HOME >> BIOLOGY >> NEWS
New slant on vision research: Neurons sensitive to viewing angle

MINNEAPOLIS / ST. PAUL--Mistakes made by human subjects in identifying the facing direction of faces, cars or meaningless objects have yielded evidence that the brain contains nerve cells, or neurons, whose job is to encode the viewing angle of objects. It is well known that certain neurons respond to color, motion, edges and other aspects of our environment. Now, University of Minnesota researchers have found that our visual cortex contains neurons that tell us, for example, whether a face is turned in our direction or not. The work adds to knowledge of how the brain collects and processes visual information leading to the recognition of objects, and it may inform the design of machine vision. The study will be published in the March 3 issue of the journal Neuron.

The brain relies on millions of neurons to report the visual elements of our environment. But, for example, if every neuron geared to motion fired in response to any motion whatsoever, then we couldn't tell whether a train was chugging into the distance or bearing down on us. Instead, to gain a complete picture of the world, our brains appear to contain separate, but physically intertwined, populations of neurons that respond to only one small aspect of our environment. The brain then bases its interpretation of images largely on which neurons fire.

"The issue is, what is the underlying neural mechanism that supports the ability to recognize objects viewed from different angles?" said Sheng He, associate professor of psychology, who directed the study. "This study supports the idea that we have explicit representations in our brains for specific views of objects." The study was carried out jointly with Fang Fang, a graduate student in He's laboratory.

The researchers presented volunteers with the image of a face, a car or a meaningless geometric object on the computer. In each case, the first image--called the adapting image--was turned to one side. After a very brief pause,
'"/>


2-Mar-2005


Page: 1 2 3

Related biology news :

1. A unique arrangement for egg cell division
2. Research shows NPD1 protects a key component of vision
3. Researchers find pathway that controls cell size and division
4. Major breakthrough in understanding how HIV interferes with infected cell division
5. Color vision drove primates to develop red skin and hair, study finds
6. UF researchers awaken vision cells in blind mice
7. Berkeley Lab Life Sciences division awarded NIH grants for fruit fly, nematode studies
8. Stem cell therapy shows promise for rescuing deteriorating vision
9. Genetic studies endow mice with new color vision
10. Making mice with enhanced color vision
11. Researchers at IRB Barcelona discover a new mechanism that regulates stem cell division

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/5/2018)... Columbia (PRWEB) , ... December 05, 2018 , ... ... Royal Society of Medicine’s Photodynamic Therapy symposium 2018, London, England. The 2018 PDT ... the scientific basis of PDT and its benefits in clinical practice across a ...
(Date:12/5/2018)... ... December 04, 2018 , ... ... diagnostics companies, announces the placement of Michael Mercer at Karius, Inc. as Chief ... Mr. Mercer will be based at Karius' headquarters in Redwood City, California and ...
(Date:12/5/2018)... ... December 04, 2018 , ... ... oligo synthesizer, the Dr. Oligo 192c, built on Biolytic’s Molecule Synthesis Platform. ... have allowed them to become the world’s fastest in oligonucleotide synthesis, the 192c ...
Breaking Biology News(10 mins):
(Date:11/20/2018)... ... ... Dr. Steven White and Dr. Brad Haines invite new and existing patients ... common infection, left untreated, can be destructive to oral and overall health. With a ... laser dentistry, Drs. White and Haines are uniquely qualified to diagnose and treat all ...
(Date:11/13/2018)... ... 13, 2018 , ... Aditya Humad, Managing Partner of ... asserts it is still trending upward with growing valuations based on a largely ... consolidation, pricing pressure and increased competition as reasons often cited by institutional investors ...
(Date:11/9/2018)... ... November 08, 2018 , ... ... adopted a machine-learning powered approach to increasing recovery rates by creating a comprehensive ... Intelligent Collections (AIC) product developed by NLP Logix, a Jacksonville, Florida-based AI solutions ...
(Date:11/5/2018)... ... November 05, 2018 , ... ... higher education center to increase access to science research and education in the ... and Technology (CREST) aims to provide access to STEM-based undergraduate and graduate degree ...
Breaking Biology Technology:
Cached News: