The Effects of Acute Psychosocial Stress on Cognitive Performance
| العنوان: | The Effects of Acute Psychosocial Stress on Cognitive Performance |
|---|---|
| المؤلفون: | Gray, Anne I.S., Gray, Anne I.S. |
| Added Details: | Doherty, Shawn Michael, advisor Embry-Riddle Aeronautical University. Department of Human Factors and Systems. |
| Call Numbers: | BF481 .G73 2013eb |
| وصف مادي: | 1 online resource (ix, 52 leaves) : color illustrations |
| مستخلص: | "The purpose of this study was to examine the effects of acute psychological stress on cognitive performance. Psychological stress evolves from the perceived presence of a social-evaluative threat and results in the activation of the hypothalamic-pituitary-adrenal axis. As part of this reaction the stress hormone cortisol is secreted into the blood stream, ultimately crossing the blood-brain barrier, where it can have profound effects on various aspects of cognition. A review of the literature reveals that that attention, working memory, spatial judgment and cognitive processing efficiency are particularly susceptible to stress induced changes in performance level. A test battery from the Automated Neuropsychological Assessment Metrics library was utilized to test these aspects of cognition under basal and stressed conditions. Specifically, the Manikin task, Mathematical processing task and Switching task were utilized. The Trier Social Stress Test protocol was employed to induce psychosocial stress reaction in participants. Eight male volunteers were recruited as participants for this study and a within subjects design was used. Participants demonstrated significantly elevated salivary cortisol concentrations following exposure to the stress manipulation, suggesting that the Trier Social Stress Test was successful at eliciting a psychosocial stress response amongst participants. In the Stressed condition performance on the Manikin task demonstrated a reduction in response latency and an increase throughput, calculated as an accuracy-speed ratio. Performance on the Switching task also demonstrated a reduction in response latency in the Stressed condition. These findings lend support to the theory that performance under stress follows an inverted-U shaped curve as cognitive performance improved under moderate amounts of stress."--Leaf iv. |
| الموضوعات: | Stress (Physiology), Stress (Psychology), Performance., Psychophysiology., Stress., Psychophysiologie., Performance, Psychophysiology, Stress (Physiology), Stress (Psychology) |
| URL: | |
| الاتاحة: | Open access content. Open access content |
| ملاحظة: | Also available in print. "Daytona Beach, Florida, Summer 2013." Includes bibliographical references (leaf 42). |
| Other Numbers: | FER oai:commons.erau.edu:edt-1075 1014343432 |
| المصدر المساهم: | From OAIster®, provided by the OCLC Cooperative. |
| رقم الانضمام: | edsoai.on1014343432 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |