Doctor of Philosophy, The Ohio State University, 2020, Psychology
Lesbian, gay, and bisexual (LGB) individuals experience disproportionately high rates of mental illness relative to heterosexuals (Gilman et al., 2001). Minority stress theory has linked this phenomenon with the numerous sexual orientation-specific stressors that LGB individuals experience (e.g., sexual orientation disclosure; Meyer, 2003). However, no studies to date have examined how these factors may contribute to psychopathology development in a sample of high-risk individuals. Moreover, few studies have investigated how trajectories of illness differ between sexual minority and heterosexual youth, and whether emotional processes affect symptom progression differently in each group. Thus, the objective of this investigation was to understand minority stress and affective processes in a high-risk sample of youth. I used data from a longitudinal study of 685 youth (aged 6-12 years at baseline) who presented to an outpatient psychiatric clinic for mood symptoms. Participants and their parents completed psychopathology assessments over eight years, and a subset of the broader sample were re-contacted to complete another assessment for the purposes of this dissertation (n = 34). Across two studies, I examined the relationship between sexual orientation, psychopathology (diagnoses, symptoms), and affective processes (emotion regulation, emotional context sensitivity). I found support for my prediction that sexual minorities would exhibit more psychopathology than heterosexuals, especially on measures of internalizing psychopathology (e.g., anxiety, depression). Moreover, this study showed for the first time that sexual minority youth diverge from their heterosexual peers with regard to anxiety and mood symptoms as early as 8.8 years of age, and that these divergence points differ depending on the type of psychopathology (i.e., mood earlier than anxiety) and informant (i.e., parent reports show divergence later than child reports). With regard to minority stress, I fou (open full item for complete abstract)
Committee: Mary Fristad Ph.D. (Advisor); Michael Vasey Ph.D. (Committee Member); Daniel Strunk Ph.D. (Committee Member); John Pachankis Ph.D. (Committee Member)
Subjects: Behavioral Sciences; Clinical Psychology; Mental Health; Psychology