The neuro-viral blog
Attention is the metric. Here is how to keep it.
Practical, no-fluff guides on testing video before you spend, finding where videos lose viewers, and reading a predicted brain response honestly, what it shows, and what it cannot.
Reggie Alaskan Flow music video: brain response scan
We ran Reggie's Alaskan Flow music video through v2neuro. The predicted brain response peaks at 0:57 and falls fastest from 2:05 to 2:08, near the end.
Read the guide Trending nowCelebrity Traitors Series 2 trailer: brain response scan
We ran the BBC's Celebrity Traitors trailer for Series 2 through v2neuro. The predicted brain response peaks at 0:57 and falls fastest from 0:33 to 0:36.
Read the guide Trending nowLanterns trailer: where the predicted brain response peaks
We ran HBO Max's Lanterns midseason trailer through v2neuro. The predicted brain response peaks at 0:25 on one line, then falls fastest from 0:29.
Read the guide Hooks · 24 Sept 2026Why videos lose viewers in the first 3 seconds
What the predicted brain response shows in a video's opening seconds, and how to build a hook that holds from frame one.
Read the guide Evidence · 20 Sept 2026What AI can and cannot tell you about a video before you publish
An honest account of what predictive models can tell a creative team before launch, and the specific claims the evidence does not support.
Read the guide Explainer · 20 Sept 2026What is a cortical response, and why does it matter for video?
A plain-language explanation of cortical response, how a model predicts it from video alone, and the limits of that prediction.
Read the guide Craft · 20 Sept 2026What makes a video hook work? The first three seconds, explained
A hook is the opening moment that earns the next one. What goes into a strong hook, and how to review yours before you publish.
Read the guide Workflow · 20 Sept 2026How to choose between two video edits (without guessing)
A practical method for deciding between two cuts of the same video, what to compare, what to ignore, and how to keep it honest.
Read the guide Checklist · 20 Sept 2026A pre-launch review checklist for video creative
Structure, opening, pacing, sound, and the questions worth asking before you spend on distribution.
Read the guide Video strategy · 25 Aug 2026How to test video ads before you launch
Post-launch A/B testing burns budget to learn what a pre-launch attention test could tell you in minutes. The pre-flight workflow.
Read the guide Retention science · 25 Aug 2026Where does a video's predicted brain response fall off?
Almost every video has one moment where attention falls away. Why it happens, where it usually happens, and how to find yours before you post.
Read the guide Measurement · 25 Aug 2026Neuromarketing vs A/B testing
One tells you which version won, after you spend. The other tells you why, before you spend. When to use each, and why together beats either.
Read the guideFrequently asked questions
What is neuro-viral?
neuro-viral predicts an average viewer's second-by-second cortical response to a video, using an AI model trained on brain-imaging recordings of people watching video. Paste a video and see where the predicted response rises and falls, before you publish.
How can software predict a brain response without a person watching?
The model has learned the relationship between what is on screen and how the cortex responded, across many viewers and videos. At inference it estimates that average response for a new video directly. No viewer is measured and no personal data is involved.
Does this replace A/B testing?
No. A predicted response is a pre-launch creative filter that points at the moments worth another look. A/B testing is the real-world confirmation after launch. Used together, prediction narrows what is worth testing and the test confirms it.
Is it free to try?
Yes. Your first scan is free and needs no card.
See where the predicted brain response to your video falls
Free first scan, no card. Paste a link and get the predicted second-by-second response.