The purpose of this NIMH Mentored Patient-Oriented Research Career Development (K-23) Award application is to support my long-term career objective of integrating innovative neuroimaging techniques and mechanisms of emotion regulation to understand the neurodevelopment of Bipolar Disorder (BD). My previous training is in the phenomenology and Magnetic Resonance Imaging (MRI) morphometric analyses of children at familial risk for developing BD. One limitation of previous neuroimaging studies in bipolar offspring is the inadequate assessment of the potential underlying mechanisms of emotion regulation in this vulnerable cohort, independent of confounds associated with illness onset, such as co-occurring psychiatric conditions, medication exposure, and substance use. Therefore, to achieve my career goal of maximizing the application of in vivo neuroimaging techniques to at-risk clinical populations, I propose to gain expertise integrating pediatric investigations of emotion regulation and dysregulation, functional (fMRI), magnetic resonance spectroscopy (MRS), statistical analyses, and the ethical conduct of research by participating in course work, didactic readings, mentoring, and experiential learning activities that complement the proposed research activities. BD is a prevalent, life-long, progressive disease that typically begins in adolescence or early adulthood. A cardinal symptom of BD is emotion dysregulation. Brain and cerebellar regions, including the prefrontal cortex, ventral striatum, amygdala, hippocampus, and cerebellar vermis have been shown to modulate emotional processes in children and adolescents with, and at familial risk for, BD. My short-term goal is to apply fMRI and MRS, in conjunction with reward and information-processing paradigms used in affective neuroscience, to elucidate the functional and neurochemical bases for emotion regulation in preadolescent children at familial risk for developing BD. Data obtained in this project will inform future longitudinal studies to facilitate the advancement of our understanding of risk and protective factors that are involved in the development of this illness. The proposed integrated research and training programs, together with the strong research environment of Stanford University, will foster my development into an independent investigator in the field of the neurodevelopment of BD.
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