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- All Subjects: Stress
- Creators: Department of Psychology
Exploration of a mouse model (C57BL/6J) capable of demonstrating behavioral changes after adolescent social isolation that are consistent with prior findings may prove beneficial in later research. This study examined 2 proposed long-term effects of isolated housing (one mouse/cage), when compared to group housing (two mice/cage) during adolescence. Mice were placed in their respective housing conditions after weaning (PND 21) and remained in those conditions until PND 60. The same cohorts were used in both phases of the experiment. Phase 1 sought to confirm previous findings that showed increases in ethanol intake after adolescent social isolation using a 2-bottle preference Drinking-in-the-Dark (DID) design over a 4-day period (PND 64-PND 67.). Phase 2 sought to elucidate the effects present after adolescent social isolation, as measured using response inhibition capabilities demonstrated during fixed-minimum interval (FMI) trials (PND 81-PND 111). Findings in phase 1 of the experiment were non-significant, save a strong tendency for female mice in both housing conditions to drink more as a proportion of their bodyweight (g/kg). However, a trend of lower bodyweight in single housed mice did exist, which does suggest that detrimental stress was applied via the used of adolescent isolation in that housing condition. Findings in phase 2 showed little effect of adolescent social isolation on mean inter-response time (IRT) at any criterion used (FMI-0, FMI-4, FMI-6). Evaluation of mean interquartile range (IQR) of IRTs showed a significantly greater amount of variation in IRT responses within single housed mice at the highest criterion (FMI-6), and a trend in the same direction when FMI-4 and FMI-6 were tested concurrently. Taken as a whole, the findings of this experiment suggest that the effect of adolescent social isolation on ethanol intake is far less robust than the effect of sex and may be difficult to replicate in a low-power study. Additionally, adolescent social isolation may interfere with the ability of mice to show consistent accuracy during FMI tasks or a delay in recognition of FMI criterion change.
to the Hayden Library 2020 renovations team.
This study investigates the effects of Bharatanatyam dance on stress, mood, and anxiety. I have danced Bharatanatyam since I was 8 years old, it has offered me a way to release stress and anxiety. This study provides empirical data to support the claim that Bharatanatyam has therapeutic effects that release stress and reduce anxiety. This investigation was conducted through self-reports and interviews. A Positive Affect and Negative Affect Schedule (PANAS) scale was used to determine positive and negative effects. The average positive affect during the “dance weeks” (DW) was 46.6 and the average negative affect was 12.2. During the “no dance weeks” (NDW), the average positive effect was 23.7 and the average negative affect was 31. The participant’s interview PANAS results had an average positive effect of 39.8 and an average negative effect of 12.8. Analyzing the self-report journaling highlighted a more prevalent use of positive words during the DW and a more significant use of negative words during the NDW. The Bharatanatyam dancers who were probed to enter post-performance environment for an interview also used positive words to describe Bharatanatyam dancing. In conclusion, practicing Bharatanatyam had an overall positive effect on mood, and can reduce stress and anxiety.
Psychological stress is thought to arise from appraisal processes that ascribe threat-related meaning to experiences that tax or exceed our coping ability (Gianaros & Wager, 2015). Gianaros & Wager (2015) found that there is a positive correlation between brain-body pathways which link psychological stress and physical health. The stress response includes sympathetic nervous system activation, which is equitable to the fight-or-flight response and increases heart rate and blood pressure (Al’Absi et al., 2016). Stress affects multiple physiological systems including the immune and reproductive systems. Cardiovascular disease is one of the main risks of prolonged stress, with research indicated an association between stress and a significant increased risk of cardiovascular disease (Backe et al., 2012; Rosengren et al., 2004). With cardiovascular disease being a main contributor to illness and death in the United States, it is crucial that the disease is prevented or treated.