THE BRAIN

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

The brain is separated right through the middle in two different hemispheres, right and left. Each of these hemispheres are specialized for some behaviors.

2. What are the major differences between the left and right sides of the brain?

The left brain is more school like and the left side is more creative and emotional.

3. What is the corpus collasum?

A thick band of 200-250 million nerve fibers that helps the hemispheres communicate with each other.

4. Explain the study performed by Paul Broca in which he discovered "Broca's Area."

Paul Broca studied the brain of a speech impaired person after his death.

5. Explain the study conducted by Roger Sperry in regard to "split brain."

Sperry made experiments to people who had surgery to cut the corpus callosum. These experiments proved that it isolated information from reaching one hemisphere. The right brain dominates when there is no speech and the left when there is speech.

6. Explain the study conducted by Karl Wernicke which led to the discovery of Wernicke's Area."
Karl Wernicke studied people with aphasia that couldn’t comprehend language. He then saw that they had cerebral injuries in the Wernicke’s Area and because of this they had the language comprehension problem.

7. Which lobe is most responsible for vision?

The occipital lobe is the one in charge for visual perception.

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

The temporal lobe is responsible for hearing and language.

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

The parietal lobe is responsible for performing math calculations.

10. Which lobe is most responsible for judgment, reasoning and impulse control?

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



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