Mehdi Ordikhani-Seyedlar: What happens in your brain when you pay attention?
מהדי אורדיקהני-סיידלר: מה קורה במוח כשאתם שמים לב למשהו?
Mehdi Ordikhani-Seyedlar is a computational neuroscientist, researching brain signals and their usage in brain-machine interfaces. Full bio
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in so many different directions at a time,
כיוונים בכל רגע נתון,
if you can stay focused.
is all about what we are focusing on,
מה שאנו מתמקדים בו,
our brain is trying to filter out.
you direct your attention.
תשומת הלב שלכם.
you move your eyes towards something
you pay attention to something,
אתם שמים לב למשהו,
your direction of the eyes,
the surrounding area,
the brain and the computer.
we can build models for the computers,
לבנות מודלים עבור המחשבים,
how well our brain functions.
can be used as assistive devices
an interesting model for computers.
למודל מעניין עבור מחשבים.
what are the brainwave patterns
or when you look covertly.
there are two flickering squares,
at a slower rate than the other one.
you are paying attention to,
will start resonating in the same rate
יתחילו להדהד באותו קצב
you are watching
when you pay overt attention,
in one of the squares
we saw that these flickering squares
שאותם ריבועים מהבהבים
from the back of their head,
of your visual information.
when you pay covert attention.
שמים לב בצורה סמויה.
to look in the middle of the screen
to either of these squares.
appeared in their brain signals,
בגלי המוח שלהם,
which was paid attention to,
the activation of the frontal area.
it seems that it works as a filter
only from the right flicker
coming from the ignored one.
מהריבוע שאתם מתעלמים ממנו.
is indeed a key for attention,
cannot inhibit these distractors,
לא יכול לרסן את ההפרעות הללו,
for a long time on a single task.
and he lost complete ability to speak.
והוא איבד את היכולת לדבר.
but there was no way to respond,
אך לא היתה לו דרך להגיב,
because he was illiterate.
כיוון שלא ידע קרוא וכתוב.
about images or even letters,
או אפילו אותיות,
a different brainwave pattern
communicate for people who can't speak?
במקום אנשים שאינם יכולים לדבר?
the thoughts of a person in a coma?
של אדם מחוסר הכרה?
Reviewed by Ido Dekkers
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