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Combined Effect of Noise and Smoking on the Cognitive Performance of Automotive Industry Workers

INTRODUCTION: Noise is an environmental stressor and can cause or exacerbate mental disorders, and affect the individual performance in certain conditions. This study aimed to evaluate the combined effects of noise and smoking on the cognitive performance of the workers in the automotive industry. M...

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Autores principales: Alimohammadi, Iraj, Ahmadi Kanrash, Fakhradin, Abolghasemi, Jamileh, Shahbazi, Ali, Afrazandeh, Hanieh, Rahmani, Kazem
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Iranian Neuroscience Society 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7149955/
https://www.ncbi.nlm.nih.gov/pubmed/32284840
http://dx.doi.org/10.32598/bcn.10.5.513
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author Alimohammadi, Iraj
Ahmadi Kanrash, Fakhradin
Abolghasemi, Jamileh
Shahbazi, Ali
Afrazandeh, Hanieh
Rahmani, Kazem
author_facet Alimohammadi, Iraj
Ahmadi Kanrash, Fakhradin
Abolghasemi, Jamileh
Shahbazi, Ali
Afrazandeh, Hanieh
Rahmani, Kazem
author_sort Alimohammadi, Iraj
collection PubMed
description INTRODUCTION: Noise is an environmental stressor and can cause or exacerbate mental disorders, and affect the individual performance in certain conditions. This study aimed to evaluate the combined effects of noise and smoking on the cognitive performance of the workers in the automotive industry. METHODS: This research is a descriptive-analytical study with a cross-sectional design conducted on 300 workers randomly assigned into two groups of noise-exposed and nonexposed. They were examined using computerized tests, including the Tower of London test (TOL), Continuous Performance test (CPT), and Stroop test. The sound pressure levels were measured based on an 8-hour equal-loudness contour in each group according to ISO 9612 standard, using the Testo CEL-815 sound level meter. RESULTS: The study of combined effects of noise and smoking on 12 CPT indicators using the 2-way Analysis of Variance (ANOVA) indicate that noise and smoking factors had a significant impact on the mean number of errors and correct responses in the third 50-stimuli stage, the mean number of errors and correct responses in the second 50-stimuli stage with P<0.001, P<0.001, P=0.012 and P<0.001 for smoking respectively, but only noise affected the other 7 indicators (P<0.001). CONCLUSION: Smoking and noise have negative impacts on concentration, attention, and cognitive processing speed, which can lead to an individual’s mistakes and delayed decision making at the workplace.
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spelling pubmed-71499552020-04-13 Combined Effect of Noise and Smoking on the Cognitive Performance of Automotive Industry Workers Alimohammadi, Iraj Ahmadi Kanrash, Fakhradin Abolghasemi, Jamileh Shahbazi, Ali Afrazandeh, Hanieh Rahmani, Kazem Basic Clin Neurosci Research Paper INTRODUCTION: Noise is an environmental stressor and can cause or exacerbate mental disorders, and affect the individual performance in certain conditions. This study aimed to evaluate the combined effects of noise and smoking on the cognitive performance of the workers in the automotive industry. METHODS: This research is a descriptive-analytical study with a cross-sectional design conducted on 300 workers randomly assigned into two groups of noise-exposed and nonexposed. They were examined using computerized tests, including the Tower of London test (TOL), Continuous Performance test (CPT), and Stroop test. The sound pressure levels were measured based on an 8-hour equal-loudness contour in each group according to ISO 9612 standard, using the Testo CEL-815 sound level meter. RESULTS: The study of combined effects of noise and smoking on 12 CPT indicators using the 2-way Analysis of Variance (ANOVA) indicate that noise and smoking factors had a significant impact on the mean number of errors and correct responses in the third 50-stimuli stage, the mean number of errors and correct responses in the second 50-stimuli stage with P<0.001, P<0.001, P=0.012 and P<0.001 for smoking respectively, but only noise affected the other 7 indicators (P<0.001). CONCLUSION: Smoking and noise have negative impacts on concentration, attention, and cognitive processing speed, which can lead to an individual’s mistakes and delayed decision making at the workplace. Iranian Neuroscience Society 2019 2019-09-01 /pmc/articles/PMC7149955/ /pubmed/32284840 http://dx.doi.org/10.32598/bcn.10.5.513 Text en Copyright© 2019 Iranian Neuroscience Society http://creativecommons.org/licenses/by/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Paper
Alimohammadi, Iraj
Ahmadi Kanrash, Fakhradin
Abolghasemi, Jamileh
Shahbazi, Ali
Afrazandeh, Hanieh
Rahmani, Kazem
Combined Effect of Noise and Smoking on the Cognitive Performance of Automotive Industry Workers
title Combined Effect of Noise and Smoking on the Cognitive Performance of Automotive Industry Workers
title_full Combined Effect of Noise and Smoking on the Cognitive Performance of Automotive Industry Workers
title_fullStr Combined Effect of Noise and Smoking on the Cognitive Performance of Automotive Industry Workers
title_full_unstemmed Combined Effect of Noise and Smoking on the Cognitive Performance of Automotive Industry Workers
title_short Combined Effect of Noise and Smoking on the Cognitive Performance of Automotive Industry Workers
title_sort combined effect of noise and smoking on the cognitive performance of automotive industry workers
topic Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7149955/
https://www.ncbi.nlm.nih.gov/pubmed/32284840
http://dx.doi.org/10.32598/bcn.10.5.513
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