An AI “mind-reading” tool can reconstruct what you’re looking at based on a brain scan
A new AI tool can guess what you’re looking at just by analyzing your brain scans—and recreate that image with remarkable precision. It can go the other way too, and predict a person’s brain activity based on what they’re looking at. In the image above, for example, the left-hand image of each pair is what…
An advanced AI tool has been developed that can analyze brain scans to reconstruct what a person is looking at, and even predict their brain activity based on visual stimuli. The tool, created by Michal Irani and her team at the Weizmann Institute of Science in Israel, has shown remarkable precision in recreating the images seen by study participants.
This technology could potentially help unlock communication for people with locked-in syndrome, or allow scientists to recreate the content of dreams. However, the implications raise ethical concerns about surreptitiously extracting information about someone's inner thoughts without their consent. The tool works by analyzing brain scans taken from volunteers who were shown hundreds of images while in a functional magnetic resonance imaging (fMRI) scanner.
The researchers then used these scans to train an AI model to predict the structure and content of the images viewed. By combining an "encoder" that predicts brain activity based on an image, and a "decoder" that reconstructs images from brain scan data, the team was able to improve the accuracy of the reconstructions. The model was able to generate images of a leopard, cake, and other objects with greater detail and fidelity than previous attempts.
While the tool shows great potential, it also highlights the need for careful consideration of privacy and consent when using such mind-reading technologies.
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