Mehdi Ordikhani-Seyedlar: What happens in your brain when you pay attention?
메디 오르디카니 세이드라 (Mehdi Ordikhani-Seyedlar): 집중할 때 우리 뇌에서 일어나는 일들
Mehdi Ordikhani-Seyedlar is a computational neuroscientist, researching brain signals and their usage in brain-machine interfaces. Full bio
Double-click the English transcript below to play the video.
in so many different directions at a time,
집중력이 흐트러지기 때문입니다.
if you can stay focused.
사실 매우 놀라운 일이죠.
is all about what we are focusing on,
몰입하는 것이라고 생각을 합니다만
our brain is trying to filter out.
걸러내고자 애쓰는 과정을 말합니다.
you direct your attention.
you move your eyes towards something
어떤 대상으로 이동하고
you pay attention to something,
your direction of the eyes,
the surrounding area,
관한 연구를 하죠.
the brain and the computer.
we can build models for the computers,
컴퓨터 모델을 만들 수 있으니까요.
how well our brain functions.
작동하는지 판단할 수 있게 됩니다.
can be used as assistive devices
보조 장치의 역할을 하며
an interesting model for computers.
있어서 흥미로운 요소입니다.
what are the brainwave patterns
or when you look covertly.
어떻게 다른지 알고 싶었습니다.
there are two flickering squares,
깜빡이는 걸 볼 수 있습니다.
at a slower rate than the other one.
느린 속도로 깜빡거리죠.
you are paying attention to,
will start resonating in the same rate
깜빡거리는 속도와 동일한 속도로
you are watching
보고 있는지 추적할 수 있죠.
when you pay overt attention,
일어나는 일을 알기 위해
in one of the squares
we saw that these flickering squares
from the back of their head,
of your visual information.
when you pay covert attention.
뇌에서 어떤 일이 일어나는가였죠.
to look in the middle of the screen
화면의 중앙만을 바라보고
to either of these squares.
집중하지 않도록 말이죠.
appeared in their brain signals,
뇌파 신호에 나타났습니다.
which was paid attention to,
the activation of the frontal area.
관여했다고 볼 수 있습니다.
높은 연관이 있습니다.
it seems that it works as a filter
한다고 볼 수 있습니다.
only from the right flicker
들어온 정보는 처리하지만
coming from the ignored one.
정보는 억제하려고 하죠.
is indeed a key for attention,
집중의 실질적인 열쇠입니다.
(ADHD = 주의력 결핍 과잉행동장애)
cannot inhibit these distractors,
방해 자극을 차단하지 못합니다.
for a long time on a single task.
못하는 이유가 그 때문이죠.
적용할 수 있습니다.
and he lost complete ability to speak.
언어 능력을 완전히 잃었습니다.
but there was no way to respond,
전혀 대답을 하지 못하셨죠.
because he was illiterate.
필담도 할 수 없었습니다.
컴퓨터가 있으면 좋겠다고 생각했죠.
저는 이 분야에 있으면서
about images or even letters,
알 수 있다고 생각해보세요.
a different brainwave pattern
보이는 뇌파 패턴과
communicate for people who can't speak?
컴퓨터가 대화하게 되지 않을까요?
the thoughts of a person in a coma?
읽을 수 있게 된다면 어떨까요?
Reviewed by Jihyeon J. Kim
ABOUT THE SPEAKERMehdi Ordikhani-Seyedlar - Neuroscientist
Mehdi Ordikhani-Seyedlar is a computational neuroscientist, researching brain signals and their usage in brain-machine interfaces.
Why you should listen
Mehdi Ordikhani-Seyedlar is a research scientist interested in brain-wave patterns generated by neural activities in the brain. Since embarking on his research on neuroscience, Ordikhani-Seyedlar has been working on different brain functions such as learning, memory, pain and, more recently, visual attention in humans. He also conducted a part of his research on monkeys when he was in Dr. Miguel Nicolelis' lab at Duke University. His findings help implement more accurate brain-machine interfaces to treat people who are suffering from attention deficiency.
After receiving his Ph.D in Biomedical Engineering, Ordikhani-Seyedlar was offered a postdoctoral position by Duke University to develop algorithms to process large-scale neuronal activity and brain-machine interfaces. However, due to political complications in the United States, Ordikhani-Seyedlar -- an Iranian citizen -- changed his plan to continue his brain research outside the US for some time.
As a passionate neuroscientist and neuroengineer, Ordikhani-Seyedlar's aim is to improve brain pattern detectability in computers. This enhances the ability of brain-machine interfaces substantially to better target the defected brain function which in turn enhances the sustainability of treatment effect.
Mehdi Ordikhani-Seyedlar | Speaker | TED.com