Humans and animals instinctively evade rapidly approaching objects. By doing so, they avoid collisions or escape attacking predators. For this to happen, the brain must calculate the direction and speed of a stimulus in the ...
Plants & Animals
Jun 26, 2015
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Ever since the invention of the first camera obscura and the advent of photography in the 19th century, scientists have been fascinated by the use of light sensors to capture the world around us from the perspective of a ...
Engineering
Feb 18, 2015
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Professor Hannes Lohi's research group at the University of Helsinki and Folkhälsan Research Center, Finland, has identified a novel locus for glaucoma in Dandie Dinmont Terrier. The locus on canine chromosome 8 includes ...
Biotechnology
Aug 30, 2013
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(Phys.org)—In a primitive marine organism, MBL scientists find photosensitive cells that may be ancestral to the "circadian receptors" in the mammalian retina.
Cell & Microbiology
Feb 6, 2013
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Better known as the light sensor that sets the body's biological clock, melanopsin also plays an important role in vision: Via its messengers-so-called melanopsin-expressing retinal ganglion cells, or mRGCs-it forwards information ...
Cell & Microbiology
Dec 7, 2010
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Scientists at the California Institute of Technology (Caltech) have created a remote-controlled robot that is able to simulate the "visual" experience of a blind person who has been implanted with a visual prosthesis, such ...
Computer Sciences
Oct 19, 2009
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