HOME >> MEDICINE >> NEWS
New approach to imaging separates thought from perception

Miami Beach, Oct. 24, 1999 -- Using a novel approach to imaging, researchers have discovered that thinking about moving objects pre-activates areas of the brain's motion detection system before any moving objects appear. These areas would hold our expectations on-line as we prepare to cross a busy street, return a tennis serve or catch a falling child.

"This pre-activation may tune the motion detection pathway, allowing us to respond more strongly and selectively when an anticipated object appears," says Gordon L. Shulman, Ph.D., research scientist in neurology at Washington University School of Medicine in St. Louis.

Shulman and colleagues report their findings in the November issue of the Journal of Neuroscience. They will discuss additional experiments Oct. 24 and 26 during the annual meeting of the Society for Neuroscience in Miami Beach, Fla. "You could use this method anytime you wanted to separate the processes that prepare you to do a task from those involved in executing that task," Shulman says.

A major stumbling block has hampered attempts to understand how cognitive expectations such as goals, memories and thoughts influence the way we see the world. Because images obtained through positron emission tomography (PET) could not be made in less than 40 seconds, they merged expectation with perception. But the advent of functional magnetic resonance imaging (fMRI) cut the time scale to a few seconds. Using BOLD fMRI, Shulman and colleagues have devised a way to obtain separate images of expectation and perception during a single trial. For example, they can obtain one set of images while a person anticipates a visual stimulus and a second set when the stimulus appears.

"This enhanced precision in human neuroimaging allows us to track the sequential involvement of different areas of the brain at different times during a task," says co-author Maurizio Corbetta, M.D., assistant professor of neurology,
'"/>

Contact: Linda Sage
sage@medicine.wustl.edu
314-286-0119
Washington University School of Medicine
23-Oct-1999


Page: 1 2 3

Related medicine news :

1. OHSU scientists develop MRI approach to improve breast cancer detection
2. Trial reveals safer and simpler approach to treating children with cystic fibrosis
3. Services for children: Training needed to tackle complexity of new labours joined-up approach
4. Government approach to cutting hospital stays may be misleading
5. Is the 3 by 5 initiative the best approach to tackling the HIV pandemic?
6. Animal study suggests safer immunization approach to Alzheimers
7. Worldwide approach tackles kidney disease
8. Texas Childrens Hospital specialists say proactive approach best defense against flu season
9. Endoscopic approach best for repairing bone defect between brain, nasal cavity
10. University of Pittsburgh approach has lung recipients taking far fewer drugs
11. Tissue involved in brain development may offer new approach to stroke treatment

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


(Date:9/21/2017)... ... September 21, 2017 , ... In ... and Clark College Emeritus Professor of Education Gregory A. Smith examines student privacy ... Asleep at the Switch: Schoolhouse Commercialism, Privacy, and the Failure of Policymaking . ...
(Date:9/20/2017)... CHARLOTTE, NC (PRWEB) , ... September 20, 2017 ... ... for Transformation and Centers of Excellence (CoE) with the latest Artificial Intelligence (AI) ... newly designed presence offers quick and easy access to essential information that offers ...
(Date:9/20/2017)... , ... September 20, 2017 , ... ... one of the Best Places to Work in the Research Triangle for 2017. ... Once nominated, a company had to meet a threshold in employee participation--a percentage ...
(Date:9/20/2017)... ... September 20, 2017 , ... Doctors on Liens has added ... network of medical professionals working on a personal injury lien basis. Founded by Dr. ... brings these esteemed doctors’ vast experience with orthopedic injuries to patients in the Inland ...
(Date:9/20/2017)... ... 20, 2017 , ... Mirror Mirror Beauty Boutique is excited ... This Autumn with CoolSculpting®. Scheduled for Thursday, September 28th, the afternoon will include ... Beauty Boutique is Houston’s largest CoolSculpting provider, holding the prestigious title ...
Breaking Medicine News(10 mins):
(Date:9/7/2017)... , Sept. 7, 2017 Caris Life ... on fulfilling the promise of precision medicine, today ... the benefits of its molecular profiling approach in ... comprehensive genomic profiling plus (CGP+) with Caris Molecular ... tumor on a molecular level, leading to more ...
(Date:9/7/2017)... Ind. , Sept. 7, 2017  Zimmer Biomet ... in musculoskeletal healthcare, today announced that it will be ... Global Healthcare Conference at the Grand Hyatt hotel in ... 11, 2017 at 11:40 a.m. Eastern Time. ... via Zimmer Biomet,s Investor Relations website at http://investor.zimmerbiomet.com ...
(Date:9/6/2017)... , Sept. 6, 2017  Robert G. Szewc, M.D., ... Professional Member in recognition of his contributions to the ... as a Nephrologist at the practice of Kidney and ... kidney care and hypertension solutions. He has worked in ... of career experience, as well as expertise in kidneys, ...
Breaking Medicine Technology:
Cached News: