Ngày tải lên :
29/04/2014, 15:23
...
"'"
Monoamines
Monoomincs
are
dil'ided
infO
twO
classes:
cmecholamines
and
indole-
amilWS.
The catocholalllltles
include
the ncurotr,lllsminers
epinephrine,
norepinephrint,
and
dopamine,
and
the
indolemnines
include
serotOllin
llnd
me/monin.
Epinephrine
is
another
name
for
adrenaline. ... arpears
wrinkled.
ACTU-
ally,
almost
two-thirds
o(
it
lies
within
the
folds.
It
is
this
cortex
thal
is
rderred
ro
as
our
"gral'
maltCr,~
e\'en
Though
it
is
actually
pinkish
bro\\ll.
TIle
relit
o(
thc
cerebrum
beneath
the
cortex
is
';white
matter"
and
con-
sistS
of
;1xons,
many
of
which
have
been
myelinaTed,
causing
the
white
colot.
The
Information
Trail
Now
T
hm
wc
'vc
examined
t
hesc
major
parTS
of
t
he
hra
in,
lel's
follow
some
informatlon
through
the
brain.
We
take
information
into
our
brams
throllgh
our
fivc
senses.
That
informiltion
is
first
filtered
through
the
re-
ticular
activating
system
in
the
brain
stem.
Then
it
goes
to
the
thalamus,
the
brain
STnJcture
th:n
sons
the
informmion.
By
sorting,
I
mean
Thm
if
the
information
is
visual,
the
thalamus
scnd~
it
to
the
visual
pMt
of
the
cortex;
if
iT
is
auditory,
it
sends
it
to
fhe
Auditory
COrtcx,
:md
so
on,
When
informat
lOll
teaches
Ihe
cerebml
cortex,
this
higher
area
dl'(ides
whether
it
should
be
acted
upon
or
stored
in
long-Term
memory.
[fit
is
to
be
stored
(or
the
long
term,
the
information
is
rclaYl'(l
(rom
the
COrtcx
TO
Ihe
hippo-
CAmpus,
\\·hich
c:nalogs
and
files
it.
If
the
infonnarion
has
emOTional
con-
tcnl,
it
is
sent
to
the
amY(:rlata
for
a
similar
procedure.
This
is
how
our
memories
brrow,
This
is
how
we
explore
our
world,
make
sen)C
of
it,
antI
grow
those
dcndrites.
SomeTimes,
how';:\lcr,
it
does
not
hilpp<:n
exactly
this
wal·.
The
Stress
Response
You
are
at
home
With
your
best
fr~nd.
She
has
convinced
you
10
(ent
a
video
of
thelatesl
murder
mystery,
Usually
you
do
not
wald'l
mysteries
because
... Message
When
the
cOfrect
neurons
fire,
a
message
IS
sent.
Neurolransmltters
How
from
the
aXQl1
termmal
of
the
sending
neuron
to
the
receptor
sites
on
the
dendnte
01
the
receIVIng
neuron,
0
••
000
••
000
••
0
.00.0.00.0.00
•
•
0000.00.0.000
0
••
00.00.00
••
0
000.0.00.0000
•
•
00.0.00.0.00.
0
••
000
••
000
••
0
o.khn
Soup
for
lhe
Bmin:
Thr
F.ff«u
nf
Br."n
Chrmocals
2\
message.
It
is
~ctually
made
from
glutamille
with
one
ext!":l
enzyme.
GABA
exists
in the
areas
of
the brain dealing with emotions and think-
ing.
Glutamare
and
GABA
appear
in
most
information-processing
transmissions
as
onc
activa1es
cenain neurons and the other quiets
those
th:u
arc
n01
needed
for
the
message.
Figure
ZA.
Classes
of
Ncurotmllsmittcrs
I
EpiI1."mne
I...