Mehdi Ordikhani-Seyedlar: What happens in your brain when you pay attention?
Mehdi Ordikhani-Seyedlar: Vad händer i din hjärna när du är uppmärksam?
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,
dras åt så många håll samtidigt
if you can stay focused.
om du kan hålla dig fokuserad.
is all about what we are focusing on,
handlar om vad vi fokuserar på,
our brain is trying to filter out.
vad vår hjärna försöker filtrera bort.
you direct your attention.
riktar din uppmärksamhet på.
you move your eyes towards something
rör sig mot något
you pay attention to something,
your direction of the eyes,
dina ögons riktning, är framåt,
the surrounding area,
brain-machine interfaces,
hjärna-maskin-gränssnitt,
the brain and the computer.
we can build models for the computers,
kan vi bygga modeller åt datorer,
våra hjärnor fungerar.
how well our brain functions.
som assistenter i behandlingar.
can be used as assistive devices
inte bara med våra ögon
an interesting model for computers.
till en intressant modell för datorer.
what are the brainwave patterns
i hjärnvågorna ser ut
or when you look covertly.
och när man tittar omedvetet.
två blinkande fyrkanter,
there are two flickering squares,
at a slower rate than the other one.
långsammare än den andra.
you are paying attention to,
som du riktar din uppmärksamhet mot
will start resonating in the same rate
börja pulsera i samma takt
you are watching
when you pay overt attention,
när man är medvetet uppmärksam
in one of the squares
på en av fyrkanterna
we saw that these flickering squares
såg vi att dessa blinkande fyrkanter
from the back of their head,
visuell information.
of your visual information.
when you pay covert attention.
när man är omedvetet uppmärksam.
to look in the middle of the screen
att titta mitt på skärmen
mot en av fyrkanterna.
to either of these squares.
appeared in their brain signals,
syntes i deras hjärnsignaler,
which was paid attention to,
som tog hand om den här informationen.
var en aktivering i den främre delen.
the activation of the frontal area.
is responsible
it seems that it works as a filter
verkar fungera som ett filter
som kommer från rätt blinkning -
only from the right flicker
är riktad mot - komma in,
coming from the ignored one.
som kommer från den du ignorerar.
is indeed a key for attention,
är en nyckel för uppmärksamhet,
cannot inhibit these distractors,
kan inte hindra distraktioner,
for a long time on a single task.
fokusera länge på samma uppgift.
brain-machine interfaces
hjärna-maskin-gränssnitt
and he lost complete ability to speak.
och tappade helt förmågan att tala.
but there was no way to respond,
men hade inget sätt att svara,
because he was illiterate.
har varit i det här fältet,
kunna vara möjligt.
mönstren i hjärnvågorna
eller till och med bokstäver,
about images or even letters,
a different brainwave pattern
ett annat hjärnvågsmönster
communicate for people who can't speak?
åt människor som inte kan tala?
the thoughts of a person in a coma?
hos en person i koma?
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