Live lecture (15–25 min)
Play full-screen in classroom mode. At each violet Pause & Think card, pause during the 10-second countdown, let students vote (hands, clickers or a poll), then resume — the narrator reveals and explains the answer.
Self-study / flipped classroom
Share this page. Interactive mode pauses automatically, records answers locally in the browser and flows straight on into the narrated explanation. Use the discussion prompts below for the follow-up seminar.
What is real and what is simulated
Scans marked REAL are published patient/volunteer images (credited). PET maps marked SIMULATED are illustrative patterns built on real anatomy (MNI152 template, Harvard-Oxford atlas, FreeSurfer fsaverage). Photographic scenes are AI illustrations grounded in real reference photos.