Subscribe now

Mind

AI reads brain activity to reveal what part of a movie you're watching

An artificial intelligence could gauge what characters and locations people were viewing in the film (500) Days of Summer based on the activity of their neurons

By Moheb Costandi

26 June 2024

A scene from the film

A viewer’s brain activity told scientists when characters in the film (500) Days of Summer were on screen

Collection Christophel / Alamy

Movie characters and locations can be deciphered by monitoring the activity of people’s neurons while they watch a film, a discovery that could help us understand how the brain stores memories as they are being made.

A deep brain structure called the hippocampus, which is critical for memory, contains neurons that encode the identity of objects, such as tools or buildings. The cells involved then respond to stimuli depicting those objects. But a lot of our knowledge…

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox! We'll also keep you up to date with New Scientist events and special offers.

Sign up

To continue reading, subscribe today with our introductory offers

Unlock this article

No commitment, cancel anytime*

Offer ends 15 January 2025.

*Cancel anytime within 14 days of payment to receive a refund on unserved issues.

Inclusive of applicable taxes (VAT)

or

Existing subscribers

Sign in to your account