Author

Demi Brown

Date of Award

2015

Document Type

Thesis

Degree Name

Bachelors

Department

Natural Sciences

First Advisor

Beulig, Alfred

Keywords

Major Depressive Disorder, Biology, Dysfunction, Chemistry

Area of Concentration

Natural Sciences

Abstract

Major depressive disorder is often characterized by disrupted cognitive control, a psychological symptom which can be traced to metabolic dysfunction in specific brain regions. Such biological disturbances come in the form of increased and decreased metabolism in regions which exhibit anticorrelated activity. These alterations are often seen in conjunction with regional volumetric reductions, which may be a result of neuronal and glial degradation. This thesis provides a review of the current research in each of these areas, offering a glimpse at the patterns of metabolic and volumetric dysfunction seen in major depressive disorder, as well as an array of probable causes of this dysfunction. Increasingly, major depressive disorder is seen as a syndrome, encompassing a variety of symptoms and causative pathways, and this review notes these differences among subject groups.

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