The frontal part, it seems that it works as a filter trying to let information come in only from the right flicker that you are paying attention to and trying to inhibit the information coming from the ignored one.
Il semblerait que la partie frontale fasse office de filtre qui tente de laisser passer seulement l'information provenant du clignotement auquel on prête attention, en essayant de réfréner l'information qui vient de l'autre carré.