Mehdi Ordikhani-Seyedlar: What happens in your brain when you pay attention?
Mehdi Ordikhani-Seyedlar: Čo sa deje v našom mozgu, keď sa sústredíme?
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,
chvíli rozrušovaná mnohými podnetmi,
if you can stay focused.
že sa človek dokáže na niečo sústrediť.
is all about what we are focusing on,
ide iba o to, na čo sa sústredíme,
our brain is trying to filter out.
sa náš mozog pokúša dať bokom.
you direct your attention.
ako upriamiť našu pozornosť.
you move your eyes towards something
nasmerujeme oči k niečomu,
mimovoľná pozornosť.
you pay attention to something,
sa sústredíme na niečo
your direction of the eyes,
the surrounding area,
prostredie okolo vás,
brain-machine interfaces,
prepojenie mozgu a stroja,
the brain and the computer.
na prepájanie mozgu a počítača.
we can build models for the computers,
dokážeme vytvárať modely pre počítače
how well our brain functions.
ako dobre naše mozgy pracujú.
nefunguje tak, ako by mal,
can be used as assistive devices
pomocné zariadenia
nie iba pomocou našich očí,
an interesting model for computers.
zaujímavý model pre počítače.
what are the brainwave patterns
ako vyzerajú vzory mozgových vĺn
or when you look covertly.
there are two flickering squares,
dva blikajúce štvorce,
at a slower rate than the other one.
ako druhý.
you are paying attention to,
štvorcov sa človek sústredí,
will start resonating in the same rate
rezonovať rovnakou rýchlosťou
na ktorý sa sústredíme.
mozgových signálov
you are watching
when you pay overt attention,
mozgu, keď sa úmyselne sústredíte,
in one of the squares
pozreli priamo do jedného zo štvorcov
we saw that these flickering squares
prekvapivé, že tieto blikajúce štvorce
from the back of their head,
of your visual information.
vizuálnych informácií.
when you pay covert attention.
venujeme neúmyselnú pozornosť.
to look in the middle of the screen
aby sa pozreli do stredu obrazovky
to either of these squares.
appeared in their brain signals,
objavili v mozgových signáloch daných ľudí
which was paid attention to,
tá, na ktorú sa človek sústredil,
the activation of the frontal area.
aktiváciou predného časti mozgu.
is responsible
it seems that it works as a filter
funguje ako filter,
only from the right flicker
len z toho správneho blikajúceho štvorca,
coming from the ignored one.
ktoré prichádzajú z ignorovaného štvorca.
is indeed a key for attention,
je kľúčová pre sústredenie sa
správania s hyperaktivitou.
cannot inhibit these distractors,
vplyvy, ktoré narušujú jeho pozornosť,
for a long time on a single task.
sústrediť na jednu vec dlhšiu dobu.
jeho mozog napojený na počítač,
narušujúce jeho pozornosť?
brain-machine interfaces
medzi mozgom a strojom môžeme použiť
and he lost complete ability to speak.
úplne stratil schopnosť rozprávať.
but there was no way to respond,
ale nijakým spôsobom im nevedel odpovedať.
because he was illiterate.
pretože bol negramotný.
v budúcnosti možné.
vzory mozgových vĺn,
about images or even letters,
o obrázkoch alebo aj písmenách.
a different brainwave pattern
iný vzor mozgových vĺn
communicate for people who can't speak?
namiesto ľudí, ktorí to sami nedokážu?
the thoughts of a person in a coma?
myšlienky ľudí v kóme?
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