BRAIN & ITS FUNCTIONS

1. What does the word "hemisphere" refer to when talking about the brain?

“Hemi” means half. Our brain is spilt in half. It has the left side and the right side of the brain. Each side has its different functions.  The two sides are connected by the corpus collasum.
2. What are the major differences between the left and right sides of the brain?

No one is only left brained or only right brained. However, one side dominates. If you are dominated by your right side, you tend to be more creative. You aren’t always organized.  You like to see things visually. On the other hand, if someone is left brained, then they tend to look at the logic behind things. They think things out before doing them. Left brained people tend to look at parts, rather than the whole.
3. What is the corpus collasum?

The corpus collasum is the nerve fibers that connect the left side of your brain to your right side.
4. Explain the study performed by Paul Broca in which he discovered "Broca's Area."

Broca’s area is on the surface of the left frontal lobe. When someone has damage there,  they lose the ability to forms words and sentences. Paul Broca had two patients who had this, Lalong and Leborgne. They both could form few words. Broca determined that it was because they had damage in the surface of the left frontal lobe.
5. Explain the study conducted by Roger Sperry in regard to "split brain."

“Split brain” refers to when, in surgery, someone’s corpus collasum is cut. This is usually done if someone has a really bad case of epilepsy. In doing this, the right and left side of the brain cannot process as one. There are advantages and disadvantages. This is a last resort. Most patients had the same memory as before. They could pay attention when spoken to, Also, they had good control of themselves.
6. Explain the study conducted by Karl Wernicke which led to the discovery of Wernicke's Area."

Wenicke’s area is in the posterior section of the superior temporal gyrus in the dominant cerebral hemisphere (which is the left hemisphere in about 90% of people). He believes that this part of the brain, if damages, caused aphasia. Aphasia is  a difficulty comprehending or producing spoken or written language.
7. Which lobe is most responsible for vision?

The occipital lobe is most responsible for vision.

8. Which lobe is most responsible for hearing and language?

The temporal lobe is most responsible for hearing and language.

9. Which lobe is most responsible for performing math calculations?

The frontal lobe is most responsible for performing math calculations.
10. Which lobe is most responsible for judgment, reasoning and impulse control?

The frontal lobe is most responsible for judgment, reasoning, and impulse control.