Sunday, November 22, 2015
How We See Motion and Still Objects
"A Dartmouth study reveals how the brain understands motion and still objects to help us navigate our complex visual world," notes Medical News Today. "The findings have a number of potential practical applications, ranging from treatment for motion blindness to improved motion recognition algorithms used in airport and other public security systems. The study appears in the journal Neuroimage. ...Our brain's visual system consists of a 'where' (dorsal) pathway and a 'what' (ventral) pathway. A normally function brain can imply motion from still pictures, such as the speed line in cartoons being interpreted as motion streaks of a still object. However, patients with lesions to the dorsal pathway know where objects are but have difficulty recognizing them, while patients with lesions to the ventral pathway have trouble recognizing objects but no problem locating them." Read more.