METHOD FOR ASSESSING LIGHT EXPOSURE ON FUNCTIONAL STATUS OF HUMAN BRAIN

摘要

FIELD: medicine.;SUBSTANCE: invention refers to medicine and may be used for assessing the light exposure generated by a light-emitting-diode source on the functional status of human brain cortex. The white light exposure covers individual's open eyes at colour temperature 1700-10000 °K, illumination 80-300 lx at the eye level. That is followed by electroencephalogram recording and spectral analysis. If observing an increase or a decrease of alpha or teta wave spectral power by more than 25% of a baseline value, the light exposure is considered to be physiologically active, and by less than 25% - as physiologically neutral.;EFFECT: method provides more reliable assessment of the functional status of human brain that is ensured by biological activity rating within the alpha and teta wave range.;4 tbl, 4 ex