Purpose: Irritability, conceptualized as a lowered threshold for frustration in response to blocked goal attainment (i.e., frustrative non-reward), is a common, detrimental symptom in adolescence that predicts continued impairment into adulthood. Yet, the neural mechanisms of ir…
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Background: Concussions are a growing public health concern, and emerging long-term health risks may negatively impact an individual’s quality of life. With concussions, there can be a multitude of signs and symptoms, but frequent long-term sequelae of concussions including mood…
In the United States, the majority of the population is not regularly physically active in accordance with established national guidelines. Research has uncovered several variables that show significant and consistent relations with physical activity, including some that refer p…
The primary focus of this quantitative, quasi-experimental, repeated-measures, within-subject, counterbalanced research study was on the neurophysiology of religious prayer. Understanding both the neurophysiology and brain regions associated with religious prayer remains an impo…
Alcohol is a commonly used substance worldwide. Regardless of the intended use alcohol can potentially engender negative outcomes. These outcomes are commonly experienced when alcohol consumption is discontinued (hangover/withdrawal) or relate to the behavior of consumption (cra…
Research indicates that 80% of the population will experience a traumatic event in their lifetime, and yet less than 20% will develop a trauma-related diagnosis subsequent to the event (Breslau et al., 2014; Kilpatrick et al., 2013). In the resiliency literature, post-trauma res…
Rising prevalence of childhood psychopathology mandate investigation into the antecedents of symptom onset. Growing evidence shows prenatal maternal stress experienced in utero is a strong contributor to offspring neurodevelopmental deficits, including emotion dysregulation, a c…
This dissertation explores the relationships between Self-Objectification (SO) and Muscle Dysmorphia (MD) among female exercise groups: bodybuilders and recreational lifters. The research questions are informed by objectification theory (Fredrickson & Roberts, 1997), the history…
Objective: Dysregulation in physiological responses to stress may provide a mechanism through which childhood socioeconomic adversity negatively impacts health. While the evidence linking early life SES to dysregulated physiological reactivity is unclear, exposure to childhood t…
The prevalence of alcohol use disorder (AUD), a chronic, heterogeneous disease characterized by an escalation from casual alcohol consumption to compulsive alcohol seeking and consumption accompanied by a persistent or recurring negative affective state, is a health crisis occur…
Background. Psychological factors, such as fear of reinjury and kinesiophobia, have been found to limit return to sport and knee function in the post anterior cruciate ligament reconstruction (ACLR) population (Ardern, Taylor, Feller, Whitehead, & Webster,2013). Current research…
Animal models in the past decade have shown that noise exposure may affect temporal envelope processing at supra-threshold levels while the absolute hearing threshold remains in the normal range. However, human studies have failed to consistently find such issue due to poor cont…
Refugees are known to suffer extensive psychological distress owing to the sociocultural and sociopolitical nature of their life experiences (Jamil, Hakim-Larson, Farrog, Kafaji, Duqum, & Jamil, 2002; Weine et al., 1998). While the presence of psychological distress in this popu…
Introduction: Autism spectrum disorders (ASD) are a set of complex neurodevelopmental disorders characterized by deficit in social interaction and communication as well as restricted, repetitive behaviours. The aetiology of ASD likely includes both genetic heritability and envir…
Mood disorders are common psychiatric illnesses that represent a major cause of disability and mortality worldwide. Bipolar disorder (BD) is an affective disorder that has been associated with an increased risk of a variety of medical conditions including cardiovascular disease,…
Purpose: Sport-related concussions have shown to have effects on self-efficacy, oculomotor performance, reaction time and an increased risk of lower extremity injury. Most studies have been conducted to test the effects of acute concussions in athletes and not on long-term effec…
Anorexia nervosa (AN) is a relatively uncommon, but highly lethal mental illness which often begins in adolescence, follows a chronic course, and is associated with significant morbidity, impact on functioning, and reduced quality of life. Although a variety of potential patholo…
Findings from childhood abuse and maltreatment research have revealed that trauma exposure puts children at a greater risk for an array of negative health consequences. Specifically, a history of childhood maltreatment is associated with physical conditions in adulthood such as …
Sports-related concussion (SRC) represents a major epidemiological concern in the adolescent and collegiate athlete populations, with conservative estimates of approximately four million SRCs occurring each year in the United States. While the majority of previous research has e…