning questions and difficult arithmetic questions. In contrast, younger children (5-year-olds) responded less consistently to cognitive difficulty. It is concluded that adultlike patterns of gaze aversion in response to cognitive difficulty are certainly acquired by 8 years of age. The implications of appropriate gaze aversion for children's management of cognitive processing resources are considered.     

Children's profiles of addition and subtraction understanding

The current research explored children's ability to recognize and explain different concepts both with and without reference to physical objects so as to provide insight into the development of children's addition and subtraction understanding. In Study 1, 72 7- to 9-year-olds judged and explained a puppet's activities involving three conceptual relations: (a) a+b=c, b+a=c; (b) a-b=c, a-c=b; and (c) a+b=c, c-b=a. In Study 2, the self-reports and problem-solving accuracy of 60 5- to 7-year-olds were recorded for three-term inverse problems (i.e., a+b-b=?), pairs of complementary addition and subtraction problems (i.e., a+b=c, c-b=?), and unrelated addition and subtraction problems (e.g., 3-2). Both studies highlighted individual differences in the concepts that children understand and the role of concrete referents in their understanding. These differences were related to using efficient procedures to solve unrelated addition and subtraction problems in Study 2. The results suggest that a key advance in children's conceptual understanding is incorporating subtractive relations into their mental representations of how parts are added to form a whole.     

Carrot-Eaters and Creature-Believers: The Effects of Lexicalization on Children's Inferences About SocialCategories

This article examines how language affects children's inferences about novel social categories. We hypothesized that lexicalization (using a noun label to refer to someone who possesses a certain property) would influence children's inferences about other people. Specifically, we hypothesized that when a property is lexicalized, it is thought to be more stable over time and over contexts. One hundred fifteen children (5- and 7-year-olds) learned about a characteristic of a hypothetical person (e.g., "Rose eats a lot of carrots"). Half the children were told a noun label for each character (e.g., "She is a carrot-eater"), whereas half heard a verbal predicate (e.g., "She eats carrots whenever she can"). The children judged characteristics as significantly more stable over time and over contexts when the characteristics were referred to by a noun than when they were referred to by a verbal predicate. Lexicalization (in the form of a noun) provides important information to children regarding the stability of personal characteristics.     

儿童数概念发展的影响因素:表面相似性效应与标签效应

本研究主要考查表面相似性效应和标签效应对60名3～5岁儿童数概念发展的影响。实验通过等量匹配任务和数量比较任务测查儿童数概念的发展情况,其中等量匹配任务和数量比较任务都包括了一致和不一致两种条件以考查表面相似性效应对儿童数概念的影响,并通过给物取数任务、给数取物任务和等量匹配任务与数量比较任务的关系测查儿童使用数字标签的能力对儿童数概念形成与发展的影响。结果表明:(1)4岁和5岁组儿童完成等量匹配任务和数量比较任务的正确率显著高于3岁组儿童;(2)儿童在一致条件下完成等量匹配和数量比较任务的正确率显著高于不一致条件的正确率,表明物体的高表面相似性有利于儿童数概念的形成;(3)擅长使用数字标签的儿童完成等量匹配任务和数量比较任务的次数超过几率水平,使用数字标签有利于儿童数概念的发展。     

Children's theories of intelligence: beliefs, goals, and motivation in the elementary years

The authors tested a developmental model of children's theories about intelligence in kindergarten, second grade, and fourth grade children by using paper-and-pencil maze tasks. Older children were more likely than younger children to espouse learning goals (e.g., that they preferred difficult mazes to improve their skill), and less likely to espouse performance goals (e.g., that they preferred easy mazes to be successful). Children in all 3 age groups reported stronger beliefs in the malleability of intelligence than the stability of intelligence. In general, the results supported the authors' hypotheses about developmental change in children's theory-like conceptions of intelligence: Beliefs, goals, and motivation were related in expected ways for second and fourth graders more than for kindergartners. The authors discussed contextual influences on children's beliefs and the development of children's conceptualizations of intelligence.     

How interviewers' nonverbal behaviors can affect children's perceptions and suggestibility

We conducted two studies to examine how interviewers' nonverbal behaviors affect children's perceptions and suggestibility. In the first study, 42 8- to 10-year-olds watched video clips showing an interviewer displaying combinations of supportive and nonsupportive nonverbal behaviors and were asked to rate the interviewer on six attributes (e.g., friendliness, strictness). Smiling received high ratings on the positive attributes (i.e., friendly, helpful, and sincere), and fidgeting received high ratings on the negative attributes (i.e., strict, bored, and stressed). For the second study, 86 8- to 10-year-olds participated in a learning activity about the vocal chords. One week later, they were interviewed individually about the activity by an interviewer adopting either the supportive (i.e., smiling) or nonsupportive (i.e., fidgeting) behavior. Children questioned by the nonsupportive interviewer were less accurate and more likely to falsely report having been touched than were those questioned by the supportive interviewer. Children questioned by the supportive interviewer were also more likely to say that they did not know an answer than were children questioned by the nonsupportive interviewer. Participants in both conditions gave more correct answers to questions about central, as opposed to peripheral, details of the activity. Implications of these findings for the appropriate interviewing of child witnesses are discussed.     

The benefits and costs of comparisons in a novel object categorization task: Interactions with development

We investigated how children use within- or between-category comparisons to generalize novel names for novel objects on the basis of a nonsalient dimension (texture) rather than a salient one (shape). Previous studies have not experimentally addressed the costs associated with comparisons. We conjectured that increasing the number of stimuli to be compared (and thus, converging evidence in favor of the target texture-based generalization), might not necessarily be beneficial, especially in young children (3- to 4-year-olds vs. 5- to 6-year-olds). Our results showed that more evidence in favor of texture (i.e., more within-category exemplars sharing the same texture) did not linearly increase texture-based choices in the same way for younger and older children. They also revealed that between-category comparisons gave rise to texture-based generalizations in both age groups. Overall, our results show that even though within- and between-category comparisons contribute to generalizations based on texture, they also generate cognitive constraints that interact with age.     

Parental conflict and children's coping styles in litigating separated families: Relationships with children's adjustment

The influence of interparental verbal and physical aggression, children's coping styles, and relevant demographic factors on children's adjustment was examined in a group of 52 families who were disputing custody and/or access arrangements after separation. It was hypothesized that parental conflict and specific children's coping strategies (i.e., cognitive redefinition and social support seeking) would be important predictors of children's adjustment. Consistent with previous research, aggressive styles of resolving conflict between parents were related to more frequent and severe behavior problems and diminished competence among children. Conversely, greater flexibility in coping and greater use of cognitive coping strategies among children were related to decreased behavioral disturbance. The unique and combined influence of these variables is discussed.This research was supported in part through a grant from the LaMarsh Research Programme on Violence and Conflict Resolution, York University, Toronto, Ontario. The author acknowledges the help of Cathy Melville and Susan Dickens in the data analyses. In addition, the author thanks the staff and families at the Toronto and London, Ontario, Family Court clinics who participated in this project.     

Children’s Judgments of Cultural Expertise: The Influence of Cultural Status and Learning Method

The authors investigated children’s use of cultural status (i.e., foreign vs. American) and learning method to evaluate informants’ expertise in novel cultural practices. Ninety-six 6- to 9-year-olds heard about a foreign informant (i.e., member of an unfamiliar out-group) and an American informant (i.e., member of the participant’s in-group) who each learned about a novel cultural practice differently (i.e., from a person vs. from a book). Participants decided which informant executed the cultural practice better, which informant they would prefer to learn from, and which learning method they would want to use themselves (i.e., learning method preference). Overall, participants endorsed foreign informants over American informants and foreign informants who learned from a person were generally viewed as the preferred option for imparting information in this context. These findings suggest that during the transition to middle childhood, learning context is an important influence on children’s evaluations of cultural identity and learning methods.     

Abraham Lincoln and Harry Potter: Children’s differentiation between historical and fantasy characters

Based on the testimony of others, children learn about a variety of figures that they never meet. We ask when and how they are able to differentiate between the historical figures that they learn about (e.g., Abraham Lincoln) and fantasy characters (e.g., Harry Potter). Experiment 1 showed that both younger (3- and 4-year-olds) and older children (5-, 6-, and 7-year-olds) understand the status of familiar figures, correctly judging historical figures to be real and fictional figures to be pretend. However, when presented with information about novel figures embedded in either a realistic narrative or a narrative with obvious fantasy elements, only older children used the narrative to make an appropriate assessment of the status of the protagonist. In Experiment 2, 3-, and 4-year-olds were prompted to judge whether the story events were really possible or not. Those who did so accurately were able to deploy that judgment to correctly assess the status of the protagonist.     

Children's implicit knowledge of harmony in Western music

Three experiments examined children's knowledge of harmony in Western music. The children heard a series of chords followed by a final, target chord. In Experiment 1, French 6- and 11-year-olds judged whether the target was sung with the vowel /i/ or /u/. In Experiment 2, Australian 8- and 11-year-olds judged whether the target was played on a piano or a trumpet. In Experiment 3, Canadian 8- and 11-year-olds judged whether the target sounded good (i.e. consonant) or bad (dissonant). The target was either the most stable chord in the established musical key (i.e. the tonic, based on do, the first note of the scale) or a less stable chord. Performance was faster (Experiments 1, 2 and 3) and more accurate (Experiment 3) when the target was the tonic chord. The findings confirm that children have implicit knowledge of syntactic functions that typify Western harmony.     

The influence of adults' actions on children's inferences about word meanings

This article first establishes the effect of adults' actions on children's inferences about the shape and material of solid objects, based on data from Japanese 2-, 4-, and 6-year-olds. Japanese 2-year-olds are already sensitive to adults' actions in making inferences, and children become more adept at this as they become older. The invariance of the phenomenon of the effect of actions is then discussed in terms of three of its aspects: across age groups, across languages (the universality of the effect), and across tasks in lexical development. It is suggested that while specific linguistic characteristics (e.g., the means of individuation of entities), and complexity of object shape probably influence the effect of actions, action effects may have a potentially invariant/universal aspect.     

Validity of a test of children's suggestibility for predicting responses to two interview situations differing in their degree of suggestiveness

In the present study the relative contributions of internal and external sources of variation in children's suggestibility in interrogative situations were examined. One hundred and eleven children (48 4- to 5-year-olds and 63 7- to 8-year-olds) were administered a suggestibility test (BTSS) and the most suggestible (N=36) and the least suggestible (N=36) children were randomly assigned to either an interview condition containing several suggestive techniques or to one containing only suggestive questions. The effects of internal sources of variation in suggestibility were compared with the effects of the interview styles on the children's answers. The former did influence the children, but the external sources of variation in suggestibility had a stronger impact. Influences of cognitive, developmental factors could be found, but not when abuse-related questions were asked and high pressured interview methods were used. These findings indicate that individual assessment of suggestibility can be of some assistance when interviewing children, but diminishing suggestive influences in interrogations must be given priority.     

Disagreement and causal learning: Others' hypotheses affect children's evaluations of evidence

When children evaluate evidence and make causal inferences, they are sensitive to the social context in which data are generated. This study investigated whether children learn more from evidence generated by an agent who agrees with them or from one who disagrees with them. Children in two age groups (5- and 6-year-olds and 9- and 10-year-olds) observed the functioning of a machine that lit up and played music in the presence of certain objects. After endorsing one of two plausible causal hypotheses, children observed a puppet either agree or disagree with their own hypotheses. The puppet then generated a further piece of evidence that confirmed, disconfirmed, or was neutral with respect to the children's hypotheses. When they were later asked to make causal inferences about objects they did not directly observe, children in both age groups responded differentially to identical evidence depending on whether the agent agreed or disagreed, and they often drew stronger inferences in response to disagreement. In addition, older children were particularly sensitive to disagreement when the evidence was ambiguous. Our results suggest that children consider the relationship between their own and others' hypotheses when evaluating evidence that others generate. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

3～4岁儿童基于可信度特质的信任判断:特质间差异和年龄特点

研究采用对偶选择的范式,通过两个实验考察了96名3～4岁儿童基于可信度特质的信任判断。研究同时测量儿童基于可信度特质(能干、友好和诚实)的信任判断能力和针对这些特质的好坏评价能力。结果发现:(1)信任判断的正确率在3种可信度特质间不存在差异。(2)在信任判断之后再进行好坏评价的情况下(实验一),4岁儿童信任判断的正确率高于3岁,在控制好坏评价能力之后,年龄差异依然存在。(3)在信任判断之前先进行好坏评价的情况下(实验二),则信任判断的正确率不存在年龄差异。这些结果表明不是因为好坏评价能力的缺陷,而可能是任务本身较重的认知负荷使得3岁儿童不能像4岁儿童那样自发地依据特质的效价信息进行信任判断。     

Indexical and symbolic referencing: what role do they play in children's success on theory of mind tasks?

Numerous measures have been employed in the last 17 years to assess theory of mind (ToM). The literature reports marked variability in the age at which children succeed on these measures. To account for this variability, researchers have provided explanations ranging from cognitive shifts and voids to the inability to understand the language of the tasks or to social/pragmatic considerations, all of which tell us little if anything about the internal mechanism underlying ToM. The main purpose of this paper is to provide a comprehensive theoretical account of children's success and the discrepancies found across different ToM tasks. We test the hypothesis that children's understanding of ToM is sensitive to the basic elements of language, that is, to whether the language is indexical or symbolic. Support for this account was found in the analysis of selected test protocols in four published studies of ToM, and new data collected from 53 children (4--6 years) which showed that a higher percentage of children succeeded on tasks with a high ratio of indexical to symbolic references than on tasks with a high ratio of symbolic to indexical references. There was also a main effect of age with older children succeeding at higher rates on both tasks than younger children. Our findings suggest that indexical representation can afford ToM understanding in 4-year-olds, but is not sufficient for a more mature ToM. The latter requires symbolic representation that was demonstrated by the majority of 5--6-year-olds.     

Sad or fearful? The influence of body posture on adults’ and children’s perception of facial displays of emotion

The current research investigated the influence of body posture on adults' and children's perception of facial displays of emotion. In each of two experiments, participants categorized facial expressions that were presented on a body posture that was congruent (e.g., a sad face on a body posing sadness) or incongruent (e.g., a sad face on a body posing fear). Adults and 8-year-olds made more errors and had longer reaction times on incongruent trials than on congruent trials when judging sad versus fearful facial expressions, an effect that was larger in 8-year-olds. The congruency effect was reduced when faces and bodies were misaligned, providing some evidence for holistic processing. Neither adults nor 8-year-olds were affected by congruency when judging sad versus happy expressions. Evidence that congruency effects vary with age and with similarity of emotional expressions is consistent with dimensional theories and "emotional seed" models of emotion perception.     

The development of afterlife beliefs in religiously and secularly schooled children

Children aged from 4;10 to 12;9 attending either a Catholic school or a public, secular school in an eastern Spanish city observed a puppet show in which a mouse was eaten by an alligator. Children were then asked questions about the dead mouse's biological and psychological functioning. The pattern of results generally replicated that obtained earlier in an American sample, with older children being more apt to state that functions cease after death than younger children (11- to 12-year-olds > 8- to 9-year-olds > 5- to 6-year-olds), and all children being more likely to attribute epistemic, desire, and emotion states to the dead mouse than biological, psychobiological, and perceptual states. Although children attending Catholic school were generally more likely to state that functions continue after death than children attending secular school, the pattern of change with regard to question type did not differ between the Catholic and secular groups. The results were interpreted as reflecting the combined roles of religious instruction/exposure and universal ontogeny of cognitive abilities on the development of children's afterlife beliefs.     

Sensitivity of 4-year-olds to featural and second-order relational changes in face distinctiveness

Sensitivity to adult ratings of facial distinctiveness (how much an individual stands out in a crowd) has been demonstrated previously in children age 5 years or older. Experiment 1 extended this result to 4-year-olds using a "choose the more distinctive face" task. Children's patterns of choice across item pairs also correlated well with those of adults. In Experiment 2, original faces were made more distinctive via local feature changes (e.g., bushier eyebrows) or via relational changes (spacing changes, e.g., eyes closer together). Some previous findings suggest that children's sensitivity develops more slowly to relational changes than to featural changes. However, when we matched featural and relational changes for effects on distinctiveness in adult participants, 4-year-olds were equally sensitive to both. Our results suggest that (a) 4-year-olds' face space has important aspects of structure in common with that of adults and that (b) there is no specific developmental delay for a second-order relational component of configural/holistic processing.