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Neurocognitive assessment · ADHD first

Objective attention data. From a link, not a lab.

A browser-based cognitive assessment, in development, designed for clinicians to order and patients to complete at home in about 30 minutes. ADHD first, then cognitive decline.

In developmentNot FDA clearedNot for clinical use: read our regulatory status
RT distribution · ex-GaussianIllustrative
Illustrative reaction-time distribution An abstract ex-Gaussian curve drawn from synthetic parameters: a peak near 430 milliseconds and a long right-hand tail. Not patient data. 2004006008001000 MODE ≈ 430 MS τ · SLOW-RESPONSE TAIL EXPONENTIAL COMPONENT REACTION TIME (MS) →
μ 380 · σ 45 · τ 110 msSynthetic parameters · not patient data

The tests exist. Getting one is the hard part.

The continuous performance test, a core measure of sustained attention, has been studied since 1956. But a full evaluation still means a specialist, a testing room, or dedicated hardware, so most attention and memory concerns are assessed with interviews and rating scales alone.

15.5million

U.S. adults with a current ADHD diagnosis. About half were diagnosed as adults.

SourceCDC, MMWR, 2024

7.4million

Americans 65 and older living with Alzheimer's dementia in 2026.

SourceAlzheimer's Association, 2026 Facts and Figures

<1 in 3

Fewer than one in three Medicare beneficiaries 65 and older in a national survey reported a structured cognitive assessment, though Medicare's Annual Wellness Visit requires detection of cognitive impairment.

SourceJacobson et al., Health Affairs, 2020 · 42 CFR 410.15

A cognitive battery that runs in a browser tab.

  • No hardware.

    Designed to run on a modern laptop or desktop. No headband, camera rig, or install. Device timing is designed to be checked in every session.

  • Adaptive by design.

    Task difficulty and length are designed to adjust to performance, so the session stays informative without running long.

  • A report built for the visit.

    Session validity first, then domain scores against normative comparisons, then the measures underneath. Designed for the clinician who ordered it.

Ordered by a clinician. Finished at home. Read by a clinician.

  1. Order.

    The clinician picks a battery for the clinical question and sends the patient a link.

  2. Test.

    The patient spends about 30 minutes on tasks in a web browser at home.

  3. Report.

    Scoring and validity checks are designed to run automatically. Our target is a structured report to the clinician within 24 hours.

  4. Decide.

    The clinician reads it alongside history, interview, and rating scales, and makes the call.

Designed to support a clinician's judgment. It does not diagnose.

Illustrative — synthetic data · not a real patient

Sample report · Synthetic data

Patient: Sample A · Adult · Session valid

1  Validity

  • Effort checksPassed
  • Device timingWithin tolerance

Effort checks: passed · Device timing: within tolerance

2  Sustained attention

d′NON-TARGETTARGETCRITERION

d′ (target sensitivity) · omissions · commissions

3  Response-time profile

τ · SLOW TAILRESPONSE TIME →

RT variability · ex-Gaussian τ (slow-response tail)

4  Normative comparison

  • Sustained attention
  • Response inhibition
  • Working memory
  • Processing speed

Sample positionReference band

Shown against a reference band for age

Not a diagnosis. Interpret with the full clinical picture.

Illustrative example using synthetic data. Not a real patient. Not a diagnostic output.

Illustrative sample

What a clinician would see.

Validity first. Then a one-page summary by cognitive domain, with the raw measures one click deeper.

  • 1ValidityEffort checks and device timing, before any score is shown.
  • 2Sustained attentiond′ (target sensitivity), omissions, and commissions.
  • 3Response-time profileRT variability and the ex-Gaussian τ, the slow-response tail.
  • 4Normative comparisonShown against a reference band for age.

No risk score, no probability, no diagnostic label. Reference bands in this sample are synthetic.

What changes for the clinician.

Categories describe common practice, not specific products. The ATTNhealth column lists design goals, not demonstrated performance.
DimensionInterview and rating scales aloneHardware-based attention testFull neuropsychological evaluationATTNhealth (design goals)
Objective performance dataNo. Self- and observer reportYes, attention-focusedYes, broadYes: attention, working memory, processing speed
Where it happensClinicClinic, or home with a camera setupSpecialist's officeHome, in a web browser
EquipmentNoneDedicated hardware or cameraTesting materials and a trained examinerA laptop or desktop
Patient timeMinutesOften under an hourOften several hoursAbout 30 minutes
Effort and validity checksNot built inVariesYes, examiner-chosenBuilt into every session
Regulatory statusn/aSome are FDA clearedn/aIn development. Not FDA cleared

Who's building it

He treats the patients who need these tests.

ATTNhealth's founder is an MD, PhD psychiatrist and endowed professor of psychiatry at an Ivy League medical school. He directs an adult neurodevelopment clinic, where he treats adults with ADHD, and runs a research lab that studies the genetics of neurodevelopmental and psychiatric conditions.

Academic roles are described for context only. ATTNhealth is an independent company.

Read the full story

Now, next, later.

Now

  • In progress

    Building the core battery

    Attention, working memory, processing speed.

  • In progress

    Recruiting clinician pilot partners

  • In progress

    Raising a pre-seed round

  • In progress

    Looking for a technical cofounder

Next

  • Planned

    Device timing and test–retest reliability studies

  • Planned

    IRB-approved validation study

    In adults referred for ADHD evaluation.

  • Planned

    Normative reference data collection

Later

  • Planned

    FDA 510(k) submission for the ADHD battery

  • Planned

    Validation for cognitive decline

  • Planned

    Clinician-reviewed AI interpretive drafts

Two ways in.

Clinicians and health systems

Shape the first version in your clinic.

A small group of pilot partners will see it early, help shape what the report shows, and help validate it.

Join the clinician pilot
Investors

We're raising a pre-seed round.

It funds the first battery, the validation study behind it, and the start of the FDA pathway.

Request the investor deck

Looking for testing for yourself or your child? ATTNhealth isn't available yet, and it will be ordered by clinicians. We can't give medical advice. If you're concerned about attention or memory, please talk with your doctor.

Sources (8)

  1. Staley BS, et al. ADHD Diagnosis, Treatment, and Telehealth Use in Adults — United States, Oct–Nov 2023. MMWR 2024;73(40):890–895. cdc.gov
  2. Alzheimer's Association. 2026 Alzheimer's Disease Facts and Figures. alz.org
  3. Jacobson M, Thunell JA, Zissimopoulos J. Cognitive Assessment at Medicare's Annual Wellness Visit in Fee-for-Service and Medicare Advantage Plans. Health Affairs 2020. PMC9517732
  4. 42 CFR § 410.15, Annual wellness visits. ecfr.gov
  5. Rosvold HE, et al. A continuous performance test of brain damage. J Consult Psychol 1956;20(5):343–350. doi:10.1037/h0043220
  6. Demontis D, Walters RK, Martin J, et al. Discovery of the first genome-wide significant risk loci for ADHD. Nat Genet 2019;51:63–75. PubMed 30478444