抄録
Using modulo-2 (exclusive-OR) feedback logic with ten bit of serially connected shiftregisters, an inexpensive pseudo-random pulse generator can easily be made. A simple logic circuit generates a series of pseudo-random pulses in which both duration and interstimulus-interval could be randomly varied. The logic setup has 210-1 maximal cycle length which involves general purpose application for perceptual as well as vigilance experiments.
