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The effect of trauma on the brain and how it affects behaviors | John Rigg | TEDxAugusta
آمار یادگیری
سطح CEFR
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زیرنویسها (587 بخشها)
I want to ask you to think back to some
occasion in your life when you might
have gotten in an argument with someone
particularly someone that you loved you
cared for a lot a family member a spouse
a parent and really reacted really react
it got so angry did things you said
things maybe broke stuff said hurtful
things and then later on reflected on
your behavior and wondering what
happened where did that come from I want
to look at some of the factors that
contribute to that type of overreaction
that mechanism that hyper arousal that
occurs hyper arousal anger hostility
where does that come from what generates
it I'm going to talk about stress okay
stress as if as a factor that can
influence behaviors and look at the
anatomy of the human brain is actually
we actually have two brains that are
contributing to our behaviors two brains
contributing to our behaviors and stress
is particularly influential on one of
them stresses noting that we think about
right we don't come up with stress it is
a reaction to the external environment
so let me talk about the two brains I
have a diagram here of this the cortex
of the brain and this structure
underneath the cortex of the brain which
is labeled brain stem in here but I'm
really talking to talk about the
subcortical brain this entire structure
here the cortex of the brain is what I'm
going to call the human brain the
intelligent brain it's where our
personality is our individuality where
we make choices of our mate what we eat
we're kind of music we listen to what
car we drive where we live what type of
life we live we take in sensory
information that's processed in the
cortex and we
take actions based on sensory
information that's where our personality
our individuality it's all centered in
that cortical area note in the human
brain it's actually the the by far the
largest mass of the human brain is
cortex okay we rule the world as humans
why not because we perform animal
functions better than any animals we're
not bigger faster stronger than animals
we think better we have the largest
cortex and we rule the world but we're
animals we eat make waste products and
make babies and that behavior triggered
by our primitive animal brain is
sometimes responsible for triggering
some of the behaviors that were not
particularly fond of so this primitive
animal brain what does it do well the
brain reacts to situations whether we
want it to or not particularly this
animal brain which doesn't think it just
reacts to the environment so if I if I
said to you hey let's all go outside and
race across Broad Street but don't your
heart beat increase could you do it now
you can think to yourself hey I'm going
to stop my heart beat for 10 seconds but
you can't do it the thought exists the
thinking exists in the cortex the human
brain but the animal brain is
controlling your heartbeat and won't let
you do it so you can think all you want
about lowering your blood pressure and
it won't happen that primitive animal
brain is maintaining your heartbeat your
breathing your digestion from the moment
that you're born at any time I mean even
pre pre birth you know as a fetus that
no these structures start operating in
that central nervous system primitive
animal brain is operating non-stop until
it until your death pretty amazing
okay I'm gonna ask you to look at
another way that that this primitive
animal brain reacts the situations okay
so this you know let's let's pick a
picture a bunch of guys hanging out
arguing about who's gonna win the Super
Bowl on Sunday talking about cars
whatever whatever men might want to talk
about when they're involved in a
conversation I'm a man so I look at you
know I only have a male perspective on
things but what you guys are sitting
around talking and all of a sudden there
that conversation this really attractive
looking woman walks by with a
inappropriately short miniskirt and an
inappropriately tight t-shirt what's
gonna happen to that conversation all
right the little Snickers in yon is no
not me man I don't look you know men
will be attracted to that not because
they're out there searching for mates
married men might react that way okay
but because of the fact there's an
animal incident of sexual attraction
why do advertisers put sexually
attractive women in ads to attract
attention to that ads so people go on
buy stuff they don't need okay it's an
animal instinct now I may be distracted
at times but I'm married so I don't go
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