The recent studies measuring children’s impulsive hand movements control ability may lead to insights into the brain-based differences of the attention deficit hyperactivity disorder (ADHD) children.

The scientists from Kennedy Krieger Institute in Baltimore and of Cincinnati Children’s Hospital Medical Center have carried out a joint research on children with ADHD. They performed a sequential finger- tapping experiments on children with ADHD and twice the amount of unintentional extra movements were recorded in ADHD children, in comparison to the normal children.

In other study, transcranial magnetic stimulation (TMS) is used to give stimulation to brain cells with mild magnetic pulses, to produce muscle activity in children’s hand. The test was performed on 49 children with ADHD and 49 without ADHD. The results revealed that children with ADHD show 40% degree of less inhibition as compared to the normal children.

Stewart Mostofsky, MD of Center of Autism and Related Disorders at Kenney Krieger Institute has said that research result reveals great difficulty these children face, in exercising control and inhibition over unintentional action and behavior, even at unconscious level.

The U. S National Institutes of Health had funded these studies. According to Jonathan W. Mink, MD, PhD, with University of Rochester Medical Center in New York, the studies help in understanding the communication process between brain and other parts of body and how ADHD affects it.