Evaluation of Students’ Cognitive Performance while Exposed to Heat using Continues Performance Test
Background & Objectives: Many studies were conducted to determine the effects of heat stress on human performance. However, they could not reach a decisive conclusion, mainly due to a large variation in experimental conditions and tests. This study investigated cognitive performance of universit...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | fas |
| Published: |
Hamadan University of Medical Sciences
2014-06-01
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| Series: | Muhandisī-i bihdāsht-i ḥirfah/ī |
| Subjects: | |
| Online Access: | http://johe.umsha.ac.ir/browse.php?a_id=44&slc_lang=en&sid=1&ftxt=1 |
| _version_ | 1818067390868488192 |
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| author | Mohammad Javad Jafari Mahsa Naserpour Mohammad Reza Monazzam Mahnaz Saremi Hamid Reza Pouragha Shahneshin Sara Jam Bar Sang |
| author_facet | Mohammad Javad Jafari Mahsa Naserpour Mohammad Reza Monazzam Mahnaz Saremi Hamid Reza Pouragha Shahneshin Sara Jam Bar Sang |
| author_sort | Mohammad Javad Jafari |
| collection | DOAJ |
| description | Background & Objectives: Many studies were conducted to determine the effects of heat stress on human performance. However, they could not reach a decisive conclusion, mainly due to a large variation in experimental conditions and tests. This study investigated cognitive performance of university students exposed to different levels of heat stress under laboratory condition.
Methods: In this cross sectional study,33 students aged 23-35 years performed cognitive tests. Participants were exposed to four Wet Bulb Globe Temperature (WBGT) of 18, 22, 29 and 33 ºC under laboratory conditions while performing CPT tests to investigate attention and reaction time.
Results: The maximum percentage of continues attention (99.67%) belonged to WBGT of 22 º C, and at the upper and lower levels of exposure (WBGT of 18 and 33 º C) percentage of attention was reduced. Although the percentage of attention was changed in different levels of heat stress, statistical analysis did not show any significant differences in attention between levels of heat stress (Pvalue>0.05). In addition, increase in WBGT index from 22-33 º C increased the reaction time. At the WBGT of 33 º C, statistical analysis showed significant difference in reaction time compared to other heat stress levels(Pvalue<0.05).
Conclusion: The results revealed that in the CPT test, exposure to heat stress at levels of occupational exposure limit,wouldimprove performances, but exposure to higher levels of heat stress woulddecrease it. |
| first_indexed | 2024-12-10T15:22:56Z |
| format | Article |
| id | doaj.art-db9a467a03474b1182bdb90456377488 |
| institution | Directory Open Access Journal |
| issn | 2383-3378 2383-3378 |
| language | fas |
| last_indexed | 2024-12-10T15:22:56Z |
| publishDate | 2014-06-01 |
| publisher | Hamadan University of Medical Sciences |
| record_format | Article |
| series | Muhandisī-i bihdāsht-i ḥirfah/ī |
| spelling | doaj.art-db9a467a03474b1182bdb904563774882022-12-22T01:43:38ZfasHamadan University of Medical SciencesMuhandisī-i bihdāsht-i ḥirfah/ī2383-33782383-33782014-06-011219Evaluation of Students’ Cognitive Performance while Exposed to Heat using Continues Performance TestMohammad Javad JafariMahsa NaserpourMohammad Reza MonazzamMahnaz SaremiHamid Reza Pouragha ShahneshinSara Jam Bar SangBackground & Objectives: Many studies were conducted to determine the effects of heat stress on human performance. However, they could not reach a decisive conclusion, mainly due to a large variation in experimental conditions and tests. This study investigated cognitive performance of university students exposed to different levels of heat stress under laboratory condition. Methods: In this cross sectional study,33 students aged 23-35 years performed cognitive tests. Participants were exposed to four Wet Bulb Globe Temperature (WBGT) of 18, 22, 29 and 33 ºC under laboratory conditions while performing CPT tests to investigate attention and reaction time. Results: The maximum percentage of continues attention (99.67%) belonged to WBGT of 22 º C, and at the upper and lower levels of exposure (WBGT of 18 and 33 º C) percentage of attention was reduced. Although the percentage of attention was changed in different levels of heat stress, statistical analysis did not show any significant differences in attention between levels of heat stress (Pvalue>0.05). In addition, increase in WBGT index from 22-33 º C increased the reaction time. At the WBGT of 33 º C, statistical analysis showed significant difference in reaction time compared to other heat stress levels(Pvalue<0.05). Conclusion: The results revealed that in the CPT test, exposure to heat stress at levels of occupational exposure limit,wouldimprove performances, but exposure to higher levels of heat stress woulddecrease it.http://johe.umsha.ac.ir/browse.php?a_id=44&slc_lang=en&sid=1&ftxt=1Heat StressAttentionReaction TimeContinues Performance Test |
| spellingShingle | Mohammad Javad Jafari Mahsa Naserpour Mohammad Reza Monazzam Mahnaz Saremi Hamid Reza Pouragha Shahneshin Sara Jam Bar Sang Evaluation of Students’ Cognitive Performance while Exposed to Heat using Continues Performance Test Muhandisī-i bihdāsht-i ḥirfah/ī Heat Stress Attention Reaction Time Continues Performance Test |
| title | Evaluation of Students’ Cognitive Performance while Exposed to Heat using Continues Performance Test |
| title_full | Evaluation of Students’ Cognitive Performance while Exposed to Heat using Continues Performance Test |
| title_fullStr | Evaluation of Students’ Cognitive Performance while Exposed to Heat using Continues Performance Test |
| title_full_unstemmed | Evaluation of Students’ Cognitive Performance while Exposed to Heat using Continues Performance Test |
| title_short | Evaluation of Students’ Cognitive Performance while Exposed to Heat using Continues Performance Test |
| title_sort | evaluation of students cognitive performance while exposed to heat using continues performance test |
| topic | Heat Stress Attention Reaction Time Continues Performance Test |
| url | http://johe.umsha.ac.ir/browse.php?a_id=44&slc_lang=en&sid=1&ftxt=1 |
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