Mehdi Ordikhani-Seyedlar: What happens in your brain when you pay attention?
Mehdi Ordikhani-Seyedlar: Ce se întâmplă în creierul tău când ești atent?
Mehdi Ordikhani-Seyedlar is a computational neuroscientist, researching brain signals and their usage in brain-machine interfaces. Full bio
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nu e chiar așa de ușor, nu?
in so many different directions at a time,
de așa de multe lucruri deodată
if you can stay focused.
dacă ne putem concentra pe ceva.
is all about what we are focusing on,
doar la lucrurile pe care ne concentrăm,
our brain is trying to filter out.
pe care încercăm să le filtrăm.
you direct your attention.
de a ne îndrepta atenția spre ceva.
you move your eyes towards something
îți îndrepți privirea spre ceva
you pay attention to something,
your direction of the eyes,
direcția ochilor tăi,
e cea care analizează împrejurimile.
the surrounding area,
brain-machine interfaces,
creier-computer,
the brain and the computer.
și a calculatorului.
we can build models for the computers,
modele pentru calculatoare,
how well our brain functions.
cât de bine ne funcționează creierul.
can be used as assistive devices
ca instrumente de asistență
nu doar prin mișcarea ochilor,
an interesting model for computers.
un model interesant pentru calculatoare.
what are the brainwave patterns
care sunt șabloanele undelor creierului
or when you look covertly.
there are two flickering squares,
există două pătrate ce pâlpâie,
at a slower rate than the other one.
you are paying attention to,
will start resonating in the same rate
să rezoneze pe aceeași frecvență
you are watching
when you pay overt attention,
când ai o atenție focalizată,
in one of the squares
direct la unul dintre pătrate
we saw that these flickering squares
am obsevat că cele două pătrate
from the back of their head,
of your visual information.
pentru procesarea informației vizuale.
when you pay covert attention.
când ai o atenție nefocalizată.
to look in the middle of the screen
să privească în mijlocul ecranului
să fie atenți la oricare dintre pătrate.
to either of these squares.
appeared in their brain signals,
ale pătratelor se regăseau în semnale,
which was paid attention to,
cel la care erau atenți oamenii,
the activation of the frontal area.
practic de activarea lobului frontal.
is responsible
it seems that it works as a filter
că funcționează ca un filtru
only from the right flicker
doar informația cu pâlpâit corespunzător,
coming from the ignored one.
provenită de la cel ignorat.
is indeed a key for attention,
este esențială pentru atenție,
cannot inhibit these distractors,
nu poate inhiba acești distractori
for a long time on a single task.
un timp îndelungat pe un singur lucru.
brain-machine interfaces
cognitive creier-computer
and he lost complete ability to speak.
și a rămas complet mut.
but there was no way to respond,
dar nu ne putea răspunde,
because he was illiterate.
pentru că era analfabet.
care ar putea vorbi pentru el?
îmi dau seama că ar fi posibil.
tiparele undelor cerebrale
about images or even letters,
la imagini sau litere,
a different brainwave pattern
un tipar diferit de unde cerebrale
communicate for people who can't speak?
să vorbească pentru cei ce nu pot?
the thoughts of a person in a coma?
gândurile cuiva în comă?
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