HOME >> BIOLOGY >> NEWS
Vision: how perceptions survive in the face of ambiguity

Because we live in a visually complex world, one of the major tasks of vision is to resolve ambiguous information into a stable image of our surroundings. By presenting subjects with differing versions of visually ambiguous images, researchers have identified the factors that are important for perceptual stabilization, a process that allows the visual system to overcome conflicting information and maintain a steady perception of an image.

Visual perception is generally accurate and stable. However, when a visual stimulus provides conflicting or insufficient information, perception can be bi-stable or even multi-stable that is, the way an image is perceived by the viewer can change or switch back and forth over time. By studying the visual system's solution when faced with such ambiguous conditions, Dr. Xiangchuan Chen from the University of Science and Technology of China and Dr. Sheng He from the University of Minnesota sought to tease out clues to the underlying mechanisms of visual perception.

Earlier research had shown that perception can be stabilized when the ambiguous visual stimuli were presented intermittently. Memory of the recent perceptual experience had been proposed to explain this stabilization effect. But the nature of this "perceptual memory" has remained unclear.

In the new work, Drs. Chen and He showed that the mechanism responsible for perceptual stabilization was independent of the memory of object identity, including various qualities possessed by an object, such as color. Using a rotating cylinder image that prompts bi-stable perception, they showed that changing the color, the moving speed of the dots on the cylinder, the size, or the stereo depth of the cylinder had no or minimal effect on the perceptual stabilization of the rotating cylinder. In contrast, stabilization depended on the stimulus location where in the visual field the object fell.

In a second set of tests, ambiguity in the pres
'"/>

Contact: Heidi Hardman
hhardman@cell.com
617-397-2879
Cell Press
7-Jun-2004


Page: 1 2

Related biology news :

1. New physical activity opinion survey demonstrates perceptions do not meet reality
2. New discovery may help transplants survive
3. Chipmunks descended from ancestors that survived last ice age, scientists say
4. Helping coral reefs survive climate change
5. Mechanism that enables fetus to survive in mother under study
6. Common microbes survive pressures equal to those found at 50 kilometers inside the Earths crust
7. Rock-eating microbes survive in deep ocean off Peru
8. Hitchhiking molecules could have survived fiery comet collisions with Earth, UC Berkeley experiment shows
9. Helping energy conservation projects survive the budget axe
10. Deadly to cattle and humans, prions may help other organisms survive, researchers find
11. Life in the inferno: researchers identify factors that determine where microorganisms can survive in the hellish world deep underground

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Vision how perceptions survive the face ambiguity

(Date:9/2/2015)... FELTON, California , September 2, 2015 /PRNewswire/ ... with the security purpose implied in a system ... hand geometry, voice, signature, iris, vein, DNA and ... crimes has forced to develop such system which ... by username, password, PIN, Patterns and tokens are ...
(Date:8/31/2015)... , Aug. 31, 2015 Research and Markets ... "Saudi Arabia Biomedical Sensors Market - Growth, Trends ... The Saudi Arabia Biomedical Sensors market is ... of 3.64% over the period 2014-2020 The ... to the genetic formulation of each individual. These sensors ...
(Date:8/25/2015)... CITY and BELLEVUE, Wash. ... leader in advanced robotic systems, announced today it will ... unmanned ground vehicle (UGV), at the National Tactical Officers ... The Guardian S is the first-ever ... culmination of years of research and in-field trials and ...
Breaking Biology News(10 mins):Biometrics Technology Market is Expected to Reach $13.8 Billion by 2015: Hexa Research Inc. 2Biometrics Technology Market is Expected to Reach $13.8 Billion by 2015: Hexa Research Inc. 3Biometrics Technology Market is Expected to Reach $13.8 Billion by 2015: Hexa Research Inc. 4Saudi Arabia Biomedical Sensors Market Report 2015 - Growth, Trends & Forecasts (2014-2020) 2Sarcos to Debut First-of-its-Kind Snake Robot 2Sarcos to Debut First-of-its-Kind Snake Robot 3
(Date:9/2/2015)... 2015  Neurotech Pharmaceuticals, Inc., announced today the ... Phase 2 clinical trial of NT-503 Encapsulated Cell ... subfoveal choroidal neovascularization secondary to age related macular ... endothelial growth factor (VEGF) receptor protein continuously produced ... landmark proof-of-concept study will evaluate NT-503 ECT as ...
(Date:9/2/2015)... , Sept. 2, 2015 Aytu BioScience, Inc. ... treatments for urological and related conditions, announced today that ... private placement convertible note financing, raising a total of ... totaling $3.175 million. Josh Disbrow ... this private placement are intended to be used to ...
(Date:9/2/2015)... TEL-AVIV, Israel , September 2, 2015 /PRNewswire/ ... BLGTY, TASE: BOLT) ("BioLight" or the "Company"), a ... innovations in ophthalmology and cancer diagnostics, announced today ... treatment of glaucoma will be delivered at the ... of the European Society of Cataract & Refractive ...
(Date:9/2/2015)... , September 2, 2015 ... des Wettbewerbs BeHEARD von 2015 bekanntgeben zu können. ... Rare Genomics Institute. Biovista unterstützt mit ... für die Behandlung anderer Krankheiten als denen, für ... Laffoon und sein Team bei der Wylder ...
Breaking Biology Technology:Neurotech Announces First Patient Enrolled in Novel Anti-VEGF Encapsulated Cell Therapy Study 2Neurotech Announces First Patient Enrolled in Novel Anti-VEGF Encapsulated Cell Therapy Study 3Neurotech Announces First Patient Enrolled in Novel Anti-VEGF Encapsulated Cell Therapy Study 4Aytu BioScience Completes $5.175 Million Private Placement 2Aytu BioScience Completes $5.175 Million Private Placement 3Presentations to Highlight BioLight's IOPtiMate[TM] System at Upcoming European Ophthalmology Conferences 2Presentations to Highlight BioLight's IOPtiMate[TM] System at Upcoming European Ophthalmology Conferences 3Biovista sponsert die Forschung von Wylder Nation Foundation zum Thema Mangel an saurer Sphingomyelinase 2
Cached News: