Navigation Links
Alterations in the brain's reward system related to attention-deficit/hyperactivity disorder
Date:2/3/2010

Until now, attention-deficit/hyperactivity disorder (ADHD) was related to alterations in the brain affecting attention and cognitive processes. Researchers at Universitat Autnoma de Barcelona and the Vall d'Hebron University Hospital for the first time have discovered anomalies in the brain's reward system related to the neural circuits of motivation and gratification. In children with ADHD, the degree of motivation when carrying out an activity is related to the immediacy with which the objectives of the activity are met. This would explain why their attention and hyperactivity levels differ depending on the tasks being carried out.

Susanna Carmona, researcher at the Cognitive Neuroscience Unit of the UAB Department of Psychiatry and Legal Medicine (URNC-IAPS-Hospital del Mar), has worked in collaboration with clinical researchers of the Vall d'Hebron University Hospital on the first research which relates the structure of the brain's reward system, the ventral striatum, with clinical symptoms in children suffering from ADHD.

Models describing the origin of ADHD tend to emphasise the relevance of attention processes and of the cognitive functions which guide our mental processes in achieving proposed objectives. Nevertheless, recent research has focused on neural gratification/pleasure circuits, which can be found in what is known as the brain's reward system, with the nucleus accumbens as the central part of this system.

The nucleus accumbens is in charge of maintaining levels of motivation when commencing a task and continues to do so until reaching what experts name the "reinforcement", the proposed objective. This motivation can be maintained throughout time, even when the gratification obtained is not immediate. However, in children with ADHD motivational levels seem to drop rapidly and there is a need for immediate reinforcements to continue persisting in their efforts.

In this study, researchers selected a sample o
'/>"/>

Contact: Maria Jesus Delgado
MariaJesus.Delgado@uab.cat
34-935-814-049
Universitat Autonoma de Barcelona
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Bacterial phylotype alterations in irritable bowel syndrome
2. Alterations in brains white matter key to schizophrenia, UCLA study shows
3. Gene alterations associated with response to anthracycline therapy for breast cancer
4. Older brains make good use of useless information
5. First Global, Virtual Summit on Cognitive Health and Performance Features 200 Sharp Brains
6. New Intra-Arrest Cooling Method May Save More Brains During Cardiac Arrest
7. Older Brains May Not Be So Small After All
8. Alzheimers Gene Affects Brains of Young Adults
9. Trauma From Iraq Could Alter Veterans Brains
10. As Waistlines Widen, Brains Shrink
11. Massachusetts General Hospital is Second in Nation to Acquire Both BrainSUITE(R) iMRI and iCT
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... Austin, TX (PRWEB) September 30, 2014 ... for Facial Plastic Surgery, has been approved to be ... of Facial Plastic and Reconstructive Surgery (AAFPRS) fellowship program. ... their meeting in Orlando, Florida. , The Educational and ... throughout the medical community. It represents the finest postgraduate ...
(Date:9/30/2014)... 30, 2014 Neuromuscular and central ... the United States and worldwide. It is estimated ... diagnosed each year, adding to the more than ... Approximately 400,000 people in the US are affected ... to these statistics the 2.4 percent of the ...
(Date:9/30/2014)... (PRWEB) September 30, 2014 ... caring individuals, National Children’s Oral Health Foundation: ... in grants to non-profit clinical partners. These ... Network and deliver comprehensive educational, preventive and ... Recipients include:,     Just Kids ...
(Date:9/30/2014)... (PRWEB) September 30, 2014 Pivotal 5, ... solutions, today announced Life Time – The Healthy Way ... destination for KettleWorX Group Training . KettleWorX Group ... fitness facilities. KettleWorX offers consumers of all fitness levels ... fun and effective manner. The rollout to Life Time ...
(Date:9/30/2014)... 2014 (HealthDay News) -- Herceptin is the best drug ... and should remain the standard of care for that ... long-term clinical trial. HER2-positive breast cancers tend to ... according to the Mayo Clinic. For the study, ... Herceptin (trastuzumab) or Tykerb (lapatinib) in addition to standard ...
Breaking Medicine News(10 mins):Health News:Dr. Edward Buckingham Approved to be Fellowship Director for Facial Plastic Surgery 2Health News:Dr. Edward Buckingham Approved to be Fellowship Director for Facial Plastic Surgery 3Health News:North American Seminars Introduces a New OT PT CME Course, Evidence Based Rehab Techniques for Parkinsons, Multiple Sclerosis and Peripheral Neuropathy 2Health News:North American Seminars Introduces a New OT PT CME Course, Evidence Based Rehab Techniques for Parkinsons, Multiple Sclerosis and Peripheral Neuropathy 3Health News:America's ToothFairy Awards More Than $150,000 in Grants to Save Young Smiles 2Health News:America's ToothFairy Awards More Than $150,000 in Grants to Save Young Smiles 3Health News:Pivotal 5 Announces Life Time Fitness As National Destination For KettleWorX Kettlebell Training 2Health News:Pivotal 5 Announces Life Time Fitness As National Destination For KettleWorX Kettlebell Training 3
... blood pressure is well known, however// a new study reports ... published today in the Open Access journal Environmental Health for ... of salt particles can have just the same effect on ... an occupational health hazard for workers in salt factory. It ...
... Authority (NPPA) has been working// on bringing down the ... the manufacturers and has finally succeeded. According to NPPA ... bring about a price reduction ranging between 2.14% to ... hearing to explain the reasons for steep price increase ...
... Gengraine Technologies (Avesthagen) of India is collaborating// with ... Developing Countries (IFU) of Germany for Osteoporosis research. ... euro. Avesthagen said “"The alliance will cover diagnosis, ... disorders.” The research studies related to menopause linked ...
... patients with diastolic heart failure increases// the survival rate ... ,William C. Little and his research team from ... heart failure (DHF) treated with statins has better survival ... failure patients published in the Journal Circulation: Journal of ...
... For the elderly population, adjusting to the raising temperatures// in ... heat that may affect the elderly people are heat exhaustion ... Health Letter from the Harvard Medical School had given some ... a little easier during the summers. ,In addition to ...
... article reviewing the research carried out so far into the ... revealed that a new phase III trial is scheduled to ... CoQ10 has escalated, causing soaring prices and reports of fake ... to have been triggered by the publication of Shults’ earlier ...
Cached Medicine News:Health News:Hypertension can be caused by Inhalation of Salt 2Health News:Hypertension can be caused by Inhalation of Salt 3Health News:Statins Gives New Hope for Increased Survival Rate of Heart Failure Patients 2Health News:Elderly People Needs To Tackle The Heat Effectively 2Health News:New Study to look at the Beneficial Effects of Coenzyme Q10 on Parkinson’s disease 2
(Date:9/30/2014)... Inc. ( www.synapsebiomedical.com ) announced today it has ... its NeuRx DPS® System for ALS patients.  The ... requirement was implanted over a month and a ... is the only medical device approved by the ... device that obtained approval at the end of ...
(Date:9/30/2014)... Netherlands , Sept. 30, 2014  eHealth, ... phone storage and access of this information, has ... Slot , however, that has not translated into ... http://photos.prnewswire.com/prnh/20140929/149122 Photo - http://photos.prnewswire.com/prnh/20140929/149123 ... the past few years developing MWD® Health Manager ...
(Date:9/30/2014)... 30, 2014 It is evident from the industry ... not performing upto expectations due to the lack of promotional ... the intake of omega-3 fatty acids. Among omega-3 ingredient sources ... oil, attributed to the large vegetarian population in ... fatty acid (PUFAs) ingredients is in growth stage of its ...
Breaking Medicine Technology:Synapse Biomedical Announces the Early Completion of Enrollment in the FDA Post Approval Study for ALS Patients 2Synapse Biomedical Announces the Early Completion of Enrollment in the FDA Post Approval Study for ALS Patients 3MWD Challenges the Big eHealth Players With New Software for Your Smartphone 2Omega-3 Polyunsaturated Fatty Acids (PUFAs) - An Indian Market Overview 2
... FRANCISCO, Oct. 29 Medivation, Inc. (Nasdaq: MDVN ... webcast with management to discuss third quarter 2010 financial results ... at 4:30 p.m. Eastern Time. A press release for the ... markets close on November 5, 2010. Interested ...
... N.Y., Oct. 29 Henry Schein, Inc. (Nasdaq: ... to office-based practitioners, today reported record financial results for the ... the third quarter of 2010 were $1.9 billion, an increase ... consists of 16.4% growth in local currencies and a decline ...
Cached Medicine Technology:Henry Schein Reports Record Third Quarter Results 2Henry Schein Reports Record Third Quarter Results 3Henry Schein Reports Record Third Quarter Results 4Henry Schein Reports Record Third Quarter Results 5Henry Schein Reports Record Third Quarter Results 6Henry Schein Reports Record Third Quarter Results 7Henry Schein Reports Record Third Quarter Results 8Henry Schein Reports Record Third Quarter Results 9Henry Schein Reports Record Third Quarter Results 10Henry Schein Reports Record Third Quarter Results 11
Each handle is designed to fit a specific trephine size. For use in performing free-hand uniform donor buttons....
Each handle is designed to fit a specific trephine size....
Each handle is designed to fit a specific trephine size....
Each handle is designed to fit a specific trephine size....
Medicine Products: