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• W154954078 abstract "The syndrome of apathy, defined as a reduction in goal-directed behavior (GDB), has profound consequences for morbidity and mortality in the patient and for family-caregiver burden. Apathy is one of the primary neuropsychiatric syndromes associated with the disruption of the frontal-striatal system, but the behavioral and biological mechanisms underlying apathy are not well understood. Apathy is especially prevalent in behavioral variant frontotemporal degeneration (bvFTD). In a sample of 20 apathetic adults with bvFTD and 17 normal controls (NC), impairments in three components of GDB--initiation, planning and motivation-were examined using a novel computerized reaction time test. Employing structural neuroimaging techniques, I then examined the neural basis of GDB in these apathetic bvFTD participants. I found evidence that apathy is associated with an impairment in any of the three GDB components. Initiation, planning, and motivation each map onto three distinct brain regions in the frontal lobe that work together in a large-scale neural network. Furthermore, I was able to identify participants with specific subtypes of apathy, depending on the impaired GDB mechanism. I developed and submitted a proposal for continued study of the phenomenon; the proposal was awarded. The long-term potential impact of this beginning program of research is profound for patients with neurodegenerative disease, their caregivers, and families. Current treatment of apathy has been hindered due to poor understanding of the mechanisms underlying this condition. This work will lead to a better understanding of these mechanisms and structures fundamental to the behavior, and, with this knowledge, tailored interventions can be designed and implemented by professional and lay caregivers. Thus, a more precise characterization of apathy will allow providers to implement the most appropriate therapy for a given patient. Degree Type Dissertation Degree Name Doctor of Philosophy (PhD) Graduate Group Nursing First Advisor Lois K. Evans" @default.
• W154954078 created "2016-06-24" @default.
• W154954078 creator A5060433552 @default.
• W154954078 date "2014-01-01" @default.
• W154954078 modified "2023-09-24" @default.
• W154954078 title "The Cognitive and Neural Basis for Apathy in Frontotemporal Degeneration" @default.
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