"The Winking Effect"

"Подмигивание" -- one of the most pronounced dynamic "visual illusions" (flash):

http://journalofvision.org/4/6/5/ICA.htm

(via http://scienceblogs.com/mixingmemory/2007/05/cool_visual_illusions_the_wink_1.php, which contains the explanation and links to some related illusions)