Navigation Links
'Brain waves' challenge area-specific view of brain activity
Date:3/20/2013

Our understanding of brain activity has traditionally been linked to brain areas when we speak, the speech area of the brain is active. New research by an international team of psychologists led by David Alexander and Cees van Leeuwen (KU Leuven University of Leuven) shows that this view may be overly rigid. The entire cortex, not just the area responsible for a certain function, is activated when a given task is initiated. Furthermore, activity occurs in a pattern: waves of activity roll from one side of the brain to the other.

The brain can be studied on various scales, researcher David Alexander explains: "You have the neurons, the circuits between the neurons, the Brodmann areas brain areas that correspond to a certain function and the entire cortex. Traditionally, scientists looked at local activity when studying brain activity, for example, activity in the Brodmann areas. To do this, you take EEG's (electroencephalograms) to measure the brain's electrical activity while a subject performs a task and then you try to trace that activity back to one or more brain areas."

In this study, the psychologists explore uncharted territory: "We are examining the activity in the cerebral cortex as a whole. The brain is a non-stop, always-active system. When we perceive something, the information does not end up in a specific part of our brain. Rather, it is added to the brain's existing activity. If we measure the electrochemical activity of the whole cortex, we find wave-like patterns. This shows that brain activity is not local but rather that activity constantly moves from one part of the brain to another. The local activity in the Brodmann areas only appears when you average over many such waves."

Each activity wave in the cerebral cortex is unique. "When someone repeats the same action, such as drumming their fingers, the motor centre in the brain is stimulated. But with each individual action, you still get a different wave across
'/>"/>

Contact: David Alexander
david.alexander@ppw.kuleuven.be
32-016-326-023
KU Leuven
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Toxicity map of brain may help protect cognition for cancer patients
2. AgedBrainSYSBIO, a medium-scale research initiative against neurodegenerative diseases
3. Public lecture at UC Riverside to address brain-mapping project
4. Brain tumor cells killed by anti-nausea drug
5. Immortality gene mutation identifies brain tumors and other cancers
6. Similar neuro outcomes in preterm infants with low-grade brain bleeding as infants with no bleeding
7. Univ. of MD School of Medicine finds depression stems from miscommunication between brain cells
8. Penn research shows that suppressing the brains filter can improve performance in creative tasks
9. Outside the box: UCLA uses brain aneurysm treatment to stop irregular heart rhythms
10. Study: Dynamic new software improves care of aging brain
11. New early warning system for the brain development of babies published in video journal
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/22/2014)... (PRWEB) December 22, 2014 Sagacious Consultants, ... add a subscription option to their ad hoc report ... writing services. Customers can sign up for an annual ... hours each month at a deeply discounted hourly rate. ... and each has a progressively discounted rate. Subscription hours ...
(Date:12/22/2014)... Dec. 19, 2014 (HealthDay News) -- U.S. and state ... caramel apples that has killed at least four people ... should not eat any commercially produced, prepackaged caramel apples ... Disease Control and Prevention said in a news release. ... people had been infected with the outbreak strains of ...
(Date:12/22/2014)... 2014 Explorys, the leader in big ... leadership team: Greg Yarrington as Vice President of Operations, ... Wells as Vice President of Solutions. These new leaders ... jobs in 2015 to support client demand for the ... offerings, and growth of its partner network. , ...
(Date:12/22/2014)... Pasadena, CA (PRWEB) December 22, 2014 ... is now offering consultations for sleep apnea. Drowsy drivers ... crashes than drivers who are well-rested, and some experts ... on the roads as intoxicated drivers. Unfortunately, millions of ... to the American Academy of Sleep Medicine, about 18 ...
(Date:12/22/2014)... Christmas is days away, and last minute ... easy solution that will please: the Sublime Gift Card ... from $25 up to $350," says Kathy Heshelow, founder of ... a wide array of skin care products and Skin Brushes." ... dates. , Gift delivery past shipping deadlines, or those ...
Breaking Medicine News(10 mins):Health News:Sagacious Consultants’ New Subscription Packages Offer Customers Additional Report Writing Options 2Health News:Sagacious Consultants’ New Subscription Packages Offer Customers Additional Report Writing Options 3Health News:CDC Warns of Listeria Danger From Caramel Apples 2Health News:Explorys Continues to Experience Rapid Growth, Adds Three Healthcare IT Executives to Its Leadership Team 2Health News:Explorys Continues to Experience Rapid Growth, Adds Three Healthcare IT Executives to Its Leadership Team 3Health News:Pasadena Dentist, Dr. Marine Martirosyan, Now Offers Consultations for Sleep Apnea 2
... Calif., July 8 ChemoCentryx, Inc. today announced ... Officer, will give a keynote lecture at The 9th World ... "Treating Inflammation by Inhibition of Chemokine Receptors: Practical Requirements and ... given on Thursday, July 9, 2009 at 9:00 am local ...
... Save Roughly $3,000 A Year By Switching From Expensive Brand ... Hyperactivity Disorder (ADHD) , , YONKERS, N.Y., July 8 ... Buy Drugs report, parents should be skeptical if their doctors ... of attention deficit hyperactivity disorder (ADHD). Free samples can ...
... Switzerland, 8 July 2009 - The International Diabetes Federation ... World Heart Federation (WHF) called today on the UN,s ... to avert the fastest growing threat by non-communicable diseases ... cardiovascular disease, diabetes, cancer and chronic respiratory disease, cause ...
... BETHEL, Conn., July 8 MedClean Technologies, Inc. (OTC Bulletin ... to exchange all of the Company,s existing Common Stock Purchase ... August 29, 2008 ("Existing Warrants") for newly issued Common Stock ... per share, exercisable for one-half the original number of shares ...
... July 8 Universal Health Services, Inc. (NYSE: UHS ... its Board of Directors. He becomes the eighth member of the ... of Hayground Cove Capital Partners LLC, in New York, NY, a ... that, Mr. Silvers was a Vice President at Fortress Investment Group ...
... , , , HARRISBURG, Pa., July 8 ... his office, the departments of Health and Education, and the ... H1N1 Influenza Preparedness Summit in Maryland on July 9. , ... information that will be used in Pennsylvania,s ongoing efforts to ...
Cached Medicine News:Health News:ChemoCentryx to Present at The 9th World Congress on Inflammation in Tokyo, Japan 2Health News:Consumer Reports to Parents: Think Twice About Free Prescription ADHD Drug Samples for Your Children 2Health News:Consumer Reports to Parents: Think Twice About Free Prescription ADHD Drug Samples for Your Children 3Health News:Consumer Reports to Parents: Think Twice About Free Prescription ADHD Drug Samples for Your Children 4Health News:The next health tsunami: Noncommunicable diseases 2Health News:MedClean Technologies Announces Results of Private Exchange Offer 2Health News:Rendell Administration Officials to Participate in National Flu Summit 2
(Date:12/19/2014)... , Dec. 19, 2014  Newport Corporation ... Siddhartha Kadia, Ph.D. has joined the company,s Board ... Executive Officer and a director of Evans Analytical ... testing, evaluation and analytical services to companies in ... Prior to joining Evans Analytical Group, Dr. Kadia ...
(Date:12/19/2014)... 19, 2014 In today,s increasingly global ... presence to reflect the needs of a global ... meet the needs of key stakeholders while recognizing ... According to recent research by benchmarking firm, ... participating companies averaged more than $100,000 in annual ...
(Date:12/19/2014)... YORK , Dec. 18, 2014 Somewhere ... addressing hearing health was forgotten. But Audicus , ... to hear better this new year. Hearing ... facing the aging population, though it is often unaddressed. ... in four has a hearing aid, mainly due to ...
Breaking Medicine Technology:Siddhartha Kadia, Ph.D. Joins Board of Directors of Newport Corporation 2Building a Best-in-Class Pharma Global Brand Website 2Audicus Will Help People Resolve to Hear Better in 2015 2
SOLOS Endoscopy shares your commitment to provide every patient with the highest quality care available through our ongoing research and development of advanced surgical instruments and diagnostic so...
Ethicon Endo-Surgery provides disposable handheld instruments that provide reliable, precise performance every time. Our handheld instruments come in 5mm and 10mm sizes....
... The Auto Suture™ ... inclusive of five (5) ... application in a variety ... urologic, colorectal and other ...
The ENDO MINI-RETRACT™ 5 mm instrument has application in a variety of gynecologic, abdominal, urologic, thoracic and endoscopic procedures for temporary retraction of tissue and small tubular ...
Medicine Products: