Participant Briefing

Review the 3-step experimental procedure below. Once ready, initiate your session to begin trial 1 immediately.

20 Automated Trials (~3 min total)

Anonymous response logging

Immediate trial launch

STEP 01

Watch Sequence

Stimulus Presentation

Four sequential digits appear in the center reticle one at a time for 1,000ms each.

4 digits · 1,000ms each

STEP 02

Blurred Target Digit

The 5th digit appears intentionally blurred for 1,000ms. Keep your eyes on the center.

1 blurred target · 1,000ms

STEP 03

Input & Confidence

Enter the digit you perceived (0–9) and rate confidence from 1 (lowest) to 5 (highest).

Keypad (0–9) · Confidence (1–5)

Ensure your display brightness is comfortable and minimize peripheral distractions before starting.

Route: Direct to Trial 01 · 20 trials sequential · No personal data collected