They send signals to the fly’s brain whenever the fly changes its direction, as when the little fellow is buffeted by a gust of wind or by the flurry of a swatter or a newspaper that whistles by perilously close.
Tie sūta signālus mušas smadzenēm ikreiz, kad tā maina virzienu, piemēram, kad pret mušu triecas vēja brāzma vai arī gaisa vilnis no bīstami tuvu nozibējušas pletnes vai salocītas avīzes.