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Full-Text Articles in Clinical Psychology
Physiological Activation As A Mediator In The Relationship Between Perseverative Cognition And Somatic Symptoms, Karly M. Murphy
Physiological Activation As A Mediator In The Relationship Between Perseverative Cognition And Somatic Symptoms, Karly M. Murphy
Clinical Psychology Dissertations
Somatic symptoms are a significant medical and mental health concern that affects healthy adults and places a significant burden on healthcare systems. The perseverative cognition hypothesis posits that perseverative cognition results in prolonged physiological activation that may be interpreted as somatic symptoms. The purpose of this study was to further examine this hypothesis in a sample of young adults. First, I hypothesized that perseverative cognition would prospectively predict somatic symptoms after controlling for anxiety and depression. Second, I hypothesized that parasympathetic nervous system functioning, measured as respiratory sinus arrhythmia (RSA) and sympathetic nervous system functioning, measured as electrodermal responding (EDR) …
Examining The Interaction Between Stress Exposure And Stress Reactivity As Predictors Of Reward Sensitivity And Anhedonia Symptoms, Joshua Ahles
Clinical Psychology Dissertations
There is a well-documented relationship between stress and depression, although only recently has the field begun to articulate clear models regarding how stress exerts this effect. One prominent model highlights the disruptive impact of stress on reward processing, which relates to anhedonia – a cardinal symptom of depression. Vulnerability-stress models also play an important role in depression research and hold that individual differences in responses to stress may exacerbate the relationship between stress and depression. Pre-ejection period (PEP) reactivity to reward has been posited as an index of reward sensitivity and approach motivation and has been increasingly linked to depression. …