Visione magica - Life's a blur - but we don't see it that way
Quando osserviamo il mondo intorno a noi i nostri occhi si muovono in continuazione. Se non vediamo immagini sfocate e instabili è per merito di un trucco messo in atto dal nostro cervello Life's a blur - but we don't see it that way Our brains manage to construct stable images even as our eyes keep darting around. Here's what we know about how that happens. The image above, "A Sunday Afternoon on the Island of La Grande Jatte," was painted in 1884 by French artist Georges Seurat. The black lines crisscrossing it are not the work of a toddler wreaking havoc with a permanent marker, but that of neuroscientist Robert Wurtz of the National Eye Institute in the US. Ten years ago, he asked a colleague to look at the painting while wearing a contact lens-like contraption that recorded the colleague's eye movements. These were then translated into the graffiti you see here. https://knowablemagazine.org/article/living-world/2019/saccades-lifes-blur-we-dont-see-it-way Nota: l'articolo e' stato pubblicato in italiano sulla rivista settimanale Internazionale n. 1321, 23/26 agosto 2019 |