How Do PET Scans Detect Brain Structure and Function Changes in ADHD? 

ADHD brain imaging techniques, such as Positron Emission Tomography (PET) scans, are crucial for understanding the brain structure and function changes that contribute to ADHD. PET scans allow researchers to observe the metabolic activity of different brain regions, providing insights into how the brain works in individuals with ADHD. These scans reveal areas of the brain that show underactivity or abnormal functioning, particularly in regions responsible for attention, impulse control, and executive function, such as the prefrontal cortex. 

Through ADHD brain imaging, PET scans have shown that children with ADHD often have reduced activity in the prefrontal cortex, an area critical for decision-making, emotional regulation, and self-control. This underactivity is associated with ADHD cognitive issues, including impulsivity, inattention, and difficulty with task completion. Additionally, neurodevelopment abnormalities observed in PET scans can indicate disruptions in how the brain develops, especially in areas involved in controlling motor behaviour and processing rewards. 

Common Symptoms Linked to Brain Function Changes in ADHD 

The brain structure and function changes detected by PET scans help explain several common symptoms of ADHD: 

Inattention

Reduced activity in brain areas responsible for focus and attention contributes to difficulties in concentrating and completing tasks. 

Impulsivity

Underactive regions involved in impulse control lead to behaviours such as interrupting others or making snap decisions without considering consequences. 

Hyperactivity

Disruptions in areas that regulate motor control contribute to restlessness and excessive movement in children with ADHD. 

By using ADHD brain imaging techniques like PET scans, we can better understand how these brain function changes lead to ADHD in children and support more effective treatment strategies. 

Visit providers like ADHD Certify for personal consultations and expert advice tailored to your needs.   

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Brain Structure and Function.