Brain fog or executive difficulties?
See how you perform over time.

See the complete sample report

Your results, made easy to read

Your overall FogScore and four domain scores lead the report. Task results pair the actual number and units with a color bar and an age- and input-matched reference range where available.

• Colors that follow performance. Green covers the typical task-reference range and better performance. High accuracy, stronger memory and fewer errors stay green. Yellow and red sit on the poorer-performance side.
• A clear first assessment. See your current scores and task results without an empty “Changes over time” section.
• Useful follow-up comparisons. When a previous assessment is selected, page one shows current and previous FogScores, all four domain scores and point changes side by side. Later sections show task-level changes.
• Plain-language explanations. See what you did, what each task measures and whether task performance is within, below or above its matching reference range.
• Two reports, ready to share. Save the patient report or the more detailed chart report as a printable PDF.

The overall FogScore and domain scores use descriptive performance bands. Task-reference ranges provide a separate comparison with the matched reference sample.

Fictional example: the participant and results below are illustrative. This sample shows a follow-up assessment.

One overall score. Four performance areas.

Your overall FogScore Performance Index and four domain scores use the same fixed 0–100 scale across sessions. See the summary first, then explore the measurements behind it.

The value is seeing what changes

Brain fog can be difficult to describe. A structured starting point and repeat assessments give you something concrete to review alongside your experience.

• Establish your baseline. Save the first assessment as your starting point.
• Follow your performance. Compare results across dates, including measurements taken before and during treatment.
• See the detail behind the total. Review attention, memory, processing speed and executive tasks separately.
• Bring a clearer record. Share a printable report at your next appointment or keep it for your own tracking.

Practice, sleep, fatigue and testing conditions can affect results. Recorded attempts, practice and device details help put repeated measurements in context.

What the assessment includes

The same full battery is used for self-directed and examiner-guided testing. It contains six published computerized tasks, with instructions and practice. Timed symbol matching is built into the word- and picture-pair modules.

Limited energy? Keep the process focused.

Have post-exertional malaise (PEM) or limited energy? FogScore keeps the process focused, with step-by-step instructions, practice before each task and a 30-minute session limit. Rest or stop whenever needed; there are no mandatory scheduled breaks.

Choose app-guided testing on your own or an examiner-guided session for added support. You do not need to push through worsening symptoms. Choose a manageable session and stay in control of your pace.

Use a computer with a keyboard and pointer. Everything runs online in the browser, with no software download.

From instructions to insight

1. Choose your way to test. Use the self-directed app with instructions and practice, or join a session guided by an examiner.
2. Complete the tasks. A valid completed full battery provides your overall FogScore, four domain scores and task measurements.
3. Keep your history. Personal Tracking saves full assessments so you can review graphs, compare sessions and download reports.

See how FogScore is calculated.

A simple workflow for your clinic

Use the same focused battery for guided sessions in the office or remotely. Share a clinic assessment balance across your authorized team and keep patient records within your clinic account.

1. Set up your clinic. Add authorized examiners and clinic administrators.
2. Invite the participant. Enter their name and date of birth, then email a private assessment link. The invited participant does not need an account.
3. Guide the testing. Administer in the office or remotely, with in-app audio/video communication and examiner control of each module.
4. Review and share. Open current scores, select a prior assessment for comparison and download the reports.

Your clinic. Your team. Your records.

• Clinic-scoped records shared with your authorized team, separate from other clinics.
• Owners and delegated clinic administrators can add or remove staff.
• Clinic name, website and logo for a branded workspace, assessment and reports.
• Download scores as a spreadsheet-friendly CSV file or export the full clinic records.

Create your clinic account See clinic packs

Choose how you want to use FogScore