Associations of Human Cognitive Abilities with Elevated Carbon Dioxide Concentrations in an Enclosed Chamber
Fifteen participants were exposed in an enclosed environmental chamber to investigate the effects of elevated carbon dioxide (CO<sub>2</sub>) concentration on their cognitive abilities. Three CO<sub>2</sub> conditions (1500, 3500, and 5000 ppm) were achieved by constant air s...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/13/6/891 |
| _version_ | 1797490117190877184 |
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| author | Xiaodong Cao Pei Li Jie Zhang Liping Pang |
| author_facet | Xiaodong Cao Pei Li Jie Zhang Liping Pang |
| author_sort | Xiaodong Cao |
| collection | DOAJ |
| description | Fifteen participants were exposed in an enclosed environmental chamber to investigate the effects of elevated carbon dioxide (CO<sub>2</sub>) concentration on their cognitive abilities. Three CO<sub>2</sub> conditions (1500, 3500, and 5000 ppm) were achieved by constant air supply and additional ultrapure CO<sub>2</sub>. All participants received the same exposure under each condition, during which they performed six cognitive tests evaluating human perception, attention, short-term working memory, risky decision-making, and executive ability. Generalized additive mixed effects model (GAMM) results showed no statistically significant differences in performance on the reaction time (RT) tests, the speed perception test, and the 2-back test. This suggests that elevated CO<sub>2</sub> concentrations below 5000 ppm did not affect participants’ perception and short-term working memory. However, a significant increase in response time was observed in the visual search (VS) test, the balloon simulation risk test (BART), and the Stroop test at 5000 ppm compared to lower exposure concentrations. The slower responses reflected the detrimental effects of elevated CO<sub>2</sub> concentrations on visual attention, risky decision-making, and executive ability. The findings suggest that the control level of CO<sub>2</sub> concentrations should be tighter in enclosed workplaces where rapid response and operational safety are required. |
| first_indexed | 2024-03-10T00:26:23Z |
| format | Article |
| id | doaj.art-22d88ff241ae42c582af306d37a4880f |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T00:26:23Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-22d88ff241ae42c582af306d37a4880f2023-11-23T15:32:18ZengMDPI AGAtmosphere2073-44332022-05-0113689110.3390/atmos13060891Associations of Human Cognitive Abilities with Elevated Carbon Dioxide Concentrations in an Enclosed ChamberXiaodong Cao0Pei Li1Jie Zhang2Liping Pang3School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, ChinaSchool of Aeronautic Science and Engineering, Beihang University, Beijing 100191, ChinaCollege of Aeronautics and Astronautics, Taiyuan University of Technology, Taiyuan 030600, ChinaSchool of Aeronautic Science and Engineering, Beihang University, Beijing 100191, ChinaFifteen participants were exposed in an enclosed environmental chamber to investigate the effects of elevated carbon dioxide (CO<sub>2</sub>) concentration on their cognitive abilities. Three CO<sub>2</sub> conditions (1500, 3500, and 5000 ppm) were achieved by constant air supply and additional ultrapure CO<sub>2</sub>. All participants received the same exposure under each condition, during which they performed six cognitive tests evaluating human perception, attention, short-term working memory, risky decision-making, and executive ability. Generalized additive mixed effects model (GAMM) results showed no statistically significant differences in performance on the reaction time (RT) tests, the speed perception test, and the 2-back test. This suggests that elevated CO<sub>2</sub> concentrations below 5000 ppm did not affect participants’ perception and short-term working memory. However, a significant increase in response time was observed in the visual search (VS) test, the balloon simulation risk test (BART), and the Stroop test at 5000 ppm compared to lower exposure concentrations. The slower responses reflected the detrimental effects of elevated CO<sub>2</sub> concentrations on visual attention, risky decision-making, and executive ability. The findings suggest that the control level of CO<sub>2</sub> concentrations should be tighter in enclosed workplaces where rapid response and operational safety are required.https://www.mdpi.com/2073-4433/13/6/891carbon dioxidecognitive abilitycognitive testwork performance |
| spellingShingle | Xiaodong Cao Pei Li Jie Zhang Liping Pang Associations of Human Cognitive Abilities with Elevated Carbon Dioxide Concentrations in an Enclosed Chamber Atmosphere carbon dioxide cognitive ability cognitive test work performance |
| title | Associations of Human Cognitive Abilities with Elevated Carbon Dioxide Concentrations in an Enclosed Chamber |
| title_full | Associations of Human Cognitive Abilities with Elevated Carbon Dioxide Concentrations in an Enclosed Chamber |
| title_fullStr | Associations of Human Cognitive Abilities with Elevated Carbon Dioxide Concentrations in an Enclosed Chamber |
| title_full_unstemmed | Associations of Human Cognitive Abilities with Elevated Carbon Dioxide Concentrations in an Enclosed Chamber |
| title_short | Associations of Human Cognitive Abilities with Elevated Carbon Dioxide Concentrations in an Enclosed Chamber |
| title_sort | associations of human cognitive abilities with elevated carbon dioxide concentrations in an enclosed chamber |
| topic | carbon dioxide cognitive ability cognitive test work performance |
| url | https://www.mdpi.com/2073-4433/13/6/891 |
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