trujijm0626-The_Occipital_Lobe

paraderollAI and Robotics

Nov 17, 2013 (3 years and 11 months ago)

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The Occipital Lobe is the rearmost lobe in each cerebral
hemisphere of the brain. It contains the visual center of the
brain.


-

It is one of the main lobes/regions of the cerebral cortex

-
Main visual processing (color and face recognition)

-

Occipital Cortex
-
(anatomy) a somewhat rounded
subdivision of a bodily organ or
part.


The occipital lobe is located at the back
of our brain. It is responsible for
receiving and processing visual
information from our eyes.

They are not particularly vulnerable to injury
because of their location at the back of the
brain, although any significant trauma to the
brain could produce subtle changes to our
visual
-
perceptual system, such as visual field
defects and scotomas.

The majority of epileptic seizures are controlled by medication, particularly
anticonvulsant
drugs(pain killers). The type of treatment depends on the person’s
frequency of seizures, a persons age and weight, overall health, and medical history.

Drugs Used to treat Epilepsy
-

Dilantin or Phenytek

Phenobarbital

Tegretol or Carbatrol

Mysoline

Zarontin

Depakene

Depakote, Depakote ER

Valium and similar tranquilizers, such as Tranxene and Klonopin

Newer drugs to treat epilepsy include:

Felbatol

Gabitril

Keppra

Lamictal

Lyrica

Neurontin

Topamax

Trileptal

Zonegran


Does Lincoln’s face look normal?


Does Lincoln’s face look normal?

It
seems

nor
mal but now, look at it upright: Lincoln’s eyes do not look quite

right!


It
seems

nor
mal but now, look at it
upright: Lincoln’s eyes do not look
quite

right!

Some neu
rons in the brain seem spe
cial
ized in pro
cess
ing faces.
Faces are usu
ally seen upright. When pre
sented upside down, the
brain no longer rec
og
nizes a pic
ture of a face as a face but rather as
an object. Neu
rons pro
cess
ing objects are dif
fer
ent from those pro
-
cess
ing faces and not as spe
cial
ized. As a con
se
quence these neu
rons
do not respond to face dis
tor
tions as well. This explains why we miss
the weird eyes when the face is inverted.

Can you see a

baby?

Another great exam
ple of an
illu
sory con
tour! The baby’s
head is on the left, the baby’s
feet are against the trunk of the
tree on the

right.

Stare at the yel
low stripe in the mid
dle of the
fish in the pic
ture below for about 10

20 sec.
Then move your gaze to the fish

bowl.

Can you put the fish in the fishbowl?

Did you see a fish of a dif
fer
ent color in
the bowl? You have just expe
ri
enced an
after
im
age
.

In the retina of your eyes, there are three
types of color recep
tors (cones) that are
most sen
si
tive to either red, blue or
green. When you stare at a par
tic
u
lar
color for too long, these recep
tors get
“fatigued.” When you then look at a dif
fer
-
ent back
ground, the recep
tors that are
tired do not work as well. There
fore, the
infor
ma
tion from all of the dif
fer
ent color
recep
tors is not in bal
ance. This will cre
ate
the color “afterimages.”

Quiz

1.
What does the occipital lobe control
and where is it located?


2.
What part of the body does it
operate?