Free Health Updates
Skip to main content
Table of Contents
< All Topics
Print

What Does EEG Show About Brain Structure and Function in ADHD? 

Posted
Updated
ByMy Patient Advice
Author: Harriet Winslow, BSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

Electroencephalography (EEG) is a technique used to measure electrical activity in the brain, providing valuable insights into ADHD brain function. Brain scans ADHD, including EEG studies, have shown that individuals with ADHD often exhibit abnormal brainwave patterns, particularly in areas of the brain responsible for attention, behaviour, and cognitive control. These abnormalities in brain activity are closely linked to ADHD behaviour, such as inattention, impulsivity, and hyperactivity. 

EEG findings in people with ADHD often show an increased presence of slow brainwaves, such as theta waves, which are typically associated with drowsiness or daydreaming. Conversely, faster brainwaves, like beta waves, which are linked to focus and concentration, may be underactive. These differences in brainwave patterns highlight the ADHD cognitive issues that individuals face, as their brain function is less efficient when it comes to sustaining attention and controlling impulses. 

Complete your ADHD assessment

Common Symptoms of ADHD Linked to Brain Function Abnormalities Revealed by EEG 

The brainwave abnormalities identified through brain scans ADHD can help explain several common symptoms of ADHD, including: 

Inattention

Slow brainwave activity, particularly in regions responsible for sustained attention, leads to difficulty concentrating for long periods.  

Impulsivity

Reduced beta wave activity in the frontal lobe makes it harder for individuals to control their impulses, leading to spontaneous actions, such as interrupting others or making snap decisions without thinking through consequences. 

Hyperactivity

Imbalances in brainwave activity can cause restlessness and excessive movement, which is common in children with ADHD. This can manifest as an inability to sit still, fidgeting, or an overwhelming need to be constantly in motion, even when it is inappropriate or unnecessary. 

Emotional Dysregulation

Abnormalities in brainwave patterns related to emotional processing can lead to difficulties managing emotions. 

By understanding how ADHD brain function is reflected in brain scans ADHD and EEG patterns, we can gain a deeper understanding of ADHD behaviour and better tailor interventions to help manage ADHD symptoms effectively. 

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.  

Complete your ADHD assessment
Harriet Winslow, BSc
Harriet Winslow, BSc
Author

Harriet Winslow is a clinical psychologist with a Bachelor’s in Clinical Psychology and extensive experience in behaviour therapy and developmental disorders. She has worked with children and adolescents with ADHD, autism spectrum disorder (ASD), learning disabilities, and behavioural challenges, providing individual and group therapy using evidence-based approaches such as CBT and DBT. Dr. Winslow has developed and implemented personalised treatment plans, conducted formal and informal assessments, and delivered crisis intervention for clients in need of urgent mental health care. Her expertise spans assessment, treatment planning, and behavioural intervention for both neurodevelopmental and mental health conditions.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy.

Dr. Rebecca Fernandez, MBBS
Reviewer

Dr. Rebecca Fernandez is a UK-trained physician with an MBBS and experience in general surgery, cardiology, internal medicine, gynecology, intensive care, and emergency medicine. She has managed critically ill patients, stabilised acute trauma cases, and provided comprehensive inpatient and outpatient care. In psychiatry, Dr. Fernandez has worked with psychotic, mood, anxiety, and substance use disorders, applying evidence-based approaches such as CBT, ACT, and mindfulness-based therapies. Her skills span patient assessment, treatment planning, and the integration of digital health solutions to support mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewer's privacy. 

Categories