Object boundaries influence toddlers' performance in a search task

Previous research has shown that young children have difficulty searching for a hidden object whose location depends on the position of a partly visible physical barrier. Across four experiments, we tested whether children's search errors are affected by two variables that influence adults' object-directed attention: object boundaries and proximity relations. Toddlers searched for a car that rolled down a ramp behind an occluding panel and stopped on contact with a barrier. The car's location on each trial depended on the placement of the barrier behind one of two doors in the panel. In Experiment 1, when a part of the car (a pompom on an antenna) was visible at the same distance from the object as the barrier wall in past research, search performance was above chance but below ceiling. In Experiments 2 and 3, when the visible part was close to the hidden body of the car and could be seen through one of two windows in the doors of the occluding panel, performance was near ceiling. In Experiment 4, when only the barrier was visible through one of the same windows, performance was at chance. Toddlers' search for a hidden object therefore is affected by the proximity of a visible part of the object, though not by the proximity of a separate visible landmark. These findings suggest a parallel between the object representations of young children and those of adults, whose attention is directed to objects and spreads in a gradient-like fashion within an object.     

The effects of bilingualism on toddlers' executive functioning

Bilingual children have been shown to outperform monolingual children on tasks measuring executive functioning skills. This advantage is usually attributed to bilinguals’ extensive practice in exercising selective attention and cognitive flexibility during language use because both languages are active when one of them is being used. We examined whether this advantage is observed in 24-month-olds who have had much less experience in language production. A battery of executive functioning tasks and the cognitive scale of the Bayley test were administered to 63 monolingual and bilingual children. Native bilingual children performed significantly better than monolingual children on the Stroop task, with no difference between groups on the other tasks, confirming the specificity of bilingual effects to conflict tasks reported in older children. These results demonstrate that bilingual advantages in executive control emerge at an age not previously shown.     

Parental personality,parenting and toddlers' externalising behaviours

This study examined the mediating role of parenting on the relation between parental personality and toddlers' externalising behaviours. Participants were 112 boys and their parents. The data were analysed using multilevel modelling and moderated mediation analyses. Several associations were found between parental personality and parenting dimensions. Additionally, several parenting dimensions were associated with children's externalising behaviours. Emotional stability was the only parental personality trait that was related to children's externalising behaviours. The effect of maternal emotional stability on children's aggressive behaviours appeared to be mediated by maternal support. For fathers, there appeared to be a direct effect of emotional stability on children's aggressive behaviours. In addition, for both mothers and fathers, emotional stability was directly related to children's attention problems. Copyright © 2007 John Wiley & Sons, Ltd.     

Inconsistency of mothers' feedback and toddlers' misbehavior and negative affect

The general hypothesis that mothers' inconsistent discipline can cause children to misbehave was examined. Mothers, who were otherwise engaged in a telephone conversation, were instructed to respond to toddlers' inappropriate demands for attention with either consistent reprimands or with one of a variety of inconsistent strategies. Reprimanding half of the child's demands and providing positive attention to the rest of the demands resulted in high rates of both demands for mothers' attention and children's negative affect. Reprimanding half the children's demands and ignoring the other demands did not have deleterious effects nor did reprimanding and attending to the same demand half of the time and ignoring the other demands. Thus, clear, positive feedback for inappropriate demands is a type of inconsistent discipline that can cause normal toddlers to become terrible twos.This paper was based on the doctoral dissertation of the first author. We thank Zvi Strassberg for his constructive editorial feedback.     

Infants' joint attention skills predict toddlers' emerging mental state language

To assess predictive relations between joint attention skills, intention understanding, and mental state vocabulary, 88 children were tested with measures of comprehension of gaze and referential pointing, as well as the production of declarative gestures and the comprehension and production of imperative gestures, at the ages of 7-18 months. Infants' intention-based imitation skills were assessed at 12, 15, and 18 months. At the ages of 24 and 36 months, toddlers' internal state lexicon was evaluated by parents with a German adaptation of the Mental State Language Questionnaire (Olineck & Poulin-Dubois, 2005). Regression analyses revealed that 9-months-olds' comprehension of referential pointing contributed significantly to the prediction of intention-based imitation skills at 15 months, as well as to children's volition and cognition vocabularies at 24 and 36 months, respectively. Moreover, 12-month-olds' comprehension of an imperative motive was shown to selectively predict toddlers' use of volition terms at 24 months. Overall, these results provide empirical evidence for both general and specific developmental relations between preverbal communication skills and mental state language, thus implying developmental continuity within the social domain in the first 3 years of life.     

Infants' persistence and mothers' teaching as predictors of toddlers' cognitive development

This study examined the relative contributions of infants' persistence and mothers' teaching at 6 and 14 months to infants' cognitive development at 14 months in a sample of 65 low-income mother-infant dyads. Infants' persistence was assessed from a videotaped persistence task at 6 months and from the Behavior Record Scale of the Bayley Scales of Infant Development, 2nd ed. (BSID II) at 14 months. Mothers' teaching was assessed from a videotaped teaching interaction at 6 and 14 months using the Nursing Child Assessment Satellite Training (NCAST) teaching scale. Cognitive development at 14 months was based on the Mental Scale, BSID II. Infants' persistence at both ages and mothers' teaching at 6 months each explained unique variance in infants' cognitive status at 14 months. Persistence appears to be a stable quality that can be measured early on, and both infants' early persistence and mothers' teaching are direct pathways to cognitive status at the start of the second year.     

Mother, child, and situational correlates of toddlers' social competence

Mother, child, and situational correlates of toddlers' social competence in the second year were investigated in a sample of 24 children (11 girls, 13 boys). At 12 months, children's temperament (perceived difficulty) was assessed by questionnaire. Between 14 and 17 months, the children's everyday interaction experiences (maternal responsiveness and involvement) were observed at home. At 24 months, the children's social competence (responsiveness, use of social resources) and the quality of maternal behavior (responsiveness, availability) were assessed in a laboratory play room. The children's social competence was positively related to the contemporary (24 months) as well as the preceding (during the second year) maternal behavior. High-quality maternal behavior during the second year was associated with the child's low perceived difficulty at 12 months. Relationships between child and mother behavior particularly occurred in situations providing some challenge to the child.     

Personalized interactive characters for toddlers' learning of seriation from a video presentation

Children's media is rooted in relationships with onscreen characters. In this study, 18-month-old toddlers were initially exposed to one of two unfamiliar interactive media characters for 3 months. Conditions varied whether the character was personalized to them or not. At age 21 months, toddlers were tested on a seriation task that was presented onscreen by the character and compared to the performance of a 21-month-old control group who did not view a video demonstration (total N = 48). Toddlers learned significantly more from the personalized character, but not from the non-personalized character, when compared to the control group. Children in the personalized condition also increased in parasocial, nurturing behaviors directed at the character during play sessions, and these scores were linked to better seriation performance. The results suggest an important role for social relationships with interactive characters to teach early seriation skills.     

The longitudinal relations between parenting and toddlers' attention problems and aggressive behaviors

The aim of the present study was to examine the normative developmental trajectories of toddlers’ externalizing behaviors and several maternal and paternal parenting dimensions. Latent growth models were used to determine intraindividual changes and interindividual differences in these changes. One hundred and eight boys were followed from 17 months of age to 35 months of age. A significant linear decrease in attention problems and a significant linear increase in aggressive behaviors were found. Additionally, multivariate models were tested that related the developmental trajectories of externalizing behaviors to the trajectories of the parenting dimensions. The results showed meaningful contemporary relations and relations between over-time trajectories of parenting dimensions and children's externalizing behaviors.     

The effects of antecedent interventions and extinction on toddlers' compliance during transitions

We compared the effects of two antecedent strategies commonly used in early childhood settings to increase compliance during activity transitions: a warning condition, in which children were informed of the transition 2 min before it began, and a condition in which children were allowed access to a toy during the transition. Both antecedent interventions were ineffective when implemented alone; however, when these strategies were combined with extinction, improvements in compliance were observed for all children.     

Effects of maternal distraction and reprimands on toddlers' transgressions and negative affect

Misbehaviors occur at a high rate during the toddler years, and parents use a variety of methods to control these behaviors. The present investigation compared the effectiveness of two commonly used strategies, distraction and reprimands. Twenty mothers and their 17- to 39-month-old children were observed in a laboratory setting in which mothers used either distraction then reprimands or reprimands followed by distraction in response to their children's transgressions. When reprimands were used as the initial strategy, they were significantly more effective than distraction in controlling children's transgressions. Distraction was effective in maintaining low rates of transgression when preceded by a period of reprimands. However, when reprimands were instituted following a period of distraction, children's rates of negative affect increased significantly. Implications for the etiology and management of child behavior problems are discussed.     

The interactive effects of temperament and maternal parenting on toddlers' externalizing behaviours

The present study aimed to determine the potential moderating effects of temperamental traits on the relation between parenting and toddlers' externalizing behaviours. For that purpose, this study examined the interplay between temperament and maternal parenting behaviours in predicting the level as well as the development of toddlers' externalizing behaviours. Participants were 115 boys (wave 1, M=16.9 months; wave 2, M=23.2 months) and their mothers, who were observed in a 13‐min structured play session at home. With regard to the prediction of the level of externalizing behaviours at wave 1, main effects were found for children's temperamental characteristics. In addition, maternal negative control interacted significantly with children's inhibitory control in predicting this level of externalizing behaviours. The findings with regard to the development of externalizing behaviours showed that the effects of maternal negative control and lack of maternal sensitivity were stronger for toddlers with a difficult temperament: maternal negative control and lack of maternal sensitivity were related to an increase in externalizing behaviours for temperamentally difficult children only. These results offer support for the goodness‐of‐fit hypothesis, stressing the idea that the effects of temperament and the social environment depend to a large extent on their interplay. Copyright © 2007 John Wiley & Sons, Ltd.     

Pedagogical cues encourage toddlers' transmission of recently demonstrated functions to unfamiliar adults

Young children use pedagogical cues as a signal that others' actions are social or cultural conventions. Here we show that children selectively transmit (enact in a new social situation) causal functions demonstrated pedagogically, even when they have learned and can produce alternative functions as well. Two‐year‐olds saw two novel toys, each with two functions. One experimenter demonstrated one function using pedagogical cues (eye contact and child‐directed speech) and a second experimenter demonstrated the alternative function using intentional actions towards the object, but without pedagogical cues. Children imitated both functions at equal rates initially, indicating equal causal learning from both types of demonstration. However, they were significantly more likely to enact the pedagogical function for a new adult not present during the initial demonstrations. These results indicate that pedagogical cues influence children's transmission of information, perhaps playing a role in the dissemination of cultural conventions from a young age.     

Child and family correlates of toddlers' emotional and behavioral responses to a mishap

This study evaluated the unique and joint contributions of internal state language, externalizing behavior, and maternal talk about emotions to the prediction of toddlers' empathy‐related responsiveness. The empathy‐based guilt reactions of 47 toddlers (27 boys) were observed in response to distress that they thought they had caused. In addition, mothers reported on the children's internal state language, externalizing behavior, and empathy‐based guilt. In a separate observation, the mothers discussed emotional expressions with their children, and the functional significance of their emotional discourse was considered. Results revealed that toddlers' internal state language ability was positively related to their attempts to comprehend another's affective state and to maternal reports of children's sympathy reactions. There was also an unexpected inverse relation between externalizing behavior and arousal level. In terms of the parent measures, maternal explanations of emotions were positively related to children's attempts to comprehend another's affective state, whereas mothers' directives for children to label emotions were positively related to children's expressed emotional concern for others. The implications of these findings for understanding empathy and guilt development in young children are discussed. ©2003 Michigan Association for Infant Mental Health.     

Relations of maternal socialization and toddlers' effortful control to children's adjustment and social competence

The authors examined the relations of maternal supportive parenting to effortful control and internalizing problems (i.e., separation distress, inhibition to novelty), externalizing problems, and social competence when toddlers were 18 months old (n = 256) and a year later (n = 230). Mothers completed the Coping With Toddlers' Negative Emotions Scale, and their sensitivity and warmth were observed. Toddlers' effortful control was measured with a delay task and adults' reports (Early Childhood Behavior Questionnaire). Toddlers' social functioning was assessed with the Infant/Toddler Social and Emotional Assessment. Within each age, children's regulation significantly mediated the relation between supportive parenting and low levels of externalizing problems and separation distress, and high social competence. When using stronger tests of mediation, controlling for stability over time, the authors found only partial evidence for mediation. The findings suggest these relations may be set at an early age.     

Activity rescheduling: reasoned or habitual?

Utility maximization is widely used to model individuals’ activity scheduling and rescheduling behavior. Utility maximization is based on the assumption that the modeled behavior is the result of a reasoned decision. An alternative to a planned behavior is habitual behavior, whose execution process has become automatic due to its repeated performance. Compared to activity scheduling, little is known about the activity rescheduling behavior. In this paper, we focus our attention on the rescheduling behavior. We step back and ask a basic question: is the activity rescheduling behavior reasoned or habitual? Our initial expectation is that rescheduling behavior is mostly habitual behavior due to its feature of repeated performance. We answer this question by conducting an experiment. Results from the experiment confirm our original null hypothesis that rescheduling behavior is mostly a habitual behavior.     

"Don't try this at home": toddlers' imitation of new skills from people on video

Imitation of people on educational television is a potential way for very young children to learn new skills. Although toddlers in previous studies exhibited a “video deficit” in learning, 24-month-olds in Study 1 successfully reproduced behaviors modeled by a person who was on video as well as they did those modeled by a person who was present in the room (even after a 24-h delay). Neither displaced filming context nor cuts between actions affected toddlers’ imitation from video. Shortening the demonstration in Study 2 affected imitation in the video condition but not in the live condition. In Study 3, 24-month-olds who viewed the original longer videos on their family TV screens (with which they had a viewing history) imitated significantly less than those who viewed the videos on the laboratory monitor. Imitation of a live modeler was the same across settings (home or lab). Implications for toddlers’ judgments of reliable information sources and for the design of educational television programs are discussed.     

Maternal self‐efficacy beliefs,competence in parenting,and toddlers' behavior and developmental status

This study was designed to examine parenting self‐efficacy beliefs as correlates of mothers' competence in parenting toddlers and as predictors of toddlers' behavior and development. Sixty‐eight predominantly middle‐class mother–toddler pairs participated in this study. Mothers completed questionnaires, toddlers were administered the Bayley Scales of Infant Development (BSID‐II), and each dyad participated in the Crowell Procedure, which is designed to observe parent and toddler behaviors in a semistructured laboratory context. Although domain‐general and domain‐specific parenting self‐efficacy beliefs were not associated with parenting competence, domain‐specific beliefs were significantly related to toddlers' scores on the Mental Scale of the BSID‐II and several behaviors observed during the Crowell Procedure (Affection Towards Mother, Avoidance of Mother, Compliance, Enthusiasm, and Negativity). Implications of the findings are discussed. ©2003 Michigan Association for Infant Mental Health.