ADHD brain screening in London

Whether you're an adult near London who's suspected ADHD for years, or a parent in Greater London watching your child fall behind while the NHS list doesn't move, the situation is the same: you need objective evidence, and you need it now. Not in 3–5 years.

The standard ADHD pathway relies entirely on subjective assessment. Questionnaires that ask "do you fidget?" and "do you lose things?" These tools were designed in the 1970s based on studies of hyperactive boys. They systematically miss women with inattentive ADHD, adults who've learned to mask, and children who compensate through sheer effort.

Our approach is different. We measure the brain directly. The theta/beta ratio is the most-studied EEG biomarker for ADHD, supported by decades of published research and referenced in the FDA's clearance of the NEBA System. It doesn't matter how well you mask. Your brain can't fake a TBR.

Stimulant medications work for ADHD because they increase cortical arousal — they boost beta activity and reduce excess theta. This is why our baseline screening data becomes invaluable if you're later diagnosed and prescribed medication. A follow-up scan can objectively measure whether the medication has normalised your TBR.

This is the principle behind our medication comparison scan (£345): before-and-after brain data showing whether treatment is having the intended neurological effect. It's evidence-based medication management — not just 'do you feel better?' but 'has your theta/beta ratio moved towards the normative range?'

No questionnaire can provide this. Only direct brain measurement shows whether the underlying neurophysiology has changed. That's the fundamental advantage of objective data over subjective report.

Read the full breakdown of the research behind our screening on our ADHD brain science page.

We measure five frequency bands across four cortical sites simultaneously: delta (1–4 Hz, deep processing), theta (4–8 Hz — the key ADHD band, associated with unfocused states), alpha (8–12 Hz, relaxed awareness), beta (12–30 Hz, active focus), and gamma (30–45 Hz, higher processing).

The theta/beta ratio is the critical metric. In ADHD, the brain produces too much theta relative to beta. This pattern has been replicated across hundreds of studies worldwide. Our normative data covers age groups from 6–7 through to 60+, because the ratio naturally changes as the brain matures.

See the full step-by-step process on our how it works page, or visit our FAQ for common questions.

For children, the experience is designed to be reassuring and even fun. Parents stay in the room at all times. We explain the cap as a 'special hat that listens to your brain' and let children hold it, look at the electrodes, and understand there's nothing to be scared of.

The recording phases are kept simple: 'look at the cross,' 'close your eyes and think of something nice,' then 'play the game' (Go/No-Go). Most children aged 7+ manage the full protocol without difficulty. For younger children (6–7), we allow extra time and offer breaks between phases.

If a recording phase is too noisy due to movement or fidgeting — which is common and completely understandable given why they're here — we simply redo that phase at no extra cost. We never force a child to continue if they're uncomfortable. We offer a free return visit if the session can't be completed on the day. After screening, our parent's guide covers school support, EHCP applications and exam access arrangements.

For adults, preparation is minimal: clean hair, normal sleep, normal food, moderate caffeine, arrive 5 minutes early. The appointment takes about 30 minutes and you can go straight back to work or normal activities afterwards — there's no recovery time, no drowsiness, no side effects.

Many adults coming for ADHD screening are nervous — not about the scan itself, but about what they might find. Will the data confirm decades of suspicion? What if it doesn't? Both outcomes are useful. Elevated TBR gives you objective evidence to pursue diagnosis. Normal TBR, combined with persistent symptoms, points your clinician toward other explanations worth investigating.

Either way, you leave with data rather than uncertainty. That's the point. Our next steps guide covers every pathway after screening — NHS, Right to Choose, and private assessment — so you'll know exactly what to do with your results.

For more detail on the full process from booking to report, see how it works.

We screen children aged 6 and above, teenagers, and adults of all ages from London and across Greater London. Each person is compared against age-matched normative data from published research — because a 7-year-old's brain is neurologically very different from a 40-year-old's.

For children, the most common scenario is parents who've been told their child "just needs to try harder." For teenagers, it's GCSE or A-level pressure exposing hidden attention difficulties. For adults, it's often a lifetime of wondering — sometimes triggered by a child's diagnosis.

Women and girls are particularly underserved by standard assessment. The inattentive presentation — quiet, dreamy, internally restless — is systematically missed by questionnaires designed around hyperactive boys. Our brain screening measures neurology directly, bypassing the behavioural bias.

Learn more: children 6+ · teenagers · adults · women & girls

View packages: standard screening (£595) · comprehensive (£845) · family package (£1,095) · all pricing

After your screening: ADHD support hub · results explained · what to do next · GP appointment guide · parent's guide

Autism and ADHD frequently coexist — research suggests 50–70%% of autistic individuals also meet criteria for ADHD. For parents near London whose child has already been diagnosed with autism, the question is often whether ADHD is also present. The overlap in symptoms — difficulty with transitions, sensory overwhelm, social challenges — makes clinical differentiation through observation alone extremely difficult.

Our brain screening helps untangle this. The theta/beta ratio pattern associated with ADHD is measurable regardless of whether autism is also present. A child with autism-only typically shows a different EEG profile from a child with autism-plus-ADHD. Having this data helps your clinician decide whether ADHD-specific interventions — including medication — should be considered alongside autism support.

After your screening, you have a same-day report in your hands. Here's the recommended action plan: Week 1 — book a GP appointment (request a double appointment, 20 minutes). Bring the clinical letter and report. Ask for a Right to Choose referral to Psychiatry-UK or an urgent CAMHS referral. Week 1–2 — email the report to your child's school SENCO. Request a meeting to discuss SEN register, exam access, and EHCP evidence. Week 2–4 — if you're an adult in work, start an Access to Work application online. Attach the clinical letter as supporting evidence.

While you wait for formal assessment (3–6 months via Right to Choose, 2–5 years via NHS): use the report for any immediate support needs — workplace adjustments, school accommodations, private therapy, or family understanding. The report doesn't expire. It's your evidence for as long as you need it.

We always recommend staying on the NHS waiting list while pursuing our screening. The NHS pathway leads to fully-funded ongoing care. Our screening gives you evidence and support in the meantime — and data that strengthens your case when the NHS appointment finally arrives.

Travelling from London? We'll match you to the nearest screening venue when you book. Our venues are private, comfortable spaces across Cheshire, Greater Manchester, and the surrounding region — all with free parking. No hospital atmosphere, no clinical smell, no waiting room full of strangers.

Prefer to stay home? Our home visit service is available across Greater London. The tester brings everything — EEG cap, laptop, reference electrodes — and sets up in your living room, study, or any quiet space. Parents find this especially useful for children who are nervous about new environments.