chapter 4

Question 1

what are some naturally-occurring asymmetries between the right and left hemispheres

Answer 1

• left hemisphere is shifted posterior

- right hemisphere shifted anterior

Question 2

Broca’s Aphasia

Answer 2

• slow halting speech
• problems in speech production
• short not full sentences

-but understands what is being said to them or what they want to say

Question 3

Wernicke’s Aphasia

Answer 3

• fluent nonsensical speech
• problems in speech comprehension
• difficulty in producing comprehendible language

-patients don’t have a strong awareness that they are not producing effectively

Question 4

split brain patients …what does their testing reveal

Answer 4

• Patients that have had a callosotomy (serving of corpus callosum) as a last resort to treat seizure disorders
• The hemispheres of their brains are now disconnected
• Upon testing, they show interesting behavioral differences between right and left hemisphere functions

Question 5

describe the relationship between handedness and language lateralization

Answer 5

• righthanders have speech on left

- lefthandershave speech on right

Question 6

3 functions commonly attributed the right hemisphere

Answer 6

• musical ability
• memory for shapes
• left hand motor control
• intuitive, nonverbal thought

Question 7

what does Broca’s and Wernicke’s Aphasia tell us about lateralization in the brain

Answer 7

-that the left hemisphere has the ability to understand and comprehend but lacks the ability to verbalize it

Question 8

what is thee evolutionary advantage of hemispheric specialization

Answer 8

• humans can multitask and have the ability to do more tasks at once
• increases survival

Question 9

what do split brain patients show us about consciousness ? about lateralization

Answer 9

• consciousness: is complicated, there might be a difference btw verbal consciousness and nonverbal consciousness, different types of consciousness
• lateralization: shows us the differences btw the left and right hemisphere, show us that connections btw our brains can messes up

Question 10

are the analogous parts of the right and left hemisphere doing the same thing?

Answer 10

-yes, can study this by comparing left hemisphere strokes to right hemisphere strokes

Question 11

are creative people right-brained and analytical people left-brained ?

Answer 11

right-brained/left-brained is not a thing