saccade
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saccade
by nerd crusher Sun Aug 04, 2013 6:06 pm
http://en.wikipedia.org/wiki/Saccade
Humans and many other animals do not look at a scene in fixed steadiness (as opposed to most birds, for example[citation needed]); instead, the eyes move around, locating interesting parts of the scene and building up a mental, three-dimensional 'map' corresponding to the scene (as opposed to the graphical map of avians, that often relies upon detection of angular movement on the retina). When scanning the scene in front of you or reading these words right now, your eyes make jerky saccadic movements and your eyes stop several times, moving very quickly between each stop. We can not consciously control the speed of movement during each saccade; the eyes move as fast as they can.[3] One reason for the saccadic movement of the human eye is that the central part of the retina—known as the fovea—plays a critical role in resolving objects. By moving the eye so that small parts of a scene can be sensed with greater resolution, body resources can be used more efficiently.
Humans and many other animals do not look at a scene in fixed steadiness (as opposed to most birds, for example[citation needed]); instead, the eyes move around, locating interesting parts of the scene and building up a mental, three-dimensional 'map' corresponding to the scene (as opposed to the graphical map of avians, that often relies upon detection of angular movement on the retina). When scanning the scene in front of you or reading these words right now, your eyes make jerky saccadic movements and your eyes stop several times, moving very quickly between each stop. We can not consciously control the speed of movement during each saccade; the eyes move as fast as they can.[3] One reason for the saccadic movement of the human eye is that the central part of the retina—known as the fovea—plays a critical role in resolving objects. By moving the eye so that small parts of a scene can be sensed with greater resolution, body resources can be used more efficiently.
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Re: saccade
by nerd crusher Sun Aug 04, 2013 6:31 pm
im reading about the human immune system and it is some seriously impressive shitozzie freedom wrote:were the best
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