Binocular Rivalry (BR) is a phenomenon that takes place when different images are presented to each eye separately (dichoptic presentation). The same physical stimulus can elicit diferent percepts in a stochastical alternation. The rate of alternation is de Natural Alternation Rate (NAR) which is stable and highly heretable. Our hipothesis is that the Individual Alpha Frequency peak (Hz) will correlate positively with the Natural Aternation Rate in binocular rivalry across subjects