EQ: What is split brain?

One Brain or Two?

BR: Read and annotate pg.81 and add to the diagram at the bottom

• Do you think you are more right or left brained? Why?

• Draw a circle with your right hand and a square with your left hand

http://www.youtube.com/watch?v=lfGwsAdS9Dc

1. What did the doctors do to stop the patient’s seizures?

2. What is this effect of this procedure?

3. Explain what is happening with this patient’s ability to recognize words and objects?

Who can explain this?

• Left hemi=language

• Right side is shown word “ring” so he says ring

• Right side is spatial and patterns

• Left side is shown key so her picks up a key

D

DD

D

D

D

D

D

D

D D D D

D

D

DD

D

D

DD

DD

1.What is the large composite letter?

H (which side of brain?

2. What is the small component letter?

D (which side of brain?)

D

DD

D

D

D

D

D

D

D D D D

D

D

DD

D

D

DD

DD

1.What is the large composite letter?

H (right side: big picture)

2. What is the small component letter?

D (left side-more detail)

Which face looks happier to you?

• Answer: Right face

• Right hemisphere skilled in face recognition and emotion processing receives info from left side of each face

FORK SPOON

• When asked to SAY what they saw, they answer __________________

• When asked to pick up what they saw with their left hand, they will pick up a ______.

FORK SPOON

• When asked to SAY what they saw, they answer __________________– (spoon)

• When asked to pick up what they saw with their left hand, they will pick up a ______.– (fork)

Dr. J briefly flashed a picture of a key in the right visual field of a split-brain patient. The patient could probably

A. verbally report that a key was seen

B. write the word “key” using her left hand

C. draw a picture of a key using the left hand

D. none of the above

Dr. J briefly flashed a picture of a key in the right visual field of a split-brain patient. The patient could probably

A. verbally report that a key was seen

B. write the word “key” using her left hand

C. draw a picture of a key using the left hand

D. none of the above

Answer: A

A split brain patient has a picture of a knife flashed to her left hemisphere and that of a fork to her right hemisphere. She will be able to

A. identify the fork using her left hand.

B. identify the knife using her left hand.

C. identify the knife using either hand.

D. identify the fork using either hand.

A split brain patient has a picture of a knife flashed to her left hemisphere and that of a fork to her right hemisphere. She will be able to

A. identify the fork using her left hand.

B. identify the knife using her left hand.

C. identify the knife using either hand.

D. identify the fork using either hand.

Answer: A

• What will happen if a split brain patient is flashed a picture of a face that is made up of fruit to the left hemisphere?

A. They will see a face made up of fruit

B. They will see a face

C. They will see fruit

D. They will not see anything

• What will happen if a split brain patient is flashed a picture of a face that is made up of fruit to the left hemisphere?

A. They will see a face made up of fruit

B. They will see a face

C. They will see fruit

D. They will not see anything

Answer: c

• People should typically recognize familiar words more rapidly when spoken into their __________ ear.

• People should typically recognize familiar melodies more rapidly when played into their ________ ear.

Note: Not all people have such simple separations between hemispheres. Women (more than men) tend to use both sides of their brain when interpreting language.

• People should typically recognize familiar words more rapidly when spoken into their __________ ear.Answer: right

• People should typically recognize familiar melodies more rapidly when played into their ________ ear.Answer: left

Note: Not all people have such simple separations between hemispheres. Women (more than men) tend to use both sides of their brain when interpreting language.

Bell Ringer

If a split brain patient is shown this picture to their right hemisphere what will they see?

What will they see if flashed to their left field of vision?

• Face is answer to both

A split brain patient has a picture of a knife flashed to her right hemisphere and that of a fork to her left hemisphere. She will be able to

A. identify the fork using her left hand.

B. identify the knife using her left hand.

C. identify the knife using either hand.

D. identify the fork using either hand.

• identify the knife using her left hand.

• A split brain patient is flashed the word bell to the left field of vision and flute to the right field of vision which would happen?

• A. They would say bell and draw music

• B. They would draw and flute and bell

• C. They would say flute and bell

• D. They would say flute and draw bell

• D. They would say flute and draw bell