Developmental Psychology Commons^™

Predicting Social Behavior By Sound & Surface Appearance In Infancy, Ashley Lyons

Masters Theses 1911 - February 2014

Our naïve theory of social behavior assumes that the positive and negative actions of others are caused by some underlying social disposition. Furthermore, adults automatically infer such traits in advance based upon whatever observable, even superficial, properties are available (e.g., how someone looks or sounds). The goal of the current study is to explore the developmental origins of this bias. We tested whether 12-month-old infants automatically infer a character’s social disposition (i.e., whether they ‘help’ or ‘hinder’ another character’s goal) based upon the superficial properties they display. Infants were habituated to two characters that possessed surface properties that were rated …

Does Early Perceptual Experience Influence Later Perceptual And Neural Discrimination In Children?, Hillary R. Hadley

Masters Theses 1911 - February 2014

In infancy, the ability to tell the difference between two faces within a category (e.g., species, race) that is infrequently experienced declines from 6 to 9 months of age (Kelly et al., 2009, 2007; Pascalis et al., 2005; Pascalis, de Haan, & Nelson, 2002; Scott & Monesson, 2009). This decline in the ability to distinguish faces is known as "perceptual narrowing" and has recently been found to be absent when infants are given experience matching a face with an individual-level proper name between 6 to 9 months of age (Scott & Monesson, 2009). Additionally, individual-level experience between 6 and 9 …

Associations Of Childhood Family Adversity And Pubertal Timing With Depressive Symptomotology In Adulthood, Jeffrey P. Winer

Masters Theses 1911 - February 2014

To date, no prior research has examined the combined roles of childhood family adversity and pubertal timing in longitudinal pathways to depressive symptomatology in adulthood. The present study was conducted with 225 men and 225 women to explore the unique and combined roles of childhood family adversity and pubertal timing on depressive symptoms in a community sample of married adults. Results for both men and women indicated significant main effects of a cumulatively risky family environment on depressive symptoms, as well as main effects of families with higher levels of abuse and neglect, chaos and disorganization, and interpersonal family conflict. …

Working Memory Performance Across Development And Following Acute Exercise, Patrice L. Stering

Masters Theses 1911 - February 2014

This thesis investigates the developmental trajectory of visuo-spatial working memory as well as the potential influence of acute exercise on working memory performance. Individuals between the ages of 6 and 25 years were randomly assigned to a 30-minute bout of exercise on an elliptical trainer or to a no-exercise control condition. Participants then performed a computerized N-back task to assess working memory. Developmental results suggest that working memory ability continues to develop into early adulthood with the exact trajectory depending on the cognitive demand of the task being assessed. No difference in working memory performance was found between the exercise …

The Priming Effects Of Video Viewing On Preschoolers' Play Behavior, Heather J. Lavigne

Masters Theses 1911 - February 2014

This thesis investigates the relationship between educational television content and children‘s play behaviors immediately after viewing. Children ages 41-43 months of age were randomly assigned to view a television program with predominantly object-constructive or social dramatic content. All children participated in a period of video viewing, approximately 25 minutes in length, followed by a 30-minute play session. Each participant was subsequently administered a brief card sorting task to assess categorical knowledge of constructive and social activities. Each child‘s session was coded for looking at the television, toy choice, and play content (constructive or social-narrative). Video viewing condition and the interaction …

The Behavioral Effects Of Increased Physical Activity On Preschoolers At Risk For Attention Deficit Hyperactivity Disorder, Jasmin L. Roberts

Masters Theses 1911 - February 2014

Physical activity (PA) has many health benefits, both physical and psychological. PA has been linked to improved cognitive functioning, superior overall health, and enhanced emotional well-being in populations ranging from school-age children to older adults. There has been less research, however, examining the benefits of PA in atypical preschool populations.

The present study examined the efficacy of a PA intervention in preschool-aged children at risk for attention deficit hyperactivity disorder (ADHD). ADHD symptomatology, response inhibition, and physical activity were measured at three time points over a 6-month period. Results provide support for the efficacy of PA as an alleviative tool …

The Influence Of Television Exposure On Infants' Toy Play, Katherine G. Hanson

Masters Theses 1911 - February 2014

The association between television exposure and infants’ toy play was examined. Specifically, differences in the amount of program content and coviewing in the home were expected to predict different patterns of play when children were away from television. This thesis also sought to extend Pempek’s (2007) findings indicating that the more parents coviewed certain baby videos (i.e., Sesame Beginnings) in the home with their children, the more likely these parents actively engaged with their children in the laboratory. Consequently, the current thesis examined whether or not this active engagement resulted in something meaningful for children’s play behaviors. Parents of infants …

The Other-Race Effect And Its Influences On The Development Of Emotion Processing, Alexandra Monesson

Masters Theses 1911 - February 2014

The theory of perceptual narrowing posits that the ability to make perceptual discriminations is very broad early in development and subsequently becomes more specific with perceptual experience (Scott, Pascalis, & Nelson, 2007). This leads to the formation of biases (Pascalis et al., 2002; 2005; Kelly et al., 2007), including the other-race effect (ORE). Behavioral and electrophysiological measures are used to show that by 9-months-of-age, infants exhibit a decline in ability to distinguish between two faces from another race compared to two faces from within their own race. Significant differences in the P400 component revealed a dampening of response to other-race …