Open Access. Powered by Scholars. Published by Universities.®
- Discipline
Articles 1 - 8 of 8
Full-Text Articles in Entire DC Network
House Finches, Carpodacus Mexicanus: Hormones, Stress, And Song Control Regions, Katherine Olivia Ganster
House Finches, Carpodacus Mexicanus: Hormones, Stress, And Song Control Regions, Katherine Olivia Ganster
Master's Theses
Song production in songbirds is controlled by parts of the brain known as the song control regions (SCRs). During spring, gonads increase in size, males sing to attract mates, and SCRs become larger. This neuroplasticity is controlled by the change in day length and increased plasma testosterone (T) levels. Plasma T can be reduced by stress through the production of corticosterone (CORT), through the production of beta-endorphin, or through direct effects on the testes via the nervous system. We determined the T, estradiol, and CORT hormonal profiles of wild House Finches by capturing and sampling blood from the finches every …
Negative Event Appraisals, Cognitive Processing, And Adjustment, Kristen E. Riley
Negative Event Appraisals, Cognitive Processing, And Adjustment, Kristen E. Riley
Master's Theses
Appraisals of stressful events are linked to their adjustment to those stressful events. Appraisals can include perceptions of an event as threatening, uncontrollable, controllable, central, or challenging (Peacock & Wong, 1990). Many studies have examined effects of these appraisals on adjustment and cognitive processing (Aldwin, 2007; Lazarus, 1993; Tan, Jensen, Thornby, & Anderson, 2005), and a few have suggested that cognitive processing mediates relationships between appraisals and adjustment (Peacock & Wong, 1996). We tested cognitive processing in mediation models between appraisals and adjustment, and compared to active coping, in the context of ongoing stressors. Active coping appears to be particularly …
Understanding The Relationship Between Perceived Levels Of Stress, Mindfulness, And Meditation Practices, Michael Gallagher
Understanding The Relationship Between Perceived Levels Of Stress, Mindfulness, And Meditation Practices, Michael Gallagher
Master's Theses
Mindfulness meditation has become increasing popular in the Western world the last few decades. Although the research in the area of mindfulness is just beginning, many studies report positive benefits to individuals who learn this type of meditation. This study compares the perceived stress levels of college students who report common characteristics of individuals who practice mindfulness meditation against college students who do not report those common characteristics of mindfulness. The student’s level of mindfulness was measured using the Five Facet Mindfulness Questionnaire while the Measurement of Stressful Life Events was used to determine the student’s perceived stress levels to …
Physiological Politics: Stress And Dominance Responses To Political News, Erin Strauts
Physiological Politics: Stress And Dominance Responses To Political News, Erin Strauts
Master's Theses
No abstract provided.
The Proteomic Response Of Sea Squirts (Genus Ciona Congeners) To Hyposalinity Stress, James S. Koman
The Proteomic Response Of Sea Squirts (Genus Ciona Congeners) To Hyposalinity Stress, James S. Koman
Master's Theses
The ascidian species Ciona savignyi and C. intestinalis are invasive species but show interspecific differences in their population response to hypo-saline stress associated with heavy winter-run off events that are predicted to become more frequent due to climate change. Despite an almost world-wide distribution, C. intestinalis seems to be more susceptible to hypo-saline stress than the geographically more limited C. savignyi. Given that the genomes of both species are fully sequenced, we were able to compare their proteomic response to both acute and chronic salinity to characterize the mechanisms that are responsible for setting tolerance limits to hyposaline conditions …
Gender Differences In Depressive Symptoms: The Interaction Of Cognitive Avoidance Coping And Specific Stressor Domains During Freshmen Adaptation To College, Daniel Dickson
Master's Theses
The first year of college can be a stressful experience that can lead to depressive symptoms in emerging adults. Due to the significant impairments that are associated with depressive symptoms across the lifespan, it is important to understand the elements of the first-year college experience that contribute to depressive affect. The goals of the current prospective study are to examine sex differences in the relationship between life stressors (i.e., social and achievement stressors) and cognitive avoidance coping in the development of depressive symptoms in first-year college students. The findings suggest that although cognitive avoidance is predictive of more depression, there …
Mood Management And Video-Game Engagement: The Importance Of User-Experience And Gender In Assessing The Psychological Effects Of Video-Game Play, Crystine Serrone
Mood Management And Video-Game Engagement: The Importance Of User-Experience And Gender In Assessing The Psychological Effects Of Video-Game Play, Crystine Serrone
Master's Theses
The overall purpose of this thesis was to investigate the psychological effects of video-game play. The two central goals were to (a) compare and contrast three classic media theories (Mood Management Theory, The Catharsis Hypothesis, and Excitation-Transfer Theory) as they apply to the effects of video-game play, and (b) investigate the importance of user-experience variables and gender in predicting psychological outcomes of play. In a two-group mixed experimental design, all participants underwent a frustration/stress mood-induction procedure before playing a violent or nonviolent video-game. Questionnaires were administered both pre- and post-play to assess affect, arousal, and dominance as well as the …
Effects Of Stress And Co-Rumination On Creativity And Performance, Subha Govindarajan
Effects Of Stress And Co-Rumination On Creativity And Performance, Subha Govindarajan
Master's Theses
Stress is shown to have a negative impact on individuals, organizations, and society at large. Though research in industrial/organizational (I/O) psychology has examined the relationship between stress and various organizational outcomes, the effects of stress on creativity and performance have seldom been investigated. Furthermore, despite the well-reported buffering effects of social support on the negative outcomes of stress, the potential effects of one type of social support, co-rumination, on organizational outcomes have not been examined. Therefore, using 100 undergraduate students, the effects of stress and co-rumination on creativity and performance were examined. Results did not show that stress and co-rumination …