Science & Tech · Science & Environment · 1 hr ago
Three lab-grown mini-brains decode Braille with 83% accuracy
A University of Bristol team used lab-grown brain organoids to identify Braille letters in experiments.
The organoids, each less than a millimetre wide, received electrical signals from a sensor that scanned the letters.
One organoid identified letters correctly in 61% of attempts, while three connected organoids reached 83%.
The team does not know why combining them improved the results, but thinks their different activity patterns may complement one another.
The work is part of efforts to develop energy-efficient computing using living neural tissue, inspired by the human brain’s low energy use.
The three-organoid setup also kept much of its accuracy when signals contained noise, though missing data and unusual signal spikes reduced performance.
Researchers plan to test textures and other forms of touch next, and eventually study tasks where an organoid receives feedback on its own actions.
Researchers used lab-grown brain organoids to identify Braille letters with an average accuracy of 83% when three organoids were connected.
A single organoid identified the letters with an average accuracy of 61%.
The organoids were made from forebrain nerve cells and were each less than one millimeter across.
The researchers said they do not know why combining three organoids improved accuracy.
The study was reported in Frontiers in Artificial Intelligence.
- Who
- A research team led by Tianyi Liu of the University of Bristol.
- What
- The team tested whether brain organoids could identify Braille letters. Three connected organoids achieved 83% average accuracy.
- When
- The articles were published on October 16, 2026; the experiment date is not stated.
- Where
- The research was conducted using FinalSpark’s Neuroplatform; the University of Bristol is in Bristol.
- Why
- The researchers are exploring organoids for information technology, partly because the human brain is highly energy-efficient.
This story does not have two clearly opposing sides.
The researchers converted scans of Braille letters into electrical impulses that the organoids could process.
A single organoid identified the letters with 61% average accuracy, while an ensemble of three achieved 83%.
The articles reporting the research were published.
- Three-organoid accuracy
- 83% average
- Single-organoid accuracy
- 61% average
- Organoid size
- Less than 1 millimeter in diameter
- Cells per organoid
- Around 10,000 nerve and supporting cells
- Braille set
- Codes for 26 letters
4 sources
Brain organoids ‘read’ Braille with 83% accuracy in biohybrid computing breakthrough
Zellhaufen entziffern 83 Prozent: Drei gezüchtete Mini-Gehirne können Blindenschrift lesen
Mini brain organoids 'read' braille in key step toward biohybrid computing
What people are saying
We can take information from a real touch sensor, put it into a form that a living neural network can receive, and then retrieve meaningful information from the organoid’s response.
The next step is to go beyond Braille; we are interested in aspects such as textures, edges and different types of touch, and eventually closed-loop tasks in which the organoid receives feedback on its own actions.