Mehdi Ordikhani-Seyedlar: What happens in your brain when you pay attention?
مهدي أورديكاني-سييدلار: ماذا يحدث داخل دماغك عندما تعير شيئاً انتباهك؟
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,
اتجاهات مختلفة في نفس الوقت،
if you can stay focused.
is all about what we are focusing on,
يتمحور حول ما نركّز فيه،
our brain is trying to filter out.
التي يحاول دماغنا تصفيتها.
you direct your attention.
you move your eyes towards something
you pay attention to something,
your direction of the eyes,
the surrounding area,
brain-machine interfaces,
الآلية المعرفية،
the brain and the computer.
we can build models for the computers,
بناء نماذج للحواسيب،
how well our brain functions.
على مدى الكفاءة التي تعمل بها أدمغتنا.
can be used as assistive devices
نفسها كأجهزة مساعدة
an interesting model for computers.
نموذجاً مثيراً للاهتمام بالنسبة للحواسيب.
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,
توليها انتباهك،
will start resonating in the same rate
بالاستجابة بنفس المعدل
you are watching
when you pay overt attention,
في دماغك عندما تنتبه على نحو صريح،
in one of the squares
مباشرة إلى أحد المربعات
we saw that these flickering squares
وجدنا أن هذه المربعات الوامضة
from the back of their head,
of your visual information.
عن معالجة معلوماتك المرئية.
when you pay covert attention.
عندما تولي اهتماماً خفياً.
to look in the middle of the screen
أن ينظروا إلى منتصف الشاشة
to either of these squares.
appeared in their brain signals,
هذين ظهرا في إشارات أدمغتهم،
which was paid attention to,
the activation of the frontal area.
هو تنشيط المنطقة الأمامية.
is responsible
it seems that it works as a filter
only from the right flicker
التي تأتي من الوميض الصحيح
coming from the ignored one.
من الجزء الذي تم تجاهله.
is indeed a key for attention,
قصور الانتباه وفرط الحركة.
cannot inhibit these distractors,
لا يستطيع كبح هذه المشتتات،
for a long time on a single task.
لفترة طويلة على مهمة واحدة.
هو مثال واحد فحسب.
brain-machine interfaces
واجهات الدماغ الآلية الإدراكية هذه
and he lost complete ability to speak.
ففقد نتيجتها القدرة على الكلام تماماً.
but there was no way to respond,
ولكن لا مجال للرد،
because he was illiterate.
إيجاد أنماط موجات دماغية
about images or even letters,
a different brainwave pattern
أنماط موجات دماغية مختلفة
communicate for people who can't speak?
مع الأشخاص غير القادرين على الكلام؟
the thoughts of a person in a coma?
مرمي في غيبوبة؟
ABOUT THE SPEAKER
Mehdi Ordikhani-Seyedlar - NeuroscientistMehdi 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