Physiology Commons^™

Sit Less, Move More: A National Study Of Physical-Activity Behavior And Cancer, Stella O. Nwogugu

Dissertations, Theses, and Capstone Projects

Background: Physical activity is associated with lower risks of cancer, the second leading cause of death among Americans. Yet, sedentary behavior is the prevailing lifestyle for about 80% of American adults. Additionally, cancer survivors remain significantly inactive, even though physical activity has been shown to decrease risk of cancer and cancer recurrence, improve tolerance of cancer therapy, and reduce mortality. This research explores the relative impact of personal agency, social support, and key demographic variables on physical-activity behavior for a national sample of adults as well as how these relationships differ for cancer survivors and their counterparts.

Methods: Using the …

Effects Of Chronic Stress On Safety Processing And Physiology In The Medial Prefrontal-Amygdala-Basal Forebrain Circuit, Itamar S. Grunfeld

Dissertations, Theses, and Capstone Projects

Chronic stress increases generalization of fear to non-threatening cues, a key symptom in numerous psychiatric mood disorders. However, the mechanisms through which stress impacts safety learning remain poorly understood. To probe the relationship between stress and safety learning, this dissertation employed multiple behaviors, in conjunction with in-vivo multisite physiology during explicit safety and fear discrimination learning. In Chapter 1, I outline the role of chronic stress in driving neurological adaptations that result in generalized fear and highlight how this occurs because of impaired safety cue encoding. In Chapter 2, I show that chronic stress in the form of social defeat …

Reducing Fear Overgeneralization With Safety Learning: Attention Bias As A Moderator, Boyang Fan

Dissertations, Theses, and Capstone Projects

Anxiety disorders are the most prevalent mental health condition and affect one out of nine individuals around the world. Fear generalization is a neurocognitive mechanism thought to maintain and exacerbate anxiety, and thus is an important target of therapeutic interventions. Yet, intervention research and practice place relatively little emphasis on its importance. Given that a significant proportion of individuals do not respond to extant treatments of anxiety disorders, a strengthened focus on fear generalization may inform the development and personalization of new treatment approaches. Recent notions have linked fear generalization to failures in distinguishing between signals that predict the occurrence …

The Vibe, Sarah P. Douglass

Capstones

The Vibe is a long-form narrative about where tech is taking the female orgasm. The piece concludes that physiological research is a required next step when creating the climax of the future.

http://sarahpdouglass.com

Burnout And The Hypothalamic-Pituitary-Thyroid Axis: A Methodological Comment, Renzo Bianchi, Irvin Sam Schonfeld, Eric Laurent

Publications and Research

Because (a) burnout overlaps with depression and (b) depression has been associated with altered functioning of the hypothalamic-pituitary-thyroid axis changes in the activity of the HPT axis can be expected in burnout. Most probably, Guo et al.’s (2017) results are flawed by a severe form of the “healthy worker effect.”

Total Energy Expenditure In Captive Sapajus Apella, Wren Edwards

Theses and Dissertations

Primates expend approximately 50% less energy (kcal/day) for their body size than other eutherians. Using the doubly labeled water method, I investigated total energy expenditure (TEE) and physical activity in Sapajus apella. S. apella TEE was similar (p=0.67) to other platyrrhines, but 54% lower than expected for body mass.

Psychological Contracts In Information Exchanges, Stanislav Mamonov

Dissertations, Theses, and Capstone Projects

Information assets continue to grow in importance of contribution to economic activity. Many emergent businesses, including Google, Amazon and Facebook, leverage crowd-sourced information assets as essential pillars supporting their business models. The appropriation of rights to information assets is commonly done through legal contracts. In practice this approach often fails to prevent conflicts between the information contributors and the companies claiming information rights. In research presented here I attempt to understand when and why the conflicts arise. I draw on psychological contract theory and I develop the framework of psychological contracts in information exchanges. I propose that intellectual property and …