| 摘要 |
FIELD: medicine. ^ SUBSTANCE: invention relates to medicine and is designed for determining the duration of training of assessment the time of persistence of human vision system. The subject is demonstrated a sequence of two light pulses of duration Fi = 50 ms, separated by a pause in the initial duration of tp beg = 150 ms, repeated every constant time interval T = 1.5 s. In the first stage of measurement the duration of the pause between two light pulses is decreased with a constant speed of 20 ms/s, till the subject does not identify the moment of subjective fusion of two light pulses into one. On the second stage of measurement the pause duration between two light pulses is increased at a constant speed of 5 ms/s, until the subject does not determine the moment of the subjective sensation of separateness of these two light pulses. On the third stage of measurement the pause duration between two light pulses is decreased with a constant speed of 1 ms/s, until the subject does not define the moment of subjective fusion of two light pulses into one. The time of persistence of human vision system tper is taken as equal to the value of the pause duration tp, which is marked on the plane in coordinates of "value of time of persistence of human vision system - the number of the measurement". The described procedure is repeated several times, a graph of dependence of values of time of persistence of human vision system tin is made as a function tin=f(Ni), where Ni is a number of i-measurement, i = 1, 2Çk; k is a number of measurements before obtaining a quasi-stationary regime, when the transition process is completed. Training duration is determined by the number of measurements made during the transition process. ^ EFFECT: method enables to take into account the individual character of stabilisation of the measured values of time of persistence of human vision system. ^ 5 dwg, 2 ex |
