Navigation Links
Reason Behind Dyscalculia Revealed

Scientists of University College London have conducted a study that offers definitive proof that the right parietal lobe is indeed responsible// for dyscalculia or in layman terms the inability to ‘do math’. The researchers hope the findings will aid in the diagnosis and management of the disorder, through remedial teaching.

Dyscalculia is just as prevalent in the population as dyslexia and attention deficit hyperactivity disorder – around 5% of the population is affected. However, dyscalculia has not been given the same attention as other disorders and the underlying brain dysfunction causing dyscalculia is still a mystery. It is hoped that this study will provide a better understanding of the condition and lead to better diagnosis and treatment.

Dr Roi Cohen Kadosh, of the UCL Institute of Cognitive Neuroscience, said: “This is the first causal demonstration that the parietal lobe is the key to understanding developmental dyscalculia. Most people process numbers very easily – almost automatically – but people with dyscalculia do not. We wanted to find out what would happen when the areas relevant to maths learning in the right parietal lobes were effectively knocked out for several hundred milliseconds. We found that stimulation to this brain region during a maths test radically impacted on the subjects’ reaction time.

“This provides strong evidence that dyscalculia is caused by malformations in the right parietal lobe and provides sold grounds for further study on the physical abnormalities present in dyscalculics’ brains. It’s an important step to the ultimate goal of early diagnosis through analysis of neural tissue, which in turn will lead to earlier treatments and more effective remedial teaching.”

Using neuronavigated transcranial magnetic stimulation (TMS) to stimulate the brain, scientists were able to bring about dyscalculia in normal subjects for a short time while the subjects completed a maths task that i nvolved comparing two digits, one larger in physical size than the other and the other larger numerically. For example, the subjects compared a 2 and a 4. The 2 was in a larger font than the 4 and subjects had to decide which digit was numerically larger.

The effect of TMS lasted only a few hundred milliseconds in the subjects and was brought on just at the point when the subject had to evaluate the numbers and decide which had the greater value or which was physically bigger. The test was designed to measure the subjects’ automatic processing of numbers and was rolled out to both people with the dysfunction and those without it.

The researchers found that non-dyscalculic participants displayed dyscalculic-like behaviour in number processing only during TMS-induced neuronal activity disruptions to the right intraparietal sulcus. These findings were further validated by testing participants suffering from developmental dyscalculia. The results of the dyscalculic group reproduced the behavioural results obtained in non-dyscalculic volunteers during right parietal TMS, but not after left parietal TMS or sham stimulation.

This novel approach of directly comparing healthy participants with TMS-induced virtual dyscalculia to participants suffering from developmental dyscalculia enabled the researchers to propose a direct causal relationship between malfunctions along the right intraparietal sulcus and developmental dyscalculia.

Source-Eurekalrt
ANN
'"/>




Related medicine news :

1. Reasons why men die earlier
2. A Reason To Smile
3. The Reason For Depression in Adolescents
4. Sun The Reason To Blame for eye Disease
5. The Reason For Loss Of Appetite After Gastric Bypass
6. Reasons For Low Back Pain
7. Abnormal Brain Structure One Of The Reasons For Depression in Adolescents
8. The Reason For Depression in Adolescents
9. Reason for diabetes drug causing edema discovered
10. Testosterone patch for women Rejected For safety Reasons
11. Yet Another Reason To Celebrate Drinking
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/25/2017)... (PRWEB) , ... April 25, 2017 , ... Saad B. Chaudhary, MD is committed to ... of acute or chronic problems, I focus on preventative care with all my patients to ... have any questions, always feel free to contact my office and my trained staff will ...
(Date:4/25/2017)... Fl (PRWEB) , ... April 25, 2017 , ... There ... Memorial Regional Hospital, according to a special report in the May issue of Consumer ... its highest quality ranking for results achieved during and after coronary bypass and ...
(Date:4/24/2017)... Boston, Massachusetts (PRWEB) , ... April 24, 2017 , ... ... that will help busy nursing professionals advance their careers. Beginning in the fall of ... in Nursing (BSN) degree in as few as 16 months and for as little ...
(Date:4/24/2017)... ... April 24, 2017 , ... The Santana Telehealth Project was honored with ... — the American Telemedicine Association’s annual conference, on April 23 in Orlando, FL. , ... to improve the lives of the poor and underserved in other parts of the ...
(Date:4/24/2017)... (PRWEB) , ... April 24, 2017 , ... ... Educational Research Association’s Outstanding Public Communication of Education Research Award. The award honors ... including education communities. It recognizes a scholar who has demonstrated the capacity to ...
Breaking Medicine News(10 mins):
(Date:4/20/2017)... , April 20, 2017 Research and ... Market Size, Market Share, Application Analysis, Regional Outlook, Growth Trends, ... report to their offering. ... The global pharmacogenomics market was valued at US$ 7,167.6 Mn ... by 2024, expanding at a CAGR of 5.6% from 2016 ...
(Date:4/19/2017)... April 19, 2017 /PRNewswire/ - CRH Medical Corporation (TSX: CRH) (NYSE MKT: CRHM) ... & Co. Healthcare Investor Conference 2017 at the Sheraton Hotel in ... , Chief Executive Officer of the Company is scheduled to present ... Richard Bear and the Chairman of the Board, Tony ... ...
(Date:4/19/2017)... NEW YORK , April 19, 2017 ... Surgical drainage devices are tubes used to remove excess ... include, blood, serum, pus, urine, bile or lymph. Surgical ... types of surgery such as orthopedics surgery, cardiovascular surgery, ... device is prophylactic post-surgery to prevent accumulation of fluid ...
Breaking Medicine Technology: