Flicker

Change blindness research toolkit

Run flicker-paradigm change detection studies, entirely from your browser.

Build the experiment in the backend, share one link with participants, and export clean, millisecond-accurate data when you're done.

01

Configure everything

Instructions, prompts, colors, image pairs and every duration in the flicker cycle are editable in the backend — no code.

02

Run the paradigm

Image A, blank, image B, blank — repeated until the participant responds or the item times out.

03

Collect precise data

Reaction times are captured with a high-resolution clock and paired with a 4x4 grid localisation response.

04

Export and analyse

Download every participant, item response and grid selection as a CSV ready for your stats package.