Corpus Callosum
By Ericka Marshall & Kassie Moore
Latin for “Tough Body”
Location of Corpus Callosum?

Underneath the cerebrum at the
center of the brain.
Example to remember the Corpus
Callosum!
What is the Corpus Callosum made
up of?

Largest connective pathway

200 million nerve fibers

Connects left & right hemisphere

“Communication”
Communication!
Connects between left and right
hemisphere!
Story of Kim Peeks life through his eyes!
Function of the brain?




Communication between the Brain
Hemisphere
Eye Movement
Maintaining the Balance of Arousal and
Attention
Tactile Localization
Eye movement?


Right Eye
connected to Left
Hemisphere
Left Eye connected
to the Right
Hemisphere
Maintaining the Balance of Arousal
and Attention?


Attention

Alert

Aroused

Aware of your surroundings
Example of Arousal and Attention
in the Corpus Callosum
Tactile Localization?

Hand-eye
coordination
Types of Behaviors that the corpus
Callosum controls?

Children with
autism have a
smaller corpus
callosum.
How does this part of the brain
work?

Transfers the following:

Motor information

Sensory information

Cognitive information

“ALL THROUGH LEFT & RIGHT
HEMISPERES!”
Connected to other parts of the
brain?
 In the middle of
the fowllowing:

Left Hemisphere

Right Hemisphere

Acts as a strong
bond
Received, Processed, & Sent out?


Receive: information from
both the left and right
hemisphere
Processed: Left
hemisphere= Right
hemisphere
Right hemisphere = Left
hemisphere

Sent out: Body is sent
information on what both
the hemispheres want them
to do.
Discovery of the Corpus Callosum?

In 1961, a 41-year-old policeman complained about
the following:

Headaches

Nausea

Vomiting


Forgetful
Confused
Early Research?

Corpus Callosum
bigger in women
or men?
If the Corpus Callosum was injured?




Little, if any communication between the left and
right brains can occur with AgCC
What you see out of your left eye goes to the right
side of your brain and vice versa, but the speech
center is located on the same side as the eye
Causes: Prenatal infections or viruses, genetic
abnormalities, toxic metabolic conditions, blocking
of growth to the Corpus Callosum
Many people with the disorder are healthy, but some
have siezeres or need other medical attention
Symptoms

Disorder does not change

Symptoms:

Clumsiness

Oversensitivity to certain things
but high tolerance for pain

Challenges with social interactions

Limited insight to own behavior
Current Research?


Studying emotional responsiveness and
social cognitive in adults with “AgCC”
Does the brain adapt in different ways to
compensate for the missing Corpus
Callosum?
Work Cited
http://biology.about.com/od/anatomy/p/corpus-callosum.htm
http://cnsvp.stanford.edu/atlas/corpus_callosum.html
http://www.nodcc.org/index.php?option=com_content&task=view&id=12&Itemid
=27
http://hubel.med.harvard.edu/book/b34.htm