YouTube Shorts· Powered by Meta's TRIBE v2 fMRI AI
Your Shorts hook decides whether YouTube's algorithm distributes your video. See exactly what's happening in your viewer's brain — second by second.
No credit card required · First analysis free
Upload your video
Drop in your video file. MP4 or MOV, up to 30 seconds.
AI encodes neural responses
Meta's TRIBE v2 model predicts the fMRI brain response to each frame — which regions activate, at what intensity, at each second.
Get your results
Hook score 0–100, second-by-second brain engagement timeline, 3D brain heatmap, and drop-off diagnosis.
Hook score
0–100 neural engagement score for your opening hook
Brain timeline
Second-by-second activation chart across visual cortex, amygdala, and attention networks
3D brain heatmap
Spatial map of which brain regions activate during your video
Drop-off diagnosis
The exact frame where brain engagement drops — and why
YouTube Shorts uses completion rate as a primary distribution signal — the algorithm rewards videos where viewers watch to the end. Brain analysis shows the hook (first 3 seconds) is the single highest-leverage optimization point: a strong hook predicts completion rate more reliably than any other production variable. VidCognition analyzes vertical Shorts optimally — the 9:16 aspect ratio, fast-cut pacing, and text overlay patterns common in Shorts are all factored into the brain engagement model.
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Upload your first YouTube Shorts video and get neural engagement data in minutes. Your first analysis is free.