HOME >> BIOLOGY >> NEWS
Brains response to visual stimuli helps us to focus on what we should see, rather than all there is to see

La Jolla, CA - Delving ever deeper into the intricate architecture of the brain, researchers at The Salk Institute have now described how two different types of nerve cells, called neurons, work together in tiny sub-networks to pass on just the right amount and the right kind of sensory information.

Their study, published online by Nature Neuroscience, depicts how specific types of inhibitory neurons in the visual cortex of a rat brain are wired to, and "talk" with, discrete excitatory neurons. They also show how that "conversation," aimed at keeping the right balance of chemical signals, often excludes surrounding neurons.

"The inhibitory neurons are not just brakes, they can also be used to steer." said co-author Ed Callaway, Ph.D., associate professor in Salk's Systems Neurobiology Laboratories. For example, in vision, inhibitory responses in the visual cortex help people to focus on what they want to see, rather than all there is to see, he explained.

This new study is filling in the picture of how the brain is organized into "smart" efficient networks, and researchers hope that details of this complex design might, one day, uncover the roots of such neurological diseases as schizophrenia.

"We know already that schizophrenia is a problem with organization of inhibitory circuits of neurons, and now we are uncovering how these specialized nerve cells work together and with other neurons," Callaway explained.

"By understanding the brain in finer and finer resolution, we can then trace what happens when these neural circuits are mis-wired," he added.

The Nature Neuroscience report is the latest published study in a series by Callaway and first author Yumiko Yoshimura, of both Salk and Japan's Nagoya University, that reveal how neurons in the brain's cortex are finely wired to pass on thought and perception.

The brain cortex is the folded tissue that looks like the outside of cauliflower, but which in humans has
'"/>

Contact: Cathy Yarbrough
yarbrough@salk.edu
858-453-4100 x1290
Salk Institute
21-Oct-2005


Page: 1 2 3

Related biology news :

1. Brains reflect sex differences
2. Brainstem blocks pain to protect key behaviors
3. MIT model could predict cells response to drugs
4. Strength of connections between brain regions may affect an adolescents response to peer influence
5. A friendly foe -- Bacteria residing in the gut boost immune response to tumors
6. Identified main genetic variants involved in response to HIV
7. Minister Lunn announces $39.6M for next phase of mountain pine beetle response
8. Columbine flowers develop long nectar spurs in response to pollinators
9. PET accurately identifies esophageal cancer patients positive responses to chemotherapy
10. Every moment counts: Predicting treatment responses earlier for brain tumor patients
11. FDG-PET imaging clearly predicts lung cancer patients response to chemotherapy

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


(Date:10/4/2017)... Solutions, a global clinical research organization (CRO), announces the launch of ... 4, 2017. Shadow is designed to assist medical writers and biometrics ... the European Medicines Agency (EMA) in meeting the requirements for de-identifying ... ... ...
(Date:7/20/2017)... DAL ) customers now can use fingerprints instead of their ... (DCA). ... launches biometrics to board aircraft at Reagan Washington National Airport ... Delta,s biometric boarding pass experience that launched in May at ... process to allow eligible Delta SkyMiles Members who are enrolled in CLEAR ...
(Date:6/14/2017)... 15, 2017  IBM (NYSE: IBM ) is introducing several ... dedicated to developing collaboration between startups and global businesses, taking ... During the event, nine startups will showcase the solutions they ... industries. France is ... with a 30 percent increase in the number of startups ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... October 11, 2017 , ... Disappearing forests and increased emissions are the main ... people each year. Especially those living in larger cities are affected by air pollution ... of the most pollution-affected countries globally - decided to take action. , “I knew ...
(Date:10/11/2017)... Florida (PRWEB) , ... October 11, 2017 , ... ... Drug Administration (FDA) has granted orphan drug designation to SBT-100, its novel anti-STAT3 ... for the treatment of osteosarcoma. SBT-100 is able to cross the cell membrane ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... antibody-drug conjugate (ADC) therapeutics, today confirmed licensing rights that give it exclusive ... a technology developed in collaboration with Children’s Hospital Los Angeles (CHLA). ...
(Date:10/10/2017)... ... ... Dr. Bob Harman, founder and CEO of VetStem Biopharma, Inc. ... event entitled “Stem Cells and Their Regenerative Powers,” was held on August 31st, ... was joined by two human doctors: Peter B. Hanson, M.D., Chief of Orthopedic Surgery, ...
Breaking Biology Technology:
Cached News: