Imaging Study Confirms Brain Differences in People With ADHD
Feb 17 2017
Furthermore, the review has shown an insignificant difference in the brain volumes.
Attention Deficit Hyperactive Disorder (ADHD) results, in essence, in sudden bursts of hyperactivity, coupled with inattention and a frequent inability to focus. This is not entirely true for all patients, but some adults have been proven to have the syndrome in their childhood years and today have fully recovered from the condition. The causes of ADHD remain disputed. This could only be found because we had a very large study population.
"The results from our study confirm that people with ADHD have differences in their brain structure and therefore suggest that ADHD is a disorder of the brain", said the study's lead author, Martine Hoogman of Radboud University Medical Centre in the Netherlands".
"We hope that this will help reduce stigma that ADHD is "just a label" for hard children or caused by poor parenting", said the study's leader author, Martine Hoogman of Radboud University Medical Center in the Netherlands, in a statementreported by AFP. All were aged four to 63.
All 3,242 people had an MRI scan to measure their overall brain volume, as well as the size in seven regions thought to be linked to ADHD.
The smaller brain structures in children with ADHD but not in adults fits with a "delayed peak volume" theory that ADHD is associated with an "altered velocity of cortical development", the authors said.
The researchers studied MRIs of the brain to identify the regions possibly affected by ADHD, but Posner says it's not practical to use MRIs to diagnose the disorder-at least not yet.
After reviewing one scan per person, scientists found no effect from ADHD medications.
Commenting on the study from an independent perspective, Jonathan Posner of Columbia University, who works in the field of ADHD science, described these findings as an "important contribution". However, follow-up studies are recommended, he added, according to Medical Express. The team says that there is now a need for longitudinal studies that follow children with ADHD into adulthood and track brain changes over time.
There is also now a debate on how to prescribe medication. "It will hopefully create more empathy for children who have ADHD".
USA figures cited past year showed that in 2003, 7.8pc of children in a certain age group were diagnosed with ADHD, but by 2011, this had risen to 11pc. The CDC found that less than half of children diagnosed with ADHD symptoms were receiving behavior therapy, the preferred first-line of treatment for ADHD, before being given drugs.