A team of researchers from the University of Cambridge has recently published a study revealing that ADHD (attention deficit hyperactivity disorder) may be linked to hyperconnectivity between certain brain regions.
This discovery, published in the journal Nature Mental Health in 2024 (source), redefines the understanding of the disorder and paves the way for more targeted therapeutic approaches.
The ADHD brain works differently, not less well
According to the researchers, the brain of people with ADHD shows excessive communication between the striatum (motivation) and the prefrontal cortex (executive control).
These two areas interact constantly, even when no task is required.
In practice:
- the motivation regions are more active than average,
- those of cognitive control struggle to moderate this activity.
This observation explains why people with ADHD often find it hard to concentrate on dull tasks, yet can remain hyperfocused on what fascinates them.
🔬 “The ADHD brain does not lack attention, it has too much of it — spread everywhere at once.”
— Dr Gina Rippon, co-author of the study, University of Cambridge.
Hyperconnectivity observed through brain imaging
The study relies on fMRI (functional magnetic resonance imaging), a technique that makes it possible to visualise neural exchanges in real time.
The results show continuous activity in the ADHD brain, even at rest.
This discovery calls into question the classic model of the “attentional deficit”.
ADHD would not be a weakness, but a difference in the management of neural networks.
This idea is supported by complementary research carried out by Yale University in 2023 (source), confirming the overactivation of the default mode network (DMN) in patients with ADHD.
What this discovery changes in support
Towards personalised treatments
The researchers advocate a therapeutic approach aimed at regulating neural connectivity rather than eliminating it.
Tools such as neurofeedback or transcranial magnetic stimulation (TMS) could help rebalance these overactive connections.
A new perspective on ADHD
These results support the idea that ADHD is a neurodivergence, not a pathology in the strict sense.
People concerned often show rapid associative thinking, heightened curiosity and great creativity, arising from this brain hyperactivity.
Practical applications for everyday life
Understanding this functioning helps to rethink support:
- creating a clear environment, without sensory overload,
- dividing tasks into short steps,
- allowing genuine decompression breaks.
Platforms such as AidToi.fr and Dys’tap.io already use these principles by offering digital tools for organisation and concentration adapted to ADHD profiles.
In summary
This study demonstrates that the ADHD brain is hyperconnected, not deficient.
These excessive connections explain the difficulty in prioritising, but also the qualities of creativity and adaptability that characterise many neurodivergent people.
Understanding this functioning makes it possible to build more humane and effective support.
