Evaluation of the combined effects of heat and lighting on the level of attention and reaction time : climate chamber experiments in Iran

Heat exposure and unsuitable lighting are two physical hazardous agents in many workplaces for which there are some evidence regarding their mental effects. The purpose of this study was to assess the combined effect of heat exposure and different lighting 17F)/UVM) healthy students T levels on the attention rate and reaction time in a climatic chamber. This study was conducted on years. The attention and reaction time test were done by continuous performance test and the 2٫3 22, with a mean (+SD) age of ,200) C) and lighting levels°37 Candl°22) RT meter, respectively in different exposure conditions including the dry temperatures lux). Findings demonstrated that increase in heat and lighting level caused a decrease in average attention percentage 10.. and O.. The average of simple, (•,. > and correct responses and increase in commission error, omission error and response time (P diagnostic, two-colour selective and two-sound selective reaction times increased after combined exposure to heat and lighting The results of this study indicated that in job task which require using cognitive functions like attention, vigilance, (;:0> (P .concentration, cautiousness and reaction time, the work environment must be optimized in terms of heat and lighting level

کلیدواژه ها:

Heating ، Lighting ، Attention ، Reaction Time ، Cognitive Performance