Does ADHD Affect the Parietal Cortex in Imaging Studies?

PostedOctober 6, 2025

UpdatedOctober 6, 2025

ByMy Patient Advice

Author: Phoebe Carter, MSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

Yes, many ADHD parietal cortex imaging studies show that the parietal lobe is often under‑activated or structurally different in people with ADHD. These differences show up in tasks involving attention networks and visuospatial processing, revealing fMRI differences that help explain struggles with spatial awareness, directing attention, and maintaining focus.

Functional MRI studies reveal that, during visuospatial tasks (for example mental rotation or pattern‑sequencing), individuals with ADHD display reduced activation in regions like the right inferior and superior parietal cortex. One study using a mental rotation paradigm in adolescents with ADHD‑combined type found less activation in parietal (BA 7, BA 40) and also frontoparietal attention systems compared to controls. Structural MRI studies also suggest cortical thinning or reduced grey matter volume in parietal regions, hinting that some anatomical structural differences accompany the functional changes.

Common Symptoms Linked to Parietal Cortex Differences

Here are key symptoms tied to parietal cortex deficits and how treatment may help:

Difficulty with Spatial Tasks & Visual Attention

People may struggle with reading maps, judging distances, or being visually overwhelmed in busy environments, all tasks tapping into visuospatial processing. Medication can help by improving attention control and enhancing neural signalling in parietal attention networks. CBT helps through strategies like breaking down spatial tasks or using visual aids.

Problems Sustaining Attention on External Tasks

Because attention networks involving the parietal cortex are less responsive, staying focused on visual input (e.g. worksheets, presentations) becomes challenging. Behavioural techniques and environmental modifications (reducing visual clutter, giving frequent breaks) aid focus, along with medication where appropriate.

Visit providers like ADHD Certify for personal consultations tailored to your ADHD care and support needs.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to ADHD parietal cortex.

Phoebe Carter, MSc

Author

Phoebe Carter is a clinical psychologist with a Master’s in Clinical Psychology and a Bachelor’s in Applied Psychology. She has experience working with both children and adults, conducting psychological assessments, developing individualized treatment plans, and delivering evidence-based therapies. Phoebe specialises in neurodevelopmental conditions such as autism spectrum disorder (ASD), ADHD, and learning disabilities, as well as mood, anxiety, psychotic, and personality disorders. She is skilled in CBT, behaviour modification, ABA, and motivational interviewing, and is dedicated to providing compassionate, evidence-based mental health care to individuals of all ages.

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.