Mehdi Ordikhani-Seyedlar: What happens in your brain when you pay attention?
Mehdi Ordikhani-Seyedlar: Cosa succede nel cervello quando si presta attenzione?
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,
verso tante direzioni nello stesso tempo,
if you can stay focused.
non è cosa da poco.
is all about what we are focusing on,
solo quello su cui ci stiamo concentrando,
our brain is trying to filter out.
che il nostro cervello cerca di filtrare.
you direct your attention.
di rivolgere l'attenzione.
you move your eyes towards something
muoviamo gli occhi verso qualcosa
you pay attention to something,
si presta attenzione a qualcosa
your direction of the eyes,
la direzione degli occhi,
the surrounding area,
l'area intorno a voi,
brain-machine interfaces,
the brain and the computer.
il cervello e il computer.
sono importanti per noi,
we can build models for the computers,
modelli per i computer
how well our brain functions.
se il cervello funziona bene.
can be used as assistive devices
usati come dispositivi di assistenza
non solo con gli occhi,
an interesting model for computers.
un modello interessante per i computer.
what are the brainwave patterns
l'andamento delle onde cerebrali
or when you look covertly.
in modo esplicito o implicito.
there are two flickering squares,
ci sono due quadrati lampeggianti,
at a slower rate than the other one.
più lentamente dell'altro.
you are paying attention to,
a cui state prestando attenzione,
will start resonating in the same rate
a vibrare alla stessa velocità
you are watching
dove state guardando
when you pay overt attention,
quando usate l'attenzione esplicita,
in one of the squares
direttamente in uno dei quadrati
we saw that these flickering squares
abbiamo visto che i quadrati lampeggianti
segnali celebrali
from the back of their head,
della testa,
of your visual information.
le informazioni visive.
when you pay covert attention.
quando si usa l'attenzione implicita.
to look in the middle of the screen
al centro dello schermo
to either of these squares.
appeared in their brain signals,
apparivano nei segnali cerebrali,
which was paid attention to,
cui si faceva attenzione,
the activation of the frontal area.
era l'attivazione del lobo frontale.
is responsible
più avanzate degli umani.
it seems that it works as a filter
come un filtro
only from the right flicker
solo dal lampeggio giusto
coming from the ignored one.
che vengono da quello che viene ignorato.
è fondamentale per l'attenzione,
is indeed a key for attention,
di disturbi dell'attenzione o ADHD.
cannot inhibit these distractors,
non può bloccare queste distrazioni
for a long time on a single task.
a lungo su un solo compito.
collegato al computer
brain-machine interfaces
and he lost complete ability to speak.
la capacità di parlare.
but there was no way to respond,
ma non c'era modo di rispondere
because he was illiterate.
perché era analfabeta.
potrebbe essere possibile.
schemi cerebrali
about images or even letters,
a immagini o perfino a lettere,
a different brainwave pattern
onde cerebrali diverse
communicate for people who can't speak?
per le persone che non possono farlo?
the thoughts of a person in a coma?
di una persona in coma?
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