Mehdi Ordikhani-Seyedlar: What happens in your brain when you pay attention?
Mehdi Ordikhani-Seyedlar: Que ocorre no cerebro cando pos atención?
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,
cara a distintas direccións ao mesmo tempo
if you can stay focused.
se conseguides centrarvos en algo.
is all about what we are focusing on,
daquilo no que tratamos de concentrarnos,
our brain is trying to filter out.
que o cerebro tenta filtrar.
you direct your attention.
you move your eyes towards something
movedes os ollos cara a algo
you pay attention to something,
poñedes a atención en algo
your direction of the eyes,
a dirección dos ollos,
the surrounding area,
the brain and the computer.
we can build models for the computers,
modelos para ordenadores,
how well our brain functions.
como funciona o cerebro.
can be used as assistive devices
como dispositivos de asistencia
non só cos nosos ollos
an interesting model for computers.
un modelo interesante para ordenadores.
what are the brainwave patterns
cales son os padróns cerebrais
or when you look covertly.
ou ao mirar indirectamente.
there are two flickering squares,
at a slower rate than the other one.
you are paying attention to,
poñades a atención,
will start resonating in the same rate
resoarán ao mesmo ritmo
you are watching
onde estades mirando
when you pay overt attention,
cando se pon atención directa,
in one of the squares
directamente un dos cadrados
we saw that these flickering squares
vimos que os cadrados que chiscaban
from the back of their head,
of your visual information.
de procesar a información visual.
when you pay covert attention.
ao poñer atención indirecta.
to look in the middle of the screen
para o centro da pantalla,
to either of these squares.
calquera deses cadrados.
appeared in their brain signals,
aparecían nos sinais cerebrais
which was paid attention to,
the activation of the frontal area.
a activación da área frontal.
que temos como humanos.
it seems that it works as a filter
que traballa como un filtro
only from the right flicker
só desde o cadrado
coming from the ignored one.
que vén do cadrado que ignoramos.
is indeed a key for attention,
é unha chave para a atención,
cannot inhibit these distractors,
pode inhibir eses distractores,
for a long time on a single task.
concentrar nunha tarefa moito tempo.
and he lost complete ability to speak.
e perdeu a capacidade de falar.
but there was no way to respond,
pero non podía responder,
because he was illiterate.
about images or even letters,
ou mesmo en letras,
a different brainwave pattern
un padrón cerebral diferente
communicate for people who can't speak?
pola xente que non pode falar?
the thoughts of a person in a coma?
os pensamentos dunha persoa en coma?
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