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  • Everything I do comes from seeing patients

  • and not having an answer for how to help them.

  • Right now, all of us are using mobile technologies

  • and computers for typing and texting,

  • and sending messages, generating language.

  • Folks with locked-in syndrome

  • don't have any way to do that!

  • Gregory had brain damage.

  • I don't think he'll ever be able to do this.

  • And Dr. Melanie said, "It is rewiring his brain.

  • "He'll be able to do it."

  • It was astounding to me.

  • It will be real fun to see where this goes.

  • It's almost science fiction.

  • When the phone rang at eight o'clock in the morning,

  • and it was the hospital and they told me

  • I needed to get there right away.

  • They found out it was

  • a brain stem major stroke.

  • Gregory lost his speech.

  • He lost the use of his body limbs.

  • He was instantly paralyzed and his speech was taken.

  • And we were given that it was locked-in syndrome.

  • And I had never heard of it, didn't know anything about it,

  • and I remember leaving the hospital that day

  • not understanding at all but thinking

  • that Greg's body was dead but his brain was alive,

  • and how horrific that was.

  • I am 100% dependent on my caregivers.

  • I am bathed, I have range of motion,

  • I am dressed, I have to have finished with my breakfast

  • and wait two hours before I can be laid down

  • for range of motion or any physical movement.

  • I'm physically put into my wheelchair

  • with a Hoyer lift and my caregiver's help.

  • I am a tube feeder; no liquid or food enters my mouth.

  • I would be at risk of getting aspiration pneumonia.

  • It frustrates me when people ignore me.

  • I may have something to say

  • and they will not look me in the face or ask me

  • if I have something I want to say.

  • It frustrates me when people act like I am deaf.

  • They talk around me to each other but not to me.

  • They don't include me in on the conversations.

  • It frustrates me when people ask the people around me

  • questions that I can answer, as if I weren't there.

  • My name is Dr. Melanie Fried-Oken.

  • I am a professor at Oregon Health & Science University

  • in Portland, Oregon.

  • So we do have a full agenda for the hour today,

  • mostly something from every team,

  • so let's start with software and look at Pivotal Tracker.

  • Our team is unique.

  • We have four different teams that together

  • have worked for 12 years to develop

  • our noninvasive brain-computer interface.

  • I am a speech-language pathologist.

  • I work primarily on our brain-computer

  • interface research projects.

  • Our brain-computer interface technology is primarily

  • aimed at people with very severe disabilities.

  • Locked-in syndrome is a term that we use

  • to describe someone who is essentially

  • locked into his or her body.

  • The kind of classic form of locked-in syndrome

  • involves only eye movement or blinking.

  • But there's also complete LIS, where the person has lost

  • all of their voluntary motor function.

  • So even the ability to blink or to move the eyes is lost.

  • If you have no voluntary motor function,

  • you have no way to communicate with another human being.

  • So that's the gap that we're trying to fill.

  • A lot of the brain-computer interface work

  • is being done in engineering labs or neuroscience labs

  • with graduate students and researchers,

  • and has not been tried.

  • We take our work out into the community

  • and we work with many individuals with severe disabilities.

  • Hey there, Greg!

  • Nice to see ya!

  • Doin' well today?

  • He says, "Yes." Good,

  • good to hear it.

  • Brain-computer interface allows someone to control

  • a computer just using only their brainwaves.

  • In our system, we have an electrode cap

  • that holds electrodes against the scalp,

  • and they can watch what the system is presenting to them.

  • Lift his head up a little bit

  • so that I can slide the cap on.

  • Okay, are you ready to go?

  • Okay, so it'll be, "This is fun."

  • Here we go.

  • There's one letter presented at a time

  • in the middle of the screen.

  • So it's just flash, flash, flash, letter, letter, letter.

  • You're watching that stream of letters go by,

  • and when you see the letter you want,

  • you have that involuntary brain

  • response of, "Yes, that one."

  • Instead of someone moving

  • their hand to press the letter M,

  • they're looking at a screen,

  • and when they see the letter M,

  • they get a special brainwave, a surprise brainwave,

  • that's called the P300.

  • And that P300 brainwave is being taken as their keystroke.

  • I have tested various programs created

  • by the engineers of computer programmers to see

  • if they are computer-friendly for people like me.

  • The exercises I do on the computer are challenging,

  • and I like being challenged.

  • All right, nice job!

  • That was awesome!

  • The kind of general wisdom in the BCI field right now

  • is that it typically works for healthy users

  • under controlled situations, you know?

  • Our BCI keyboard works reliably

  • for most healthy people who try it.

  • But when we take it out into the field,

  • it's less likely to work.

  • Post One, American Legion, Portland, Oregon.

  • And the Gregonator, Greg Bieker out there tonight, yeah!

  • The pie in the sky, the dream goal

  • for brain-computer interface would be to allow people

  • with severe disabilities and communication impairments

  • to communicate in real time.

  • That's really not possible with any kind of assistive

  • technology for communication at this point.

  • Obviously, we wanna make it faster,

  • make it better; that's what we're working towards.

  • But the first goal is to make it work consistently

  • and reliably for the people who need it.

  • God bless the USA

  • I have had people be fearful to approach me.

  • I would want them to know that I'm not contagious.

  • I would want them to know it's okay to approach me and talk.

  • I would want them to know I have a sense of humor.

  • I would want people to never have to experience

  • what I go through daily.

  • Locked-in syndrome is not for sissies!

  • I am excited to be on board for whatever

  • this new technology takes us.

  • I'm happy to be part of the team.

Everything I do comes from seeing patients

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B1 中級

脳波でロックイン症候群のロックを解除する方法 (How Brainwaves Can Unlock Locked-in Syndrome)

  • 9 0
    林宜悉 に公開 2021 年 01 月 14 日
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