Treatment sequencing for childhood ADHD: A multiple-randomization study of adaptive medication and behavioral interventions. However, there is a minority of individuals with ADHD who exhibit cortical hyperarousal or no changes in quantitative electroencephalography QEEG compared to healthy controls.
The researchers also compared scores of the six non-medicated versus the medicated children and found that there were no significant differences in symptoms, indicating that the changes were likely not due to pharmacologic treatment.
These results may indicate that the children with ADHD may exhibit decreased parasympathetic activity as indicated by increased HRV following pharmacological intervention [ 13 ].
Changes of heart rate variability during methylphenidate treatment in attention-deficit hyperactivity disorder children: A week prospective study.
There was significantly greater alpha activity in the posterior region when compared to the frontal region, whereas theta activity was greater in the frontal and temporal-central regions compared to the posterior [ 50 ]. Findings revealed that the group who underwent yoga intervention had significantly better reaction time and response accuracy at the two measurements [ 29 ].
Acknowledgments No grants or funds were received for this review article.