%0 Journal Article %A Mohebian, Zohre %A Mehrifar, Younes %A Dehghan, Habibollah %A Habibi, Ehsanollah %A Yadegarfar, Ghasem %T Investigating the combined effects of heat and lighting on students reaction time in laboratory condition %J Journal of Occupational Hygiene Engineering %V 3 %N 3 %U http://johe.umsha.ac.ir/article-1-231-en.html %R 10.21859/johe-03035 %D 2016 %K Keywords: Heat, Combined Effect, Lighting, Reaction Time, %X 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. %> http://johe.umsha.ac.ir/article-1-231-en.pdf %P 40-46 %& 40 %! Investigating the combined effects of heat and lighting on students reaction time in laboratory condition %9 Research Article %L A-10-288-1 %+ Department of Occupational Health Engineering, School of Health %G eng %@ 2383-3378 %[ 2016