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Obesity And Outcomes Of Bariatric Surgery: A Focus On Patients With Postoperative Substance Use Disorders, Melissa Pulcini Aug 2012

Obesity And Outcomes Of Bariatric Surgery: A Focus On Patients With Postoperative Substance Use Disorders, Melissa Pulcini

Master's Theses and Doctoral Dissertations

Recent evidence suggesting post-Roux-en-Y gastric bypass (RYGB) surgery patients are at an increased risk for developing substance use disorders (SUDs) has brought to light the importance of understanding how the postoperative development of a SUD may affect weight loss and psychosocial outcomes. The present investigation used a quasi- experimental, non- equivalent, matched pair between subjects group design to compare these outcomes in post-RYGB patients in inpatient treatment for SUDs with post-RYGB patients who reported no significant post-surgical substance-related problems. Participants were matched on sex, age, and time since surgery. Average weight losses of the two groups were not significantly different, …


Examining Social Anxiety And Depression Among Excessive Online Gamers, Nathan Sharer Jan 2012

Examining Social Anxiety And Depression Among Excessive Online Gamers, Nathan Sharer

Theses, Dissertations and Capstones

The main purpose of this study was to examine the correlations between social anxiety, depression, and other psychological factors among online gamers in order to better understand the differences between excessive gamers (whose habits interfere with relationship, occupational, social, or health issues) and enthusiastic gamers (who spend much of their free time playing games but do not report any significant functional impairment as a result). A literature review revealed diverse conceptualizations of excessive gaming as well as differing opinions of what classifies gaming to be excessive/addicting/problematic, suggesting a need to more specifically analyze gaming habits in terms of coexisting pathology …


The Effects Of Extended Access To Methamphetamine Self-Administration On Dopaminergic Markers In The Striatum, Joe Luevano Jan 2012

The Effects Of Extended Access To Methamphetamine Self-Administration On Dopaminergic Markers In The Striatum, Joe Luevano

Open Access Theses & Dissertations

Methamphetamine (METH) abuse is a persistent problem in the U.S. and abroad. Escalation of METH use among independent users occurs for a variety of physiological and psychological reasons. Methamphetamine dependence may be attributed to the rewarding effect of this drug via the dopaminergic systems of the central nervous system (CNS). The presence of METH in the CNS increases synaptic release of dopamine. This increase in dopaminergic neurotransmission is thought to be directly attributed to the rewarding effects of METH. Following METH use, compensatory changes have been found to occur in the dopaminergic system during various periods of abstinence. It is …