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Latest Visual perception Stories

Snake Eyes: Threats Cause Change In Blood Flow To The Eyes In Snakes
2013-11-05 04:13:07

April Flowers for redOrbit.com - Your Universe Online Snakes can optimize their vision when they perceive a threat by controlling the blood flow to their eyes, according to a new study from the University of Waterloo. The coachwhip snake's visual blood flow patterns change depending on what is in its environment, according to Kevin van Doorn, PhD, from the School of Optometry & Vision Science, and Professor Jacob Sivak, from the Faculty of  Science. “Each species' perception...

Power Of Eye Contact Myth Debunked
2013-10-02 14:58:25

Brett Smith for redOrbit.com - Your Universe Online You may have heard that making eye contact is an effective way to help communicate an important message or make an effective point, but new research published in the journal Psychological Science found that eye contact may actually make people more resistant to ideas that they aren’t inclined to agree with. "There is a lot of cultural lore about the power of eye contact as an influence tool," said study author Frances Chen, a...

Area Of The Brain That Creates Illusory Shapes And Surfaces Discovered By Scientists
2013-10-01 11:10:48

Vanderbilt University The logo of the 1984 Los Angeles Olympics includes red, white and blue stars, but the white star is not really there: It is an illusion. Similarly, the "S" in the USA Network logo is wholly illusory. Both of these logos take advantage of a common perceptual illusion where the brain, when viewing a fragmented background, frequently sees shapes and surfaces that don't really exist. "It's hallucinating without taking drugs," said Alexander Maier, assistant...

Study Reveals Language Influences What We See
2013-08-27 09:16:01

April Flowers for redOrbit.com - Your Universe Online People naturally assume the sense of sight takes in the world as it is, simply passing on what the eyes collect from light reflected by the objects around us. The truth is more complicated, however, as the eyes do not work alone. Our vision is not only a function of incoming visual information, but how that information is interpreted in light of other visual experiences as well. A new study from the University of Wisconsin-Madison and...

2013-08-26 13:27:36

NIH-funded study could lead to new treatments for amblyopia A study in mice reveals an elegant circuit within the developing visual system that helps dictate how the eyes connect to the brain. The research, funded by the National Institutes of Health, has implications for treating amblyopia, a vision disorder that occurs when the brain ignores one eye in favor of the other. Amblyopia is the most common cause of visual impairment in childhood, and can occur whenever there is a...

2013-08-09 10:10:37

Animal study reveals “unexpected” role of horizontal cells in photoreceptor rod and cone cell development of retina Scientists are developing a clearer picture of how visual systems develop in mammals. The findings offer important clues to the origin of retinal disorders later in life. In research published this week in the Journal of Neuroscience, University at Buffalo scientists and colleagues focused on a particular protein, called a transcription factor, that regulates gene...

2013-07-29 16:16:11

By observing the eye movements of schizophrenia patients while playing a simple video game, a University of British Columbia researcher has discovered a potential explanation for some of their symptoms, including difficulty with everyday tasks. The research, published in a recent issue of the Journal of Neuroscience, shows that, compared to healthy controls, schizophrenia patients had a harder time tracking a moving dot on the computer monitor with their eyes and predicting its trajectory....

2013-05-28 23:02:25

Eye doctor for the Florida State University football team, Robert Orsillo, OD, measures vision training success with the Diopsys® NOVA-VEP Vision Testing System. Pine Brook, NJ (PRWEB) May 28, 2013 Dr. Robert Orsillo, Optometric Physician for the Florida State University athletic program, wanted an objective way to measure his vision training techniques and turned to the Diopsys® NOVA-VEP Vision Testing System for help. As many athletes and coaches know, speed and accuracy are...

2013-05-28 21:22:51

Dr. Susana T.L. Chung receives Glenn A. Fry Lecture Award for research on 'visual plasticity' in older adults Perceptual learning techniques may provide a useful new approach to rehabilitation in patients with central vision loss–taking advantage of visual plasticity that persists even in old age, according to a special article in the June issue of Optometry and Vision Science, official journal of the American Academy of Optometry. The journal is published by Lippincott Williams...

Study Shows Where Scene Context Happens In Our Brain
2013-05-21 13:17:48

University of California - Santa Barbara In a remote fishing community in Venezuela, a lone fisherman sits on a cliff overlooking the southern Caribbean Sea. This man —— the lookout —— is responsible for directing his comrades on the water, who are too close to their target to detect their next catch. Using abilities honed by years of scanning the water's surface, he can tell by shadows, ripples, and even the behavior of seabirds, where the fish are schooling, and...


Word of the Day
callithump
  • A somewhat riotous parade, accompanied with the blowing of tin horns, and other discordant noises; also, a burlesque serenade; a charivari.
'Callithump' is a back-formation of 'callithumpian,' a 'fanciful formation' according to the Oxford English Dictionary. However, the English Dialect Dictionary, says 'Gallithumpians' is a Dorset and Devon word from the 1790s that refers to 'a society of radical social reformers' or 'noisy disturbers of elections and meetings.'
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