Child development

In this dissertation three studies were implemented to investigate the differences in distributive justice development between lower and middle class children. In Study 1, conducted on all white children in a rural Florida school, twenty-eight middle and twenty-eight lower class children from kindergarten and third grades were given the Distributive Justice Scale (DJS) and the vocabulary section of the Standford-Binet Intelligence Scale. The results of this study showed that regardless of grade level, the lower class lagged behind the middle class in distributive justice development. There were not significant differences found between the social classes in verbal ability. Since Study 1 was the first study to investigate this topic, it was thought necessary to replicate the findings in a different part of the country on a different population. Study 2 was conducted on all black children from an inner-city Midwestern school. Thirty-two middle and thirty-two lower class children from kindergarten and third grade were given the above measures. A new dimension was added to Study 2 in that a sociometric peer-rating scale was given to investigate the interactional pattern between the social classes. The distributive justice and verbal ability results replicated Study 1. The peer ratings showed that the lower class kindergarten children segregate themselves, while third grade children do not. The findings also showed that in both grade levels, the lower class children were chosen significantly more often for negative social characteristics. Study 3 was conducted in the same school as Study 1, the following school year, on different children. Study 3 was concerned with replicating the distributive justice results in a time-sequential research design. This study was also concerned with replicating the sociometric results of Study 2 in a different part of the country on a different population. In Study 3, twenty-eight middle and twenty-eight lower class children from kindergarten and third grade were administered the three previously mentioned instruments. The distributive justice and vocabulary results replicated Studies 1 and 2. The sociometric results showed that middle class and lower class children chose in the same way. Lower class children were consistently chosen for negative social characteristics, while middle class children were chosen for the positive social characteristics. A social reality and social dominance hypothesis are presented and discussed to explain this phenomenon. Implications for future research are presented and discussed.

This design thesis project explores the psychology, significance, and power of play. The value of play is supported through historical and cultural context. Research for the subject unfolds the relationship between play, productivity and the mastery of creative thinking. Examination of the engagement of play addresses its power to inspire in both design education and practice. It also touches upon crucial dynamics of physical, intellectual, social, and emotional development in the human life cycle of learning. As the facilitator of play in the context of three-dimensional space, I seek to elucidate the value of activating human behaviors that stimulate play such as curiosity, imagination, spontaneity, and personal expression. Serious fun is no game; play provides a meaningful strategy for solving serious design problems and developing mastery in the classroom and the practice of design.

Speech perception plays an important role in how infants begin to produce speech. This study aims to understand how changes in infant selective attention to various parts of talking faces guides their understanding of speech and subsequent production. In this study, we tracked infant (4-12 months of age) and adult gaze patterns to determine where on a face they attend, when hearing and seeing the face speak in either their native (English) or a non-native language (Spanish). We also tracked infant selective attention to moving-silent and silent-static faces, to determine if this would result in different patterns of attention. The findings suggest that there are two shifts in infant attention. The first shift occurs between four and eight months of age, with infants shifting their eyes to the mouth of the talking face. The second shift occurs around twelve months of age, when infants begin to return their gaze back to the eye region when hearing and seeing their native language, but continue to attend to the mouth region when hearing and seeing the non-native language. Overall, the results of this study suggest that changes in selective attention to talking faces guides the development of speech production and is dependent on early language experience.

One of the most fundamental functions of human cognition is to parse an otherwise chaotic world into different kinds of things. The ability to learn what objects are and how to respond to them appropriately is essential for daily living. The literature has presented contrasting evidence about the role of perpetual features such as artifact appearance versus causal or inductive reasoning in chldren's category distinctions (e.g., function). The present project used a child-initiated inquiry paradigm to investigate how children conceptualize artifacts, specifically how they prioritize different types of information that typify not only novel but also familiar objects. Results underscore a hybrid model in which perceptual features and deeper properties act synergistically to inform children's artifact conceptualization. Function, however, appears to be the driving force of this relationship.

The present study examined developmental changes in the establishment of mother-infant tactile and visual communication within depressed and non-depressed breast- and bottlefeeding dyads. 113 (30 depressed, 83 non-depressed mothers) mother-infant dyads participated at the 1-month visit and 87 dyads returned at the 3-month lab visit. Maternal mood status was assessed. EEG recordings were taken from the infants at mid-frontal, central, parietal and occipital sites. Mothers and their infants were videotaped during a 5- minute feeding. The feeding session was coded for touch and gaze, utilizing coding scales similar to those of Polan and Ward (1994) and Moszkowski and Stack (2007). Infant self-touch significantly predicted infant EEG asymmetry scores. Non-depressed and depressed breast-feeding mothers displayed more affectionate touch while depressed bottle-feeding mothers displayed an absence of touch.

Growth is a property that is unique to living things. Studies demonstrate that even preschool children use growth to determine whether objects are alive. However, little identifies explanations that children use to attribute growth. The goal of the present study was to investigate how people reason about growth. We hypothesized that older children would outperform younger children in understanding that growth is inevitable for living things, while adults would consistently perform at ceiling levels. Our hypothesis was partially supported. Although adults consistently outperformed children, older children rarely outperformed younger children. Still, both younger and older children performed above chance in attributing growth. Moreover, all participants were more likely to use biological explanations to explain growth. Taken together, this research qualifies the early hypotheses of Piaget (1929) and Carey (1985) that children lack a well developed biological domain before age nine, but suggests that a biological domain, though less developed, is present. Based on these findings, implications for more efficient approaches to science education are discussed.

Empathy has been shown to have many positive outcomes in individuals at every stage throughout life. It promotes sociability, helping behaviors, and can protect against the development of psychopathology. Evolutionary theorists have hypothesized that humans have a biological predisposition for empathic response. Temperament, as well as parental interaction with children, account for individual differences in empathic response levels. Much research has also looked at maternal depression as a key factor in children's negative emotional responding. We used EEG to measure individual differences in children's empathic emotional responding, as well as parental interaction and its impact on empathy and prosocial development. Results show that children rated as being more sociable are more likely to show outward expressions of empathy. Also, those with greater right frontal asymmetry are more likely to assist others in a prosocial manner.

Jealousy