Human responses to brief psychological stressors are characterized by changes and large individual differences in autonomic, neuroendocrine, and immune function. The authors examined the effects of brief psychological stressors on cardiovascular, neuroendocrine, and cellular immune response in 22 older women to investigate the common effects of stress across systems. They also used interindividual variation in heart rate reactivity, cardiac sympathetic reactivity (as indexed by preejection period reactivity in their reactivity paradigm), and cardiac vagal reactivity (as indexed by respiratory sinus arrhythmia reactivity) to explore the heterogeneity in human responses to brief psychological stressors. The results revealed that brief psychological stressors heightened cardiac activation, elevated plasma catecholamine concentrations, and affected the cellular immune response. It was also found that individuals characterized by high, relative to low, cardiac sympathetic reactivity showed higher stress-related changes in adrenocorticotropic hormone and cortisol plasma levels but comparable changes in epinephrine and norepinephrine concentrations. These data suggest that the effects of psychological stressors on cardiovascular and cellular immune response are governed by coordinated regulatory mechanism(s) and that going beyond the simple notion of heart rate reactivity to examine neural substrates may shed light on the interrelationships among and the regulatory mechanisms for the autonomic, endocrine, and immune responses to stressors.
High and low reactors were preselected on the basis of their heart rate reactivity to a speech stressor in a prescreening session. In the main study, subjects were exposed to a mental arithmetic plus noise stressor. Cardiovascular activity was recorded during baseline and stressor, and blood was drawn prior to and following the stressor for endocrine and immune assays. Results revealed that the stressor decreased the blastogenic response to concanavalin A and increased natural killer cell numbers and cytotoxicity, absolute numbers of CD8+ T-lymphocytes, norepinephrine and epinephrine levels, heart rate, and blood pressure responses. In addition, cortisol and natural killer cell cytotoxicity responses to the stressor differentiated individuals high versus low in heart rate reactivity. These results suggest that the interactions among the autonomic nervous system, endocrine system, and immune system are not only amenable to psychophysiological analysis but that such analyses may play an important role in illuminating underlying mechanisms.
Developing interventions to address the problem of college drinking requires the identification of contributing factors to drinking behavior. It is believed that religion and spirituality (R/S) play a role, but the mechanism is unclear. Using a multi-dimensional R/S measure, an alcohol behavior inventory, and a religious affiliation proscription question, this study was designed to dive deeper into this connection. This study found that religious singing/chanting and reading sacred text were the best predictors of lower alcohol consumption. Furthermore, participants who perceive their religious tradition to be proscriptive reported less alcohol consumption and higher religious/spiritual profiles.
Heterosexual privilege is a challenging concept to teach in undergraduate courses. Using data from self-reflection essays on the first and last days of the semester, we present students' learning and growth in their understanding of heterosexual privilege and their ability to distinguish it from cisgender privilege. The majority of students accurately identified an instance of heterosexual privilege in their lives and discussed the counterpart to privilege: the marginalization and/or disenfranchisement experienced by individuals who hold other sexual identities. This article highlights the two most common misunderstandings of heterosexual privilege that emerged in students' writing. On the first day of class, 18.2% outright denied that heterosexual privilege exists, and 17.6% conflated gender with sexuality. It reduced to 11.9% and 11.3%, respectively, on the last day of class. We saw growth in students' sophistication of perspective even for some students who demonstrated these misunderstandings at the end of the term.
Cultivating a community of faculty to support Scholarship of Teaching and Learning (SoTL) work at universities can be challenging. There are many obstacles to overcome—obstacles such as how to sustain such efforts over time. The Center for Educational Excellence set out to design a strategic plan designed to address certain barriers to SoTL work and to create a long-standing community of practice for a SoTL group of faculty members—a group that has lasted over nine years to date. This chapter outlines strategies employed over the years and the evolution of the interdisciplinary group from a learning community to community of practice. The stories of past and present members are included along with advice on how others may have successful programs at their universities.
Establishing a networked framework of equitable, democratic, and mutually beneficial partnerships in campus-community collaboration is essential for promoting positive social change. Furthermore, the utilization of tools developed to assess both the network and the individual partnerships, with the purpose of improvement over time, is necessary, especially in the context of ever-changing circumstances. This article discusses a study that examined the efficacy of using a model of social change created by stakeholders at one institution as a lens for examining a range of initiatives aimed at producing positive and holistic impact in the community. Perceptions were analyzed using mixed methods and triangulation of both qualitative and quantitative data from faculty and community partners. Overall, the model was useful in the design and implementation of the assessment of both individual partnerships and the network of initiatives. Furthermore, the model's components effectively guided participants in their reflection on how to strengthen their collaboration and enhance the future positive impact.
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