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Full-Text Articles in Medicine and Health Sciences

Linking Brain Electrical Signals Elicited By Current Outcomes With Future Risk Decision-Making, Dandan Zhang, Ruolei Gu, Lucas S. Broster, Yang Jiang, Wenbo Luo, Jian Zhang, Yue-Jia Luo Mar 2014

Linking Brain Electrical Signals Elicited By Current Outcomes With Future Risk Decision-Making, Dandan Zhang, Ruolei Gu, Lucas S. Broster, Yang Jiang, Wenbo Luo, Jian Zhang, Yue-Jia Luo

Behavioral Science Faculty Publications

The experience of current outcomes influences future decisions in various ways. The neural mechanism of this phenomenon may help to clarify the determinants of decision-making. In this study, thirty-nine young adults finished a risky gambling task by choosing between a high- and a low-risk option in each trial during electroencephalographic data collection. We found that risk-taking strategies significantly modulated mean amplitudes of the event-related potential (ERP) component P3, particularly at the central scalp. The event-related spectral perturbation and the inter-trial coherence measurements of the independent component analysis (ICA) data indicated that the “stay” vs. “switch” electrophysiological difference associated with subsequent …


Children, Adolescents And Firesetting, Joav Merrick, Carrie Howell Bowling, Hatim A. Omar Jan 2014

Children, Adolescents And Firesetting, Joav Merrick, Carrie Howell Bowling, Hatim A. Omar

Pediatrics Faculty Publications

The research of firesetting has been conducted in different ways and lacks a coherent, consistent and comprehensive set of empirical findings. A recent review concluded that despite a number of risk factors being repeatedly identified, an understanding of the etiology behind firesetting behavior and potential developmental trajectories remains theoretically rather than empirically based. Existing theories do not take sufficient account of the complexities of firesetting behavior and there is not yet a typology and accompanying assessment that has undergone thorough empirical testing and is of significant clinical utility. Due to the relationship between firesetting and antisocial behavior there is a …


Self-Reported Juvenile Firesetting, Carrie Howell Bowling, Hatim A. Omar Jan 2014

Self-Reported Juvenile Firesetting, Carrie Howell Bowling, Hatim A. Omar

Pediatrics Faculty Publications

In this chapter we address gaps in existing research by examining the relationship between academic performance and attention problems with juvenile firesetting. Two datasets from the Achenbach System for Empirically Based Assessment (ASEBA) were used. The Factor Analysis Dataset (N = 975) was utilized and results indicated that adolescents who report lower academic performance are more likely to set fires. Additionally, adolescents who report a poor attitude toward school are even more likely to set fires. Logistic regressions were run to determine if attention problems predicted firesetting and the findings indicated that attention problems are predictive of self-reported firesetting. The …


Adolescent Bereavement, Leslie Robin, Hatim A. Omar Jan 2014

Adolescent Bereavement, Leslie Robin, Hatim A. Omar

Pediatrics Faculty Publications

Depending on cognitive and emotional development, an adolescent may grieve very differently than a child or an adult. While mature enough to understand death's irreversibility, adolescents may not fully comprehend the enduring consequences of a loved one's death. As the desire to separate from their families and forge new intimate relationships with peers assumes increasing priority, adolescents can seem egocentric in their reaction to death, a response which often frustrates and perplexes adults. Because volatile behavior is characteristic of adolescence, health providers struggle to differentiate between normal and complicated bereavement. Here we review the commonly-accepted characteristics of normal and complicated …


Eating Disorder Onset In Young Girls: A Longitudinal Trajectory Analysis, Carolyn M. Pearson Jan 2014

Eating Disorder Onset In Young Girls: A Longitudinal Trajectory Analysis, Carolyn M. Pearson

Theses and Dissertations--Psychology

To investigate whether there are different patterns of development for binge eating and purging behavior among pre-adolescent and early adolescent girls, I conducted trajectory analyses of those behaviors in 938 girls across eight waves of data from the spring of 5th grade (the last year of elementary school) through the spring of 9th grade (the first year of high school). Analyses revealed four separate developmental trajectories for binge eating behavior (labeled none, increasing, decreasing, and high steady) and three separate developmental trajectories for purging behavior (labeled none, dabble, and increasing). Fifth grade scores on risk factors that were …