Question 1

According to the Wernicke-Geschwind model, during speech, the output of Wernicke's area is transmitted to

Accepted Answer

A)  the angular gyrus. 
B)  Broca's area. 
C)  primary motor cortex. 
D)  Heschl's gyrus. 
E)  the planum temporale.

Question 2

Electrical stimulation of the left cerebral cortex of conscious patients can influence their speech in a variety of ways. Which of the following is not a commonly observed speech-related response to cortical stimulation? The patient

Accepted Answer

A)  says an unintended phrase. 
B)  is momentarily mute. 
C)  can speak but finds it difficult to name common objects. 
D)  can speak but makes errors in counting. 
E)  mispronounces well-known words.

Question 3

One theory of why lateralization of function evolved is that there are two fundamentally different modes of thinking, each requiring different neural circuitry. These two modes of thinking are referred to as

Accepted Answer

A)  positive and negative. 
B)  scientific and nonscientific. 
C)  logical and illogical. 
D)  synthetic and analytic. 
E)  motor and sensory.

Question 4

The left planum temporale corresponds roughly to __________.

Accepted Answer

The answer of The left planum temporale corresponds roughly to...

Question 5

Label the seven components of the Wernicke-Geschwind model and briefly explain the hypothetical function of each.

Accepted Answer

The answer of Label the seven components of the Wernicke-Geschwind...

Question 6

According to the analytic-synthetic theory of cerebral asymmetry,

Accepted Answer

A)  the left hemisphere thinks in an analytic mode. 
B)  the left hemisphere operates in a logical computer-like fashion. 
C)  the right hemisphere is concerned with overall stimulus configuration and processes information in Gestalts or wholes. 
D)  the left hemisphere abstracts relevant details and attaches verbal labels to them. 
E)  all of the above

Question 7

In contrast to the predictions of the Wernicke-Geschwind model, CT and structural MRI studies have identified aphasic patients who appear to have damage restricted to

Accepted Answer

A)  the medial frontal lobes. 
B)  the basal ganglia. 
C)  subcortical white matter. 
D)  all of the above 
E)  both A and B

Question 8

A spoon is presented in the left visual field of a split-brain patient, and an apple is simultaneously presented in the right. Then, the patient is instructed to reach into two bags (one with each hand) and feel around until he comes up with the object that was presented on the screen. However, before the objects are withdrawn, the patient is asked to tell the experimenter what he has in each hand. The patient is likely to say, "I have

Accepted Answer

A)  an apple in each hand." 
B)  a spoon in each hand." 
C)  an apple in my left hand and a spoon in my right." 
D)  a spoon in my left hand and an apple in my right." 
E)  no idea."

Question 9

The cognitive neuroscience approach to the study of language is based to a large degree on the following method:

Accepted Answer

A)  fMRI. 
B)  PET. 
C)  structural CT. 
D)  both A and B 
E)  both B and C

Question 10

Roger __________ won a Nobel Prize for his studies of split-brain patients.

Accepted Answer

The answer of Roger __________ won a Nobel Prize for...

Question 11

The corpus callosum is the largest cerebral __________.

Accepted Answer

The answer of The corpus callosum is the largest cerebral...

Question 12

The first large-scale cortical electrical stimulation studies of conscious human patients were conducted by

Accepted Answer

A)  Lashley. 
B)  Penfield. 
C)  Hebb. 
D)  Kimura. 
E)  Milner.

Question 13

According to the Wernicke-Geschwind model, word salad results from damage to

Accepted Answer

A)  Wernicke's area in the right hemisphere. 
B)  the frontal operculum. 
C)  Wernicke's area. 
D)  the arcuate fasciculus. 
E)  Broca's area.

Question 14

A major advantage of the Z lens over conventional procedures for testing split-brain patients is that it

Accepted Answer

A)  does not restrict the experimenter to the use of simple visual stimuli presented for 0.1 seconds. 
B)  permits the testing of both hemispheres. 
C)  does not require an eye patch. 
D)  all of the above 
E)  both B and C

Question 15

The volunteers in the first experiments performed on split-brain humans had

Accepted Answer

A)  suffered from severe cases of epilepsy. 
B)  their corpus callosums severed. 
C)  their optic chiasms severed. 
D)  all of the above 
E)  both A and B

Question 16

The discovery of the lateralization of aphasia and apraxia led to the

Accepted Answer

A)  concept of a dominant left hemisphere. 
B)  concept of a dominant right hemisphere. 
C)  development of commissurotomy. 
D)  development of split-brain surgery. 
E)  both C and D

Question 17

A major difficulty in studying the asymmetry of the cortical language areas is

Accepted Answer

A)  their boundaries are unclear. 
B)  they differ greatly from person to person. 
C)  that it is unclear how anatomical asymmetries are related to functional asymmetries. 
D)  all of the above 
E)  both A and C

Question 18

Most people are dextrals, but some are __________.

Accepted Answer

The answer of Most people are dextrals, but some are...

Question 19

The largest commissure in the human brain is the

Accepted Answer

A)  optic chiasm. 
B)  anterior commissure. 
C)  massa intermedia. 
D)  majora commissura. 
E)  none of the above

Question 20

This cortical region, just anterior to the left primary motor cortex, is

Accepted Answer

A)  Broca's area. 
B)  the somatosensory cortex. 
C)  the frontal eye field. 
D)  the angular gyrus. 
E)  Wernicke's area.

Exam 16: Lateralization, Language, and the Split Brain