SpeakUp
Bugun
Speaking
Shadowing
Lug'at
Slang
Grammatika
How memories form and how we lose them
TED-Ed · psychology
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Think
back
to
a
really
vivid
memory.
Yozib olish va solishtirish
Got
it?
Okay,
now
try
to
remember
what
you
had
for
lunch
three
weeks
ago.
That
second
memory
probably
isn't
as
strong,
but
why
not?
Why
do
we
remember
some
things,
and
not
others?
And
why
do
memories
eventually
fade?
Let's
look
at
how
memories
form
in
the
first
place.
When
you
experience
something,
like
dialing
a
phone
number,
the
experience
is
converted
into
a
pulse
of
electrical
energy
that
zips
along
a
network
of
neurons.
Information
first
lands
in
short
term
memory,
where
it's
available
from
anywhere
from
a
few
seconds
to
a
couple
of
minutes.
It's
then
transferred
to
long-term
memory
through
areas
such
as
the
hippocampus,
and
finally
to
several
storage
regions
across
the
brain.
Neurons
throughout
the
brain
communicate
at
dedicated
sites
called
synapses
using
specialized
neurotransmitters.
If
two
neurons
communicate
repeatedly,
a
remarkable
thing
happens:
the
efficiency
of
communication
between
them
increases.
This
process,
called
long
term
potentiation,
is
considered
to
be
a
mechanism
by
which
memories
are
stored
long-term,
but
how
do
some
memories
get
lost?
Bugun
Speaking
Shadowing
Lug'at
Slang
Grammatika