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Social and Behavioral Sciences Commons™
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Full-Text Articles in Social and Behavioral Sciences
Impact Of Heart-Rate Variability Biofeedback On Major Depression Disorder In Resting-State Fmri, Hiu Wai Caldwell
Impact Of Heart-Rate Variability Biofeedback On Major Depression Disorder In Resting-State Fmri, Hiu Wai Caldwell
Theses and Dissertations
Major depressive disorder (MDD) is one of the most common psychiatric illnesses and causes significant disturbances in daily functioning. Research on heart-rate variability (HRV) biofeedback training suggests that HRV is an efficacious adjunct to psychotherapy in reducing depressive symptoms. The purpose of this study was to examine neurological changes in depressed individuals who were randomized to either a psychotherapy plus HRV biofeedback training or to a treatment as usual group. A control group with no history of depression was also studied. We collected psychological, physiological, and imaging data from 30 participants (10 in an experimental group, 10 in a treatment …
Exploring The Effects Of Depression And Physical Activity On Pattern Separation Performance, Michelle I. Nash
Exploring The Effects Of Depression And Physical Activity On Pattern Separation Performance, Michelle I. Nash
Theses and Dissertations
Cognitive performance declines in depression and increases with physical activity. These changes may in part be due to changes in the level of neurogenesis (the generation and survival of adult-born neurons), which decreases with depression and increases with physical activity. Pattern separation (the formation of distinct neural representations of incoming information through orthogonalizing similar patterns of activation) has also been linked to neurogenesis. This project explores pattern separation within these two populations through three experiments.Experiment 1. Previous research has found impaired pattern separation among individuals with higher depression scores, but who have not been diagnosed with Major Depressive Disorder (MDD). …