News tagged with visual signal
Twist-and-glow molecules aid rapid gas detection
In an emergency such as a factory fire, ascertaining which gases are present in the air is critical to preventing or minimizing poisoning (Fig. 1). This requires gas sensors that react quickly and provide ...
Jan 13, 2012 |
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New research shows how male spiders use eavesdropping to one-up their rivals
Researchers have made a new discovery into the complex world of spiders that reflects what some might perceive as similar behavior in human society. As male wolf spiders go searching for a mate, it appears they eavesdrop, ...
Jan 04, 2012 |
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Discovery alters conventional understanding of sight
A discovery by a team of researchers led by a Syracuse University physicist sheds new light on how the vision process is initiated. For almost 50 years, scientists have believed that light signals could not be initiated unless ...
Jun 23, 2011 |
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New microscope decodes complex eye circuitry (w/ Video)
The sensory cells in the retina of the mammalian eye convert light stimuli into electrical signals and transmit them via downstream interneurons to the retinal ganglion cells which, in turn, forward them to ...
Medicine & Health / Medical research
Mar 09, 2011 |
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Artificial retina helps some blind people
For two decades, Eric Selby had been completely blind and dependent on a guide dog to get around. But after having an artificial retina put into his right eye, he can detect ordinary things like the curb and ...
Medicine & Health / Medical research
Feb 14, 2011 |
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New mathematical model of brain information processing predicts some of vision peculiarities
The human retina -- the part of the eye that converts incoming light into electrochemical signals -- has about 100 million light-sensitive cells. So retinal images contain a huge amount of data. High-level ...
Medicine & Health / Medical research
Jan 28, 2011 |
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Air force flight control improvements may result from flying insect research
Flying insects' altitude control mechanisms are the focus of research being conducted in a Caltech laboratory under an Air Force Office of Scientific Research grant that may lead to technology that controls ...
Dec 06, 2010 |
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Evolutionary bestseller in image processing
The eye is not just a lens that takes pictures and converts them into electrical signals. As with all vertebrates, nerve cells in the human eye separate an image into different image channels once it has been ...
Medicine & Health / Neuroscience
Nov 10, 2010 |
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Ecologists get fish eye view of sexual signals
Carotenoid pigments are the source of many of the animal kingdom's most vivid colours; flamingos' pink feathers come from eating carotenoid-containing shrimps and algae, and carotenoid colours can be seen among garden birds ...
Nov 10, 2010 |
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Brain powered robot
(PhysOrg.com) -- A squat, circular robot scurries along the floor of a laboratory, moving left, then right, then left again, before coming to a stop. A Northeastern University student researcher commands the ...
Jun 01, 2010 |
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Funnel vision: New info about how cells in the eye help guide light into the retina
The eyes are marvelous instruments for converting outside reality into images lodged inside our brains. A new study of the retina, the light-sensitive region at the back of the eye, solves a mystery as to ...
May 09, 2010 |
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New method reveals how individual nerve cells process visual input
Pioneering a novel microscopy method, neuroscientist Arthur Konnerth and colleagues from the Technische Universitaet Muenchen (TUM, Germany) have shown that individual neurons carry out significant aspects of sensory processing: ...
Medicine & Health / Medical research
Apr 29, 2010 |
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Research reveals that temporary hearing deprivation can lead to 'lazy ear'
Hearing scientist Daniel Polley, Ph.D., an investigator at Massachusetts Eye and Ear Infirmary's Eaton-Peabody Laboratories of Auditory Physiology, has gained new insight into why a relatively short-term hearing deprivation ...
Medicine & Health / Neuroscience
Mar 10, 2010 |
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Bees show off the perfect landing
(PhysOrg.com) -- Honey bees undergo a sudden transition from speeding aircraft to hovering helicopter as they perform the delicate art of landing on a flower.
Dec 23, 2009 |
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Stanford researchers develop the next generation of retinal implants
(PhysOrg.com) -- A team of Stanford researchers has developed a new generation of retinal implants that aims to provide higher resolution and make artificial vision more natural.
Medicine & Health / Medical research
Dec 10, 2009 |
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