Volume 3, Issue 3 (Autumn 2016)                   johe 2016, 3(3): 40-46 | Back to browse issues page

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Mohebian Z, Mehrifar Y, Dehghan H, Habibi E, Yadegarfar G. Investigating the combined effects of heat and lighting on students reaction time in laboratory condition. johe 2016; 3 (3) :40-46
URL: http://johe.umsha.ac.ir/article-1-231-en.html
Investigating the combined effects of heat and lighting on students reaction time in laboratory condition
Zohre Mohebian1 , Younes Mehrifar2 , Habibollah Dehghan * 3, Ehsanollah Habibi2 , Ghasem Yadegarfar
1- Department of Occupational Health Engineering, Faculty of Health, Iranshahr University of Medical Sciences, Iranshahr, Iran.
2- Department of Occupational Health Engineering, School of Health
3- Department of Occupational Health Engineering, School of Health , ha_dehghan@hlth.mui.ac.ir
Abstract:   (7731 Views)

Introduction: In many workplaces there is exposure to heat and light simultaneously. This study investigated the combined effect of heat and lighting on some cognitive performance, i.e. reaction time.

Methodology: the present semi-experimental study was conducted 2015 on 33 healthy students (16 girls and 17 boys) with a mean age of 22.1 in the thermal stress chamber. The reaction time parameter by the reaction time measurement device, after exposure to different heat surfaces (dry temperatures 22 °C and 37 °C) and lighting surfaces (200, 500 and 1500 lux). Data were analyzed using ANOVA test in SPSS-20.

Results: The results showed that the average simple, diagnostic, two-color selective, two-sound selective reaction times and reaction time error increased after combined exposure to heat and lighting and showed a significant difference (P<0.05). The maximum score of reaction time belong to temperature of 37 c° and lighting of 1500 lux, the minimum score of reaction time belong to temperature of 22 °c and lighting of 1500 lux.

Keywords: Heat, Combined Effect, Lighting, Reaction Time
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Type of Study: Research Article | Subject: Physical agents
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