Effects of high concentration oxygen administration onn-back task performance and physiological signals
| Autor: | Soo Yeol Lee, Hang-Woon Lee, Bongsoo Lee, Gye-Rae Tack, Soon-Cheol Chung, Jeong-Han Yi, Ji-Hun Kwon |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Adult
Male Physiology Behavioural analysis Biomedical Engineering Biophysics chemistry.chemical_element Oxygen Task (project management) Cognition Oxygen Consumption Heart Rate Physiology (medical) Task Performance and Analysis Heart rate Humans Medicine Oxygen saturation (medicine) High concentration Hyperoxia n-back business.industry chemistry Anesthesia Female medicine.symptom business |
| Zdroj: | Physiological Measurement. 28:389-396 |
| ISSN: | 1361-6579 0967-3334 |
| DOI: | 10.1088/0967-3334/28/4/005 |
| Popis: | This study investigated the effect of 40% oxygen administration on n-back task performance, blood oxygen saturation and heart rate. Five male (25.8 +/- 1.3 years) and five female (23.0 +/- 1.0 years) college students were selected as the subjects for this study. The experiment consisted of two runs: one was an n-back task with normal air (21% oxygen) administered and the other was with hyperoxic air (40% oxygen) administered. The experimental sequence in each run consisted of Rest1 (1 min), 0-back task (1 min), 2-back task (2 min) and Rest2 (4 min). Blood oxygen saturation and heart rate were measured throughout the four phases. The results of the n-back behavioural analysis reveal that accuracy rates were enhanced with 40% oxygen administration compared to 21% oxygen. When 40% oxygen was supplied, blood oxygen saturation was increased and heart rate was decreased compared to that with 21% oxygen administration. It is suggested that 40% oxygen can stimulate brain activation by increasing actual blood oxygen concentration in the process of cognitive performance, and hyperoxia makes heart rate decrease. This result supports the hypothesis that 40% oxygen administration would lead to increases in n-back task performance. |
| Databáze: | OpenAIRE |
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