Now, let’s take a look at damage,
because then in our world of psychology
and neuroscience, anytime you want
to try to understand function,
damage is a great way to
understand what happens if you
remove the ability of that brain
structure to work correctly.
So, one area that we’re going to look at is Broca’s area.
So it’s located in the left
hemisphere of the frontal lobe.
It’s indicated here
as you can see.
And it’s involved in the complicated
process of speech production.
So, actually, expressing what you want
to say and put in the words together.
So, you can have injury or a
disorder called “Broca’s aphasia”
where you actually lose
the ability to speak.
So, you know, what you want to say
but you’re unable to communicate it.
And it’ll come out as
grunts or, you know, weird
phonetic sounds but they don’t
actually mean anything.
So, you’ll see this in times where
there’s stroke or trauma to the brain.
They’ve damaged Broca’s
area and, you know,
the poor patient is quite
they’re trying to say something and all
comes across is kind of grunts and moans.
Now, another area that’s of
interest is Wernicke’s area.
This is located in the
posterior section of
the temporal lobe in the
So, we all have one
And for most, it’s actually
the left hemisphere.
So in that area, the
Wernicke’s area found there,
if it’s involved in some kind of
damage, you see some deficiency.
So normally, this area
is involved in the
comprehension of speech
and written language.
So, understanding what
you’re saying and being able
to write, a lot of times,
what you’re thinking.
So, Wernicke’s aphasia or also
known as receptive aphasia is
loss of the ability to produce
intelligible, meaningful speech.
Now you can actually say words,
but the content of what you’re
saying doesn’t make any sense.
You’ll say words that kind
of don’t go together.
You’ll be like, “Tomorrow, tomato,
car, urination, underwear.”
And you’re kind of like, “Well, none
of those kind of makes any sense.”
Again, they have the
ability to speak,
but what they’re saying,
the content, is lacking.
So, we’ve kind of walk through the
different ways that we acquire language.
We’ve looked at how that set up.
We looked at cultural differences and
then we tied it all together by looking
at the parts of the brain that actually
help manage language and speech.