The brain reads the images sent to him from the eyes putting together a series of images of the same object "shot" one after the other from the retina, allowing us to see the object and also of 'antic iparci' as we shall see in just after (to explain this mechanism is David Melcher, a neuroscientist at the Interdisciplinary Centre for Mind / Brain (CIMEC), University of Trento in Rovereto).
Our eyes and make continuous small movements, then stop for a moment to fix a point from the retina and take a picture. While we look at an object, then the retina to the brain sends a series of snapshots of the object all different in detail, because each photo, the eyes move and the picture changes. The brain must therefore be equipped with a processing mechanism to decode the infinite number of 'still images' receiving and the pressure entano objects viewed from different angles at different times and thus give us the visual perception.
Melcher understood how this complex system 'hardware' of cataloging and processing of retinal images: subjecting volunteers to visual stimuli, the researcher noted that the brain keeps track of all the snapshots, continuously updating the resulting image we perceive as a word document on your PC can be continuously subjected to minor changes and overwrite the updated file on the previous file saved automatically and continuously. The hardware works without any loss of brain 'byte' of visual information, so that we perceive an image is continuously updated and we are in an able to make small predictions of what we see in the moments immediately following.
The brain puts one on the retinal snapshot and allows us to perceive the image due to its ability to predict the new visual details that send the eyes before moving again. The brain needs time to process the new data coming from the eyes at least a tenth of a second, then without this ability to make 'predictions', the vision of 'real time' would not be possible.
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