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NEW YORK DAWN™ > Blog > Health > Mind wave decoder helps management spinal twine stimulation
Mind wave decoder helps management spinal twine stimulation
Health

Mind wave decoder helps management spinal twine stimulation

Last updated: April 29, 2025 3:43 am
Editorial Board Published April 29, 2025
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Researchers in Ismael Seáñez’s lab have developed a sort of decoder to revive communication between the mind and the realm beneath a spinal twine harm. By way of experiments of their lab with 17 human topics with out a spinal twine harm, they have been in a position to cue motion within the decrease leg with transcutaneous spinal twine stimulation, or noninvasive, exterior electrical pulses. Credit score: Carolyn Atkinson

When an individual sustains an harm to the spinal twine, the conventional communication between the mind and the spinal circuits beneath the harm is interrupted, leading to paralysis. As a result of the mind is functioning usually, as is the spinal twine beneath the harm, researchers have been working to re-establish communication to permit for rehabilitation and doubtlessly restore motion.

Ismael Seáñez, assistant professor of biomedical engineering within the McKelvey Faculty of Engineering at Washington College in St. Louis and neurosurgery at WashU Drugs, and members of his lab, together with Carolyn Atkinson, a doctoral scholar, have developed a sort of decoder to revive that communication. By way of experiments of their lab with 17 human topics with out a spinal twine harm, they have been in a position to cue motion within the decrease leg with transcutaneous spinal twine stimulation, or noninvasive, exterior electrical pulses.

Outcomes of the analysis seem within the Journal of NeuroEngineering and Rehabilitation.

The crew used a particular cap fitted with noninvasive electrodes that measure mind exercise by means of electroencephalography (EEG). Whereas sporting the cap, seated volunteers have been requested to increase their leg on the knee, then to solely take into consideration extending their leg—whereas retaining it nonetheless—so researchers may file the mind waves in each workouts.

The crew supplied the neural exercise to the decoder, or algorithm, so it may find out how the mind waves act in each circumstances. They discovered that the precise motion and imagined motion used related neural methods.

“After we give the decoder this data, it learns to predict based on neural activity whenever there is movement or no movement,” Seáñez stated. “We show that we can predict whenever someone is thinking about moving their leg, even if their leg does not actually move.”

The crew used controls to make sure that the volunteers have been actually imagining motion and never truly shifting.

“Whenever people move, this can introduce signal noise, and we want to make sure that the signal noise is not what we’re learning to predict,” Seáñez stated. “It’s movement intention or brain activity that we want to predict, so we have people imagine that they’re extending their leg, and use the same algorithm that has been trained on people moving to predict whether they were imagining or not.”

Seáñez stated this reveals two issues: “One, that it’s more likely that we’re decoding movement intention and not an artifact, or noise; and second, whenever we employ this on people with spinal cord injury who will not have that ability to actually move their legs for us to label the data, we could use their imagination of moving a leg to train our decoder.”

Seáñez stated the proof-of-concept research is a primary step towards growing a noninvasive brain-spine interface that makes use of real-time predictions to ship transcutaneous spinal twine stimulation to bolster voluntary motion in a single joint in rehabilitation in sufferers with a spinal twine harm.

Going ahead, the crew plans to check a generalized decoder skilled on knowledge from all members that might decide whether or not a common decoder may carry out in addition to a personalised one and simplify its use in scientific settings.

Extra data:
Carolyn Atkinson et al, Improvement and analysis of a non-invasive brain-spine interface utilizing transcutaneous spinal twine stimulation, Journal of NeuroEngineering and Rehabilitation (2025). DOI: 10.1186/s12984-025-01628-6

Offered by
Washington College in St. Louis

Quotation:
Mind wave decoder helps management spinal twine stimulation (2025, April 28)
retrieved 28 April 2025
from https://medicalxpress.com/information/2025-04-brain-decoder-spinal-cord.html

This doc is topic to copyright. Other than any honest dealing for the aim of personal research or analysis, no
half could also be reproduced with out the written permission. The content material is supplied for data functions solely.

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