Experiment Instructions:

(Make your browser window as large as possible). Wait for the initial images to load and then press the Start Trial button. There will be 24 trials. If you detect a change, press the Detect button. If you do not think anything is changing, wait for the next trial to start (each trial lasts 60sec or until you press the Detect button).

NOTE: Download times for each trial's images will vary with net traffic.