AI “Brain Decoder” …

AI Translates Human Brain Activity

Alexander Huth, assistant professor of neuroscience and computer science and his collogue from The University of Texas at Austin (UT Austin). Researchers have developed an artificial intelligence-based “brain decoder” that can translate brain activity into a continuous stream of text.


Researchers have created a non-invasive brain decoder that can translate stories heard by participants into a string of text or continuous stream of text, based on their MRI scans. The team says that this technology could one day aid communication in people who are mentally conscious but physically unable to speak, such as stroke patients.

Users are able to read the brain activity or thought of another human in understandable language. Artificial Intelligence uses AI transcription to convert speech into text document.

Users uses machine learning to build software that decode brains activity into text document i.e., when someone speaking then it continuously converts speech into the text in understandable language.so, listener can easily understand what the person wants to tell.


Schematic description of BCIs (Brain-Computer Interface) based on AI. With the help of AI to process signals, the applications of BCIs have been extended greatly, including cursor control, auditory sensation, limb control, spelling devices, somatic sensation, and visual prosthesis. The circuit can be described as follows. First, micro-electrodes detect signals from the human cerebral cortex and send them to the AI. Second, the AI takes charge of signal processing, which includes feature extraction and classification. Third, the processed signals are output to achieve the abovementioned functions. Finally, feedback is sent to the human cortex to adjust the function. BCIs, brain-computer interfaces; AI, artificial intelligence.

These “smart” BCIs including motor and sensory BCIs have shown notable clinical success, improved the quality of paralyzed patients’ lives and strokes patience, expanded the athletic ability of common people and accelerated the evolution of robots and neurophysiological discoveries.

With the large explosion in technology, the border between humans and machines has begun to narrow. Our spectacular science fictions describing “mind control” have gradually come true with the help of machines. The frontiers of these new techniques are brain-computer interfaces (BCIs) and artificial intelligence (AI). Experimental paradigms for BCIs and AI were usually developed and applied independently from each other. However, scientists now prefer to combine BCIs and AI, which makes it possible to efficiently use the brain’s electric signals to maneuver external devices.

Early studies focused on the control of personal computer mouse cursors for paralyzed patients through BCIs with high feasibility. The fundamental components of a cursor control BCI include a sensor to record neural signals, a decoder to interpret movement intentions, and a computer cursor that interacts with the external environment.

While breakthrough medical advances are no doubt good news and potentially life-changing for patients struggling with debilitating ailments.

The decoder is trained using MRI brain scan data collected while a participant listens to hours of podcasts. Then, if the participant agrees to have their thoughts decoded, they will be tasked with listening to a new story or imagining themselves telling a story. Using the brain scans generated from this, the system can generate a stream of corresponding text that describes what was being said or thought.

The decoded language that the system outputs is meant to capture the gist of what the participant thought, rather than create a perfect word-for-word transcript. However, about half the time, the decoder can produce text that closely or precisely captures the intended meaning. 

Everything which has advantages must have some drawbacks or disadvantages also here is some disadvantage: -.

Disadvantages of Brain Decoding.

1.MRI scanner is bulky and expansive.

2.It also affects the mental privacy.

3.It can be used in dangerous way also.

4.This allow the blood flows more and more in brain.