HOME >> BIOLOGY >> NEWS
Scientist detail how brain regulates sensory information

An unusual collaboration between physicists at the University of California, San Diego and psychologists at Vanderbilt University has revealed how the brains of higher animals and probably humans integrate sensory information and motor control signals in way that allows us to heighten our senses to smell a faint odor, visualize an individual in a crowd, or even discern the sounds of a single instrument in an orchestra.

The scientists' findings about how the brain regulates sensory inputs and motor outputs to accomplish those tasks are detailed in the June 13 issue of the journal Neuron. Their discovery could have a direct application to future efforts to help victims of stroke or spinal injury with "neuroprosthetics" that might move artificial limbs or other procedures that might lead to the reestablishment of motor control in stroke victims.

According to the researchers, how we filter out much of the of sensory inputs we're not interested in to focus on a specific smell, taste or sound is a consequence of the way the sensory and motor cortices of our brain are hardwired to handle sensory inputs. This subconscious mechanism enables us to immediately send motor signals to our eyes, ears, nose and hands to enhance our perception of the sensory information that we are interested in.

"The act of sensation is inexplicably tied to that of motor control," says David Kleinfeld, a professor of physics at UCSD and one of the leaders of the research collaboration. "If we spot a friend in the distance, our eyes move to track him or her. If we caress an object with our fingers, our hand moves to optimize the sense of texture. If a new odor permeates a room, we sniff to sample and identify the smell. In all of these processes, we separate the sensory input from the motor component that directs and defines the sensation."

In their experiments, the scientists discovered the specific mechanisms by which sensory signals are converted into motor
'"/>

Contact: Kim McDonald
kimmcdonald@ucsd.edu
858-822-0342
University of California - San Diego
12-Jun-2002


Page: 1 2 3

Related biology news :

1. Scientists to prototype cyberinfrastructure for research and education access to ocean observatories
2. Scientists sequence genome of kind of organism central to biospheres carbon cycle
3. Scientists find nanowires capable of detecting individual viruses
4. Scientists discover potential new way to control drug-resistant bacteria
5. Scientists explore genome of methane-breathing microbe
6. Scientists decipher genetic code of biothreat pathogen
7. Stuck on you: Scientists lay bare secrets of bacterial attachment proteins
8. Scientists discover proteins involved in spread of HIV-1 infection
9. Scientists fear new Ebola outbreak may explain sudden gorilla disappearance
10. Scientists reinvent DNA as template to produce organic molecules
11. Scientists visualise cellular handmaiden that restores shape to proteins

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


(Date:9/30/2019)... , ... September 30, 2019 , ... ... focused on molecular manufacturing and other transformative technologies, announced the winners for the ... Experiment and the other for Theory in nanotechnology/molecular manufacturing. , Established in 1993 ...
(Date:9/30/2019)... ... September 30, 2019 , ... As human induced pluripotent stem ... for studying the development and diseases of the human heart, there is an increasing ... progeny heart muscle cells to be clearly and easily recorded. A study released today ...
(Date:9/30/2019)... Calif. (PRWEB) , ... September ... ... a leading think tank, research, and public interest organization focused on molecular ... Distinguished Student Prize. , The Award recognizes the College graduate or undergraduate ...
Breaking Biology News(10 mins):
(Date:10/3/2019)... ... October 01, 2019 , ... Today ... itself, announced the midway point of its randomized research trial for individuals with ... to measure the efficacy of a non-invasive technology which compares tones delivered to ...
(Date:10/3/2019)... ... October 02, 2019 , ... Murrieta Genomics , the launch ... venture capital companies in Silicon Valley at a special Life Science showcase event ... be held at the JJ Lake Business Center located at 340 E. Middlefield Road ...
(Date:10/3/2019)... ... ... Yesterday, at the 2019 meeting of Outsourcing in Clinical Trials New England ... Ph.D., discussed important design factors that currently limit the success of early stage stem ... clinical trials, in his talk Dr. Sherley focused on the highly problematic ...
(Date:9/24/2019)... ... September 24, 2019 , ... Drug resistance has been declared as one ... with MRSA becoming one of the most serious concerns. Hong Kong cannot be spared ... community-associated MRSA (CA-MRSA), or a seven-fold of the figure in 2007 – the year ...
Breaking Biology Technology:
Cached News: