Navigation Links
Faulty 'off-switch' stops children with ADHD from concentrating
Date:1/6/2011

on.

Previous studies have shown that children with ADHD have difficulty in 'switching-off' the default mode network (DMN) in their brains. This network is usually active when we are doing nothing, giving rise to spontaneous thoughts or 'daydreams', but is suppressed when we are focused on the task before us. In children with ADHD, however, it is thought that the DMN may be insufficiently suppressed on 'boring' tasks that require focused attention.

The MIDAS group researchers, which included Dr Martin Batty and Dr Elizabeth Liddle, compared brain scans of 18 children with ADHD, aged between nine and 15 years old, against scans of a similar group of children without the condition as both groups took part in a task designed to test how well they were able to control their behaviour. The children with ADHD were tested when they were taking their methylphenidate and when they were off their medication. The findings are published in the Journal of Child Psychology and Psychiatry.

Whilst lying in a magnetic resonance imaging (MRI) scanner, which can be used to measure activity in the brain, the children played a computer game in which green aliens were randomly interspersed with less frequent black aliens, each appearing for a short interval. Their task was to 'catch' as many green aliens as possible, while avoiding catching black aliens. For each slow or missed response, they would lose one point; they would gain one point for each timely response.

To study the effect of incentives, the reward for avoiding catching the black alien was then increased to five points, with a five-point penalty incurred for catching the wrong alien.

By studying the brain scans, the researchers were able to show that typically developing children switched off their DMN network whenever they saw an item requiring their attention. However, unless the incentive was high, or they had taken their medication, the children with ADHD would fail to switch o
'/>"/>

Contact: Lindsay Brooke
lindsay.brooke@nottingham.ac.uk
44-115-951-5751
University of Nottingham
Source:Eurekalert  

Page: 1 2 3

Related medicine news :

1. Faulty gene stops cell antennae from transmitting
2. Web Site for Hospital Comparisons Is Faulty: Study
3. Drug Targets Faulty Process That Drives Cystic Fibrosis
4. Vaccine Stops Tumor Spread in Mice
5. Cartoon Network's MOVE IT MOVEMENT TOUR Stops in Seattle Market
6. Traditional Marketing is Dead! GLM Creates a Sales Spike in Under 60 Days Stops Business Failure; Provides Startup Funding
7. Drug That Stops Bleeding Could Save Lives
8. Art Mann stops by The Elator booth at the AVN Expo in Las Vegas
9. Success stops drug trial
10. Hemostatic powder stops bleeding ulcers: Doctor
11. Drug-like compound stops thyroid overstimulation in early NIH studies
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Faulty 'off-switch' stops children with ADHD from concentrating
(Date:12/19/2014)... 2014 (HealthDay News) -- A new study suggests a ... severe hot flashes and night sweats -- and higher ... flashes are common during menopause, affecting about 60 percent ... women after menopause, since they then face a higher ... suggest women who exhibit moderate or severe menopausal symptoms ...
(Date:12/19/2014)... HealthDay Reporter THURSDAY, Dec. ... were exposed to high levels of air pollution late in ... U.S. study suggests. Researchers found that of nearly 1,800 ... exposed to the most air pollution during pregnancy were twice ... And exposure during the third trimester, specifically, showed the strongest ...
(Date:12/19/2014)... THURSDAY, Dec. 18, 2014 (HealthDay News) -- Traveling through ... the measles virus to three others within a four-hour ... spread, a new report shows. "The exposures in ... domestic rather than an international terminal, highlighting the fact ... by Jared Vega, an infectious disease specialist at the ...
(Date:12/19/2014)... Steven Reinberg HealthDay ... If you can,t balance on one leg for at least ... Japanese researchers suggest. Difficulty standing on one leg may ... which means the risk for more serious strokes is high, ... Stroke . "Individuals showing instability while standing on one ...
(Date:12/17/2014)... Dr. Myo Nwe is the co-author of ... the Futureā€ and co-founder of the Ace Medical Weight Loss ... takes a broad look at the industry of weight loss, ... scrutiny. On film and in television shows, however, she says ... social aspects and played for basic laughs, which she believes ...
Breaking Medicine News(10 mins):Health News:Severe Hot Flashes During Menopause May Raise Hip Fracture Risk Later: Study 2Health News:Smog Exposure During Pregnancy Linked to Autism Risk 2Health News:Smog Exposure During Pregnancy Linked to Autism Risk 3Health News:Arriving Now at Gate 42: Measles 2Health News:Arriving Now at Gate 42: Measles 3Health News:Can You Balance on One Leg? You May Have Lower Stroke Risk 2Health News:Obesity Should Not Be a Hollywood Punchline, Weight Loss Doc Says 2
... HealthDay Reporter , THURSDAY, Feb. 16 (HealthDay ... struggle with heart failure, experts say new treatments have ... for these patients. "The present environment for heart ... that will truly remove the term ,failure, from the ...
... Hall Institute scientists have revealed new details about ... system, identifying in the process potential new therapeutic ... Jeff Babon and Professor Nick Nicola, from the ... respectively, study interactions between internal cell signalling proteins ...
... fracture easily. It is a major complication of spinal cord ... A new clinical trial conducted by University of Iowa researchers ... bone through programmed electrical stimulation of the muscle significantly slows ... The focus on quantifying the effective dose of load is ...
... -- In an effort to reduce and eventually eliminate cancer ... Cancer Center at Jefferson has established the Center ... Mitchell, M.D., FACP , a medical oncologist at Thomas ... Medical Oncology in the Department of Medical Oncology at Jefferson ...
... Reporter , THURSDAY, Feb. 16 (HealthDay News) -- A sweetener ... of arsenic, new research suggests. Researchers at Dartmouth College ... found in some infant formulas. Their report appears in the ... Arsenic is a natural element that can contaminate groundwater. As ...
... a free, non-promotional online program designed to support ... chronic pain. This study tested painACTION.com,s ability to ... with chronic migraine headaches. A total of 185 ... were more confident that they could prevent headaches ...
Cached Medicine News:Health News:Treatment Advances Improve the Odds for Heart Failure Patients 2Health News:Treatment Advances Improve the Odds for Heart Failure Patients 3Health News:Cell signaling discovery provides new hope for blood disorders 2Health News:High doses of 'load' slows loss of bone in spinal cord injury 2Health News:High doses of 'load' slows loss of bone in spinal cord injury 3Health News:Jefferson's Kimmel Cancer Center establishes Center to Eliminate Cancer Disparities 2Health News:Jefferson's Kimmel Cancer Center establishes Center to Eliminate Cancer Disparities 3Health News:Arsenic Might Be Found in Some Organic Foods: Study 2Health News:Arsenic Might Be Found in Some Organic Foods: Study 3Health News:painACTION.com improves migraine self-management and reduces migraine-related psychological distress 2
(Date:12/17/2014)... 17, 2014  RXi Pharmaceuticals Corporation (NASDAQ: ... discovering, developing and commercializing innovative therapies addressing major ... of enrollment in its first Phase 2a study, ... confirmed the 1-month findings that were reported in ... - http://photos.prnewswire.com/prnh/20130917/NE80755LOGO , , ...
(Date:12/17/2014)... HOUSTON , Dec. 17, 2014 ... Autism Approved ( http://bit.ly/1382OkS ) program seal ... autism community. The program highlights medical practices, materials ... considered "autism-community friendly." Children affected by ... that can be exacerbated by ingredients found in ...
(Date:12/15/2014)... , Dec. 12, 2014 Research and Markets ... addition of the "MEMS Gyroscopes Analog Devices ... report to their offering. ... for tactical grade applications made a lot of ... of reliability. They are now accepted in high-reliability ...
Breaking Medicine Technology:RXi Pharmaceuticals Announces Sustained Effect of RXI-109 at Three Months Post Scar Revision Surgery and the Completion of Enrollment for its Phase 2a Trial RXI-109-1301 2RXi Pharmaceuticals Announces Sustained Effect of RXI-109 at Three Months Post Scar Revision Surgery and the Completion of Enrollment for its Phase 2a Trial RXI-109-1301 3RXi Pharmaceuticals Announces Sustained Effect of RXI-109 at Three Months Post Scar Revision Surgery and the Completion of Enrollment for its Phase 2a Trial RXI-109-1301 4RXi Pharmaceuticals Announces Sustained Effect of RXI-109 at Three Months Post Scar Revision Surgery and the Completion of Enrollment for its Phase 2a Trial RXI-109-1301 5Parents Of Children With Autism Spectrum Disorder Have New Options When Administering Medications 2Parents Of Children With Autism Spectrum Disorder Have New Options When Administering Medications 3MEMS Gyroscopes Analog Devices ADIS16136 Precision Angular Rate Sensor Reverse Costing Analysis 2
... reference laboratory and a worldwide leader in ... an extensive test menu of highly complex ... anatomic pathology. Owned by the University of ... half of the nation's university teaching hospitals ...
... reference laboratory and a worldwide leader in ... an extensive test menu of highly complex ... anatomic pathology. Owned by the University of ... half of the nation's university teaching hospitals ...
... is a national reference laboratory and a ... development. ARUP offers an extensive test menu ... in clinical and anatomic pathology. Owned by ... include more than half of the nation's ...
... is a national reference laboratory and a ... development. ARUP offers an extensive test menu ... in clinical and anatomic pathology. Owned by ... include more than half of the nation's ...
Medicine Products: