“if a player wins over her opponent in one play, her probability of repeating the same action in the next play is considerably higher than her probabilities of shifting actions.”

On the other hand, if a player loses two or more times in a row, he or she will not play the same sign, but will instead play whichever sign would have beaten the one that had just allowed his or her opponent to win

Science Has Finally Figured Out How to Win Rock-Paper-Scissors.