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Gets on my nerves because you
see hair cells in here that
have stereocilia that
are just waving around,
but the stereocilia
are really rigid.
But anyway, I thought it
would be interesting just
to see what someone sees
when they are getting
this stuff from a
cochlear implant.
Let's see if this
movie will play.
[VIDEO PLAYBACK]
In normal hearing,
the hair in the inner ear--
PROFESSOR: I hate this.
I mean the best
membranes way over here.
The hair cells--
-The hearing nerve still
remains functional,
but the hair cells have
been lost or damaged.
In a cochlear implant system,
sound enters a microphone
and travels to an
external mini computer
called a sound processor.
The sound is processed
and converted
into digital information.
This digital information is
sent over a transmitter antenna
to the surgically implanted
part of the system.
The implant will turn
the sound information
into electrical signals
that travel down
to an electrode array inserted
into the tiny inner ear.
The electrodes directly
stimulate the auditory nerve,
sending sound
information to the brain.
Bypassing the damaged inner
ear, the cochlear implant
provides an entirely new
mechanism for hearing.
[END VIDEO PLAYBACK]
PROFESSOR: So that's
what the patient's see.
And how well does it work?
So we can ask a demonstrator
that we have today.
Sheila come on up in
front of the class.
This is Sheila [? Zu ?],
who is a MIT undergraduate.
You're a senior now, right?
What's your major at MIT?
SHEILA: I'm the only