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Latest Vision Centre Stories

2013-07-16 10:41:42

Ants keep a collection of ‘snapshots’ taken close to the nest so they can find their way home from unfamiliar locations. This is the discovery of scientists at The Vision Centre (VC) and the Research School of Biology at the Australian National University, who found that Australian jack jumper ants, just by briefly scanning the panorama, can quickly determine where their nest is from 15 meters away, even from areas that they have never visited before....

2013-01-02 10:42:12

Scientists have developed a quick, easy and cheap vision test to find out which part — and how much — of the brain of a stroke victim has been damaged, potentially enabling them to save more lives. The test requires patients to look into a device for about ten minutes, enabling it to be used in the early stages of a stroke — even if the patient cannot move their limbs or speak. This can help doctors diagnose and treat the stroke quickly and accurately, which is vital,...

Color Blindness Linked To Eye Cells Not Brain
2012-09-20 15:52:25

Alan McStravick for redOrbit.com - Your Universe Online Over the past few years, several advances have been made in the field of ocular health.  Much of the research in color vision deficiencies has been conducted in Australia by researchers at The Vision Centre and The University of Sydney. Only a few months back, a major leap forward was achieved in the area of cortical color blindness caused by a traumatic brain injury. That study, like most others, focused on searching the...

How Your Eyes Deceive You
2012-04-24 05:02:24

People rely on their eyes for most things they do — yet the information provided by our visual sensing system is often distorted, unreliable and subject to illusion. Researchers at The Vision Centre, Australia, are throwing new light on the tricks the brain plays on its owner as it struggles to make sense of the visual and other sensory signals it constantly receives. “We tend to regard what we see as ℠the real world´,” says Dr Isabelle Mareschal, a...

Robot Aircraft Teach Themselves Which Way Is Up
2011-12-09 08:08:16

[ Video 1 ] | [ Video 2 ] Australian vision scientists today unveiled a novel way to help pilotless aircraft accurately determine their heading and orientation to the ground - by imitating how insects do it. The technology can improve the navigation, flight characteristics and safety for civil and military aircraft, as well as pilotless drones says Mr Richard Moore, a researcher at The Vision Centre and The Queensland Brain Institute at the University of Queensland. “UAVs...

How Crabs Avoid Getting Eaten
2011-11-26 05:08:41

Despite their simple compound eyes crabs have evolved a smart way to tell the difference between friend and foe, new scientific research has revealed. Scientists from The Vision Centre have found that fiddler crabs quickly learn to recognize if an approaching creature is a threat, a mate or a harmless passer-by - according to its direction of approach. “Fiddler crabs have extremely poor sight, with no depth perception and no ability to see in detail,” says Ms Chloe...

How Do Birds Avoid Crashes?
2011-10-28 04:15:45

The secret of how birds zip flawlessly through narrow spaces without crashing into obstacles has been unlocked by Australian scientists. Their discovery could be used to design ℠bird-safe´ buildings and windmills, and improve the versatility of pilotless aircraft. Researchers at The Vision Centre have found that birds weave rapidly and safely through dense forests and narrow corridors by using their eyes to sense the speed of background image flow on both sides and adjust...

2011-08-16 15:17:43

An unexpected discovery has led scientists to open an intriguing new window into the human brain, via the visual system. Their finding may have implications for better understanding of states such as sleep, epilepsy and anaesthesia say the research team leaders Dr Sam Solomon and Professor Paul Martin of The Vision Centre and The University of Sydney. Potentially it could open up a new pathway for manipulating brain rhythms to manage disorders such as insomnia and epilepsy, the team speculate...

2011-08-02 12:26:08

Nocturnal bulldog ants are not daunted by low temperatures or neighbouring ants, adopting a clockwork-like hunting schedule throughout the year, a new study reveals. Research conducted by The Vision Centre and The Australian National University shows that the nocturnal insects' activity times are not influenced by seasons, temperature tolerance or competition with their neighbours, but by sunset time. "Our previous observations had shown that different species of bulldog and jack jumper ants...

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2011-06-14 09:57:28

Bees use their eyes to tell them how best to streamline their bodies for rapid flight, a world first study shows. Scientists at The Vision Centre have fooled the honeybee into revealing its flying secrets by tethering the creature and running background images past its eyes. This tricks the bee into thinking it is "Ëœflying' and it moves its body into a posture for rapid flight "“ even though both it and the air are still. The research indicates that vision is an important...


Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
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