Cognitive Tasks

Patient self-administered battery · 5 tasks · approximately 20 minutes

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Do this in one sittingSet aside around 20 minutes and complete all five tasks without stopping. Closing the tab and resuming later is possible but not ideal, as it reduces the usefulness of some results.
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Find a quiet spaceBackground noise and distractions affect your response times and accuracy. A quiet room with minimal interruptions gives the most accurate picture.
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Use whichever device you're most comfortable withPhone, tablet, or computer all work. If using a computer, use the spacebar for the tapping tasks; it is faster and more accurate than clicking.
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Keep this tab open and in the foregroundSwitching apps or minimising the browser during a task may interfere with timing. If you need a break, finish the current task first.

These tasks do not produce a diagnosis. Results are one input among many and will be interpreted by your clinician alongside other assessments. Performance can be affected by sleep, stress, anxiety, medication, and many other factors.

Privacy: All responses are processed locally in your browser. Nothing leaves your device until you choose to download and share the encrypted results file.

Important: These tasks are for information gathering only. They are not diagnostic by themselves. Performance can be affected by sleep, stress, anxiety, medication, device speed, distractions, and practice effects.

Privacy: Everything runs locally in this browser. Nothing is sent anywhere until you download and share the encrypted results file with your clinician.

Your Information

Full Name *

Date of Birth *

Completion Date

Before you start

Are you currently in a quiet, distraction-free place?

1Digit Span

Digits will appear one at a time. The task runs in two halves, one FORWARD (type the digits in the same order you saw them) and one BACKWARD (type them in reverse order). A banner will appear clearly before the direction changes, and the on-screen label always tells you which direction you are on.

Examples
Forward: screen shows 1 → 2 → 3 → you type 123
Backward: screen shows 3 → 2 → 1 → you type 123 (last digit first)

Important: Please do not write down or type the digits anywhere else while they are showing. The task is testing your memory, not your note-taking. Do your best to hold them in mind.

Press Start when ready.

2Continuous Performance Test

Press Space or tap the box only when you see X. For all other letters, do nothing.

Press Start when ready.

3Corsi Block Task

Watch the sequence in which the blocks are highlighted, then tap them back. The task runs in two halves, one FORWARD (tap in the same order) and one BACKWARD (tap in reverse order). A banner will appear on screen before the direction changes, and the on-screen label always tells you which direction you are on.

Examples
Forward: blocks light up top-left → centre → bottom-right → you tap top-left → centre → bottom-right
Backward: blocks light up top-left → centre → bottom-right → you tap bottom-right → centre → top-left (last block first)

4Go / No-Go

Press Space or tap the box for green circles (GO). Do not respond to red squares (STOP).

Press Start when ready.

5Processing Speed

Each symbol (like @, #, $) has a matching digit (1–9), shown in the key below. When a symbol appears in the box, tap or click the matching digit. The key stays on screen throughout, so there is nothing to memorise. Work as quickly and accurately as you can.

Press Start when ready.

Cognitive Tasks

Cognitive Tasks

Your Information

Before you start

1Digit Span

2Continuous Performance Test

3Corsi Block Task

4Go / No-Go

5Processing Speed

All Tasks Complete