[Bandwidth measurement technique for spatial frequency channels in human visual system].

Aim: to determine the number of measurements required to obtain stable bandwidth values for spatial frequency channels (SFCs) in the human visual system.

Material And Methods: Ten untrained, normal vision subjects 18-22 years old were presented with light pulses (flickers) with initial frequency of 10 Hz and then with a higher-than-initial and lower-than-initial frequency alternately at 1-sec intervals. The difference between flickers frequencies was gradually increased until the test subject determined his/her discrimination threshold.

Study of the time of the visual system recovery.

The time of the visual system recovery was studied. The experimental method is presented. The results confirm a relationship between the duration of the threshold interval between pulses and the duration of light pulses.