2023-08-31 06:00:13
Imagine listening to a song by Pink Floyd, not recorded in the studio or at a concert, but generated by the brain activity of people listening to the hit “Another Brick in the Wall, Part 1”. A team of researchers succeeded in accomplishing this feat, opening up fascinating perspectives for communication with paralyzed patients.
Image d’illustration Pixabay
In a world first, researchers have managed to recreate a recognizable melody using only recordings of brain activity. Published in the journal PLOS Biology, this research could have profound implications for brain-machine interfaces, used to help paralyzed people communicate. and unable to speak.
Led by Dr. Robert Knight, professor of psychology and neuroscience at the University of California (The University of California is an American university, founded in 1868, of which…), Berkeley, the team used electrodes implanted in the brain (The brain is the main organ of the central nervous system of animals. The brain processes…) of 29 epileptic patients to capture their cerebral activity while listening (On a sailboat, a sheet is a rope used to regulate the angle of the sail in relation to…) of a three-minute extract (Primary form of a document: Law: one minute is the original of an act. …) of the song. The goal was to identify the region of the brain responsible for their epileptic seizures.
These recordings were then fed into a computer algorithm to reproduce the song heard by the patients. Principal researcher and long-time musician Dr. Ludovic Bellier notes that the experiment also revealed new regions of the brain involved in detecting rhythm and differentiating types of sounds.
Dr. Alexander Pantelyat, neurologist and director of the Johns Hopkins Center for Music and Medicine, who was not involved in the research, points out that these findings could be used to improve the quality of signal detection for brain-machine interfaces. He sees this as a source of hope for people with communication difficulties due to neurological diseases such as amyotrophic lateral sclerosis (ALS) or traumatic brain injury.
However, obstacles remain. The use of implanted electrodes is invasive and current technology does not yet make it possible to capture a quality of speech. refers…) comparable from the scalp (The scalp designates the part of the skin of the skull which…). Dr. Knight talks about the need (Needs are at the level of the interaction between the individual and the environment. It is…) for better electrodes and more quantity (Quantity is an umbrella term for metrology (account, amount); a scalar, etc. of data (In information technology (IT), a datum is an elementary description, often…) to refine the experience.
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