| タイトル | A Review of Cognitive and Behavioral Effects of Increased Carbon Dioxide Exposure in Humans |
| 本文（外部サイト） | http://hdl.handle.net/2060/20160003872 |
| 著者（英） | Oman, Charles M.; Schneiderman, Jason; Stankovic, Aleksandra; Alexander, David |
| 発行日 | 2016-01-01 |
| 言語 | eng |
| 内容記述 | Existing research has reliably demonstrated the respiratory and cardiovascular effects of carbon dioxide (CO2) inhalation at moderately increased levels, with documented physiological changes to heart rate, blood pressure, tissue pH, and blood solubility (for a review of the human health risks of acute elevated CO2 exposure, see Rice, 2004). Studies of indoor air quality have linked increased levels of ambient CO2 with physiological symptoms such as headache, fatigue, and sore throat (Apte et al., 2000; Seppanen et al., 1999; Wargocki et al., 2000). High levels of CO2 (35%) have reliably resulted in activation of the hypothalamic-pituitary-adrenocortical (HPA) axis and subjective anxiety responses in healthy individuals (Argyropoulos et al., 2002), as well as panic attack-like symptoms (Colasanti et al., 2008; Griez et al., 2007) and experiences of physiological stress (Consolazio & Fisher, 1947; Kaye et al., 2004). While significant neurological findings correspond to high levels of CO2 exposure, less clinically significant cognitive effects may occur at a much lower level. These cognitive changes and the exposure thresholds at which they occur are less well established than their physiological counterparts; this paper, therefore, reviews the existing literature on the cognitive, neurological, and psychomotor effects of increased CO2 exposure, with the objective of identifying research areas in which further investigation remains necessary. In particular, this investigation is motivated by the chronic exposure to elevated ambient CO2 concentrations experienced by astronauts aboard the International Space Station (ISS), and the CO2 exposure-related symptoms that have been reported by astronauts on orbit (James, 2007; Law & Watkins, 2009). Such exposure may negatively affect crew health and operations, including mission safety and the successful completion of scientific goals. |
| NASA分類 | Aerospace Medicine |
| レポートNO | JSC-CN-35745 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/561278 |
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