ĐÁNH GIÁ ĐỘ LINH HOẠT HỆ THẦN KINH TRUNG ƯƠNG THÔNG QUA CHUỖI PHẢN XẠ THỊ GIÁC VẬN ĐỘNG CỦA CÔNG NHÂN TẠI NHÀ MÁY SẢN XUẤT THUỐC PHÓNG THUỐC NỔ

Tóm tắt

ASSESSMENT ON REACTION SPEED OF THE CENTRAL NERVOUS SYSTEM BASED BY VISUAL REFLEXES OF WORKERS AT GUNPOWDER FACTORIES

The study was conducted to evaluate the ability of receiving - processing information through the visual organ to the central nervous system by visual reflexes tests with monochromatic light, color light complexes and moving targets. Participants were 247 workers aged 27 to 57 from two factories manufacturing explosive X and Y. They were divided into 2 groups: one group working in direct contact with chemicals manufacturing explosives (n=158) and the other group working in other workshops that do not come in direct contact with chemicals manufacturing explosives (n=89). Visual reflexes is assessed through criteria: average visual reflex time from light stimulation to reflex (ms), maximum and minimum reflex time (ms), error rate (%), accuracy of reflex (%) and activation speed of the central nervous system. The results showed that the ability of receiving and processing information from the visual organs to the central nervous system of workers at the explosives factory manufacturing was lower than those at other working environment. Although their speed of receiving and processing information, and activation speed of their central nervous system were low, their level of cautiousness and accuracy during manufacturing is high. The group of workers directly exposed to explosive chemicals had high sensitivity and were capable of quick reflex to monochrome light. Their processing speed was slow but their answers of the color light combination were accurate.