Thursday, May 5, 2011

chapter 15


1.

CorrectIn which kind of seizure is consciousness not lost?

Your Answer:

simple partial seizure
Correct!

2.

CorrectChildren with Tay-Sachs disease

Your Answer:

are missing a vital enzyme, so their lysosomes cannot remove certain waste products.
Correct!

3.

CorrectThe tonic phase of a grand mal seizure begins when

Your Answer:

motor cortex neurons fire continuously.
Correct!

4.

CorrectThe same abnormal microscopic structures develop in the brains of patients with Down's syndrome and

Your Answer:

Alzheimer's disease.
Correct!

5.

IncorrectAIDS dementia appears to be caused by

Your Answer:

the death of axons and dendrites.

Correct Answer:

entry of excessive amounts of calcium into neurons.
Incorrect. Try Again.

6.

IncorrectThe dense core of Lewy bodies found in the brains of people with ______ contain ________.

Your Answer:

Alzheimer's disease; beta-amyloid

Correct Answer:

Parkinson's disease; aggregations of misfolded alpha-synuclein
Incorrect. Try Again.

7.

IncorrectWhen normal prion protein began to be destroyed at 12 weeks of age in genetically modified mice,

Your Answer:

cells in the brain compensated by increasing production of normal prion protein.

Correct Answer:

the brain degeneration ceased.
Incorrect. Try Again.

8.

IncorrectIf untreated, inherited metabolic disorders such as pyriodoxine dependency and galactosemia damage

Your Answer:

the meninges.

Correct Answer:

cerebral white matter.
Incorrect. Try Again.

9.

IncorrectThe difference between normal prion protein and infectious prion is

Your Answer:

normal prion protein is essential for life.

Correct Answer:

the way the protein is folded.
Incorrect. Try Again.

10.

IncorrectMutations of the presenilin gene _____ of the long form of beta-amyloid.

Your Answer:

interfere with the production

Correct Answer:

cause the production
Incorrect. Try Again.

11.

IncorrectDown syndrome

Your Answer:

is an hereditary disorder.

Correct Answer:

results from an extra 21 chromosome.
Incorrect. Try Again.

12.

CorrectA mass of cells whose growth is uncontrolled and which serves no useful function is a(n)

Your Answer:

tumor.
Correct!

13.

IncorrectTreatment for phenylketonuria (PKU) consists of early diagnosis and

Your Answer:

life-long supplemental phenylalanine.

Correct Answer:

a diet low in phenylalanine.
Incorrect. Try Again.

14.

IncorrectBenign tumors

Your Answer:

do not cause brain damage.

Correct Answer:

have a distinct border.
Incorrect. Try Again.

15.

IncorrectSecretases are

Your Answer:

filaments of tau protein.

Correct Answer:

enzymes that cut the beta-amyloid precursor molecule in pieces.
Incorrect. Try Again.

16.

IncorrectThe most common cause of encephalitis is a virus

Your Answer:

found in bird droppings.

Correct Answer:

transmitted by mosquitoes.
Incorrect. Try Again.

17.

CorrectFetal alcohol syndrome results

Your Answer:

from as little as a single drinking binge.
Correct!

18.

IncorrectMultiple sclerosis is more likely to strike

Your Answer:

people born in later summer and fall.

Correct Answer:

people whose childhood was spent far from the equator.
Incorrect. Try Again.

19.

IncorrectThe immediate cause of neuron death following a stroke is the presence of

Your Answer:

unabsorbed calcium.

Correct Answer:

excessive amounts of glutamate.
Incorrect. Try Again.

20.

IncorrectCaspase is a(n) _______ that plays a role in _______.

Your Answer:

virus; transmissible spongiform encephalopathy

Correct Answer:

enzyme; apoptosis.
Incorrect. Try Again.

21.

IncorrectMutation of the parkin gene permits the formation of toxic levels of

Your Answer:

presenilin.

Correct Answer:

alpha-synuclein.
Incorrect. Try Again.

22.

CorrectHemorrhagic strokes cause brain damage by

Your Answer:

exerting pressure on surrounding tissue.
Correct!

23.

IncorrectFetal tissue transplants into the brains of Parkinson patients are an attempt to

Your Answer:

increase the sensitivity of remaining dopamine receptors.

Correct Answer:

reestablish the secretion of dopamine in the neostriatum.
Incorrect. Try Again.

24.

IncorrectRabies vaccine is only effective if

Your Answer:

injected through the abdominal wall.

Correct Answer:

administered during the incubation period.
Incorrect. Try Again.

25.

CorrectMalignant tumors are deadly because these tumors

Your Answer:

All of the above are correct.

26.

CorrectBrain seizures that result in convulsion must involve the

Your Answer:

motor system.

27.

CorrectThe most common form of seizure disorder noted in children is

Your Answer:

a spell of absence.

28.

IncorrectAn alcoholic who abruptly stops drinking may experience a seizure because

Your Answer:

of a sudden release from the excitatory effects of the drug.

Correct Answer:

this abrupt withdrawal results in overly activated NMDA receptors.

29.

IncorrectObstructive strokes are caused by

Your Answer:

malformed blood vessels.

Correct Answer:

thrombi or emboli that block blood vessels in the brain.

30.

Incorrect______ represent(s) a therapy for stroke that does not cause excitotoxic injury when infused into brain.

Your Answer:

Drugs that activate NMDA receptors

Correct Answer:

The anticoagulant desmoteplase

31.

Incorrect______ is a key risk factor for stroke.

Your Answer:

Cigarette smoking

Correct Answer:

All of the above are correct.

32.

IncorrectA key primary symptom or sign of fetal alcohol syndrome is

Your Answer:

the presence of stuttering.

Correct Answer:

abnormal facial development.

33.

IncorrectWhich of the following is true of Tay-Sachs disease?

Your Answer:

The symptoms of Tay-Sachs disease begin to show at four months of age.

Correct Answer:

All of the above are correct.

34.

CorrectThe cause of Down syndrome involves

Your Answer:

abnormal cell division of an egg from the mother.

35.

CorrectThe disease known as ______ is associated with the consumption of tainted human flesh.

Your Answer:

kuru

36.

CorrectThe cause of Parkinson's disease has been traced to

Your Answer:

degeneration of dopamine neurons within the nigrostriatal system.

37.

IncorrectThe appearance of Parkinson's disease in a person who has NO family history of that disorder would be classified as a ______ case.

Your Answer:

congenital

Correct Answer:

sporadic

38.

IncorrectThe primary cognitive deficit associated with Alzheimer's disease involves

Your Answer:

development of swelling of the meninges of the brain.

Correct Answer:

a type of anterograde amnesia similar to that of Korsakoff's syndrome.

Monday, April 11, 2011

chapter 11 emotion


1.

Correct An emotional response consists of three components:

Your Answer:

behavioral, autonomic, and hormonal.
Correct!

2.

Incorrect Select the incorrect statement about aggression and testosterone levels in men.

Your Answer:

Correlation does not prove causation.

Correct Answer:

Testosterone levels are genetically determined, and are not modified by environmental factors.
Incorrect. Try Again.

3.

Incorrect Which brain region may be involved in the muscular movements that produce laughter?

Your Answer:

right ventromedial prefrontal cortex

Correct Answer:

anterior cingulated cortex
Incorrect. Try Again.

4.

Correct Research indicates neural changes leading to a conditioned emotional response take place in the ____ and that inhibition of the conditioned response takes place in the _______.

Your Answer:

lateral nucleus of the amygdale; medial prefrontal cortex
Correct!

5.

Correct Accurate identification of the facial expressions of Westerners by members of an isolated New Guinea tribe tends to confirm Darwin's hypothesis that emotional expressions

Your Answer:

are innate, unlearned responses.
Correct!

6.

Correct The case of S.P., a woman with bilateral amygdale damage, suggests that the amygdala

Your Answer:

is not involved in the recognition of facial expression of emotion.
Correct!

7.

Incorrect According to the James-Lange theory, emotional feelings

Your Answer:

are a product of both sensory feedback and acquired social behavior.

Correct Answer:

result from sensory feedback from the responses a person makes in emotion-producing situations.
Incorrect. Try Again.

8.

Incorrect Alcohol increases intermale aggression among

Your Answer:

all male squirrel monkeys.

Correct Answer:

dominant male squirrel monkeys but only during the mating season.
Incorrect. Try Again.

9.

Incorrect Antidepressant drugs that act as serotonin _______ irritability and aggressiveness.

Your Answer:

antagonists increase

Correct Answer:

agonists decrease
Incorrect. Try Again.

10.

Correct The James-Lange theory is difficult to verify experimentally because

Your Answer:

it attempts to explain private events.
Correct!

11.

Correct In monkeys, where are the neurons involved in recognition of the direction of another monkey's gaze found?

Your Answer:

superior temporal sulcus
Correct!

12.

Correct The ______ receives information from the _____ system permitting it to recognize the facial expression of ______.

Your Answer:

amygdale; magnocellular; fear
Correct!

13.

Correct A person with _____ cannot make an emotional expression when asked to do so, but can express a genuine emotion.

Your Answer:

volitional facial paresis
Correct!

14.

Correct What may be the function of the prefrontal cortex?

Your Answer:

to transmit information on emotional states and the consequences of actions to other brain regions
Correct!

15.

Incorrect Cutting the vomeronasal nerve in male mice ______ intermale aggression.

Your Answer:

decreases

Correct Answer:

abolishes
Incorrect. Try Again.

16.

Correct Females of some primate species are more likely to engage in fights

Your Answer:

around the time of ovulation and just before menstruation.
Correct!

17.

Correct Research results using the chimerical faces technique suggest that the ______ half of the ______ is _______ expressive.

Your Answer:

left; face; more
Correct!

18.

Incorrect The results of research on patients with spinal cord injuries suggests that the intensity of their emotional states is related to the

Your Answer:

length of time following injury.

Correct Answer:

location of injury to the spinal cord.
Incorrect. Try Again.

19.

Correct People who have sustained damage to the ventral prefrontal cortex

Your Answer:

respond appropriately to hypothetical social situations, but not when these situations apply to them.
Correct!

20.

Correct The mirror-neuron system may be involved in our ability

Your Answer:

to empathize with the emotions of other people.
Correct!

21.

Incorrect The ______ hemisphere plays a more important role in comprehension of emotion from ______.

Your Answer:

right; word meaning

Correct Answer:

right; facial expression
Incorrect. Try Again.

22.

Correct In a free-ranging colony, monkeys with the lowest levels of metabolite of serotonin

Your Answer:

showed increased risk-taking behavior.
Correct!

23.

Correct Subjects with ventromedial prefrontal lesions continued to draw cards from a "bad" deck because their lesions may have

Your Answer:

prevented emotional warnings from changing their playing strategy.
Correct!

24.

Incorrect Classical conditioning occurs when a neutral stimulus is regularly ________ by a stimulus that _______ evokes a response.

Your Answer:

preceded; consistently

Correct Answer:

followed; automatically
Incorrect. Try Again.

25.

Correct An example of a behavioral component of an emotion would be

Your Answer:

a military guard who cocks his weapon and yells "halt!" as a car approaches his station.

26.

Correct The _______ is most important for the expression of emotional responses provoked by aversive stimuli.

Your Answer:

central nucleus of the amygdala

27.

Correct The _______ plays an important role in the freezing (behavioral arrest) response noted during fear.

Your Answer:

periaqueductal gray

28.

Incorrect In experiments by LeDoux on classically conditioned emotional responses, the unconditional emotional response is elicited by

Your Answer:

a 800-Hz tone.

Correct Answer:

brief electric food shock.

29.

Correct PET imaging studies suggest that recall of _____ is related to ______.

Your Answer:

emotionally charged memories; activation of the right amygdala

30.

Correct Match up the aggressive behavior below with the stimulus or situation that elicits that type.

Your Answer:

threat behaviors; defending the nest

31.

Correct Phineas Gage exhibited capricious, emotional behavior (in part) following accidental damage to his

Your Answer:

orbitofrontal cortex.

32.

Incorrect Which of the following research outcomes support the notion that serotonin activity is related to emotion?

Your Answer:

People who carry at least one short allele of the serotonin transporter are less likely to develop emotional problems such as depression.

Correct Answer:

People who carry at least one short allele of the serotonin transporter are more likely to develop emotional problems such as anxiety disorder.

33.

Correct In adult male rodents, castration reduces aggressiveness and injections of testosterone reinstate aggression. These effects represent a(n)

Your Answer:

activational effect.

34.

Correct Aggression between female rodents is facilitated by administration of

Your Answer:

testosterone.

35.

Correct Which of the following is true of the facial expression of emotion?

Your Answer:

Facial expressions of emotion are the same in blind children as in sighted children.

36.

Incorrect PET studies indicate that the comprehension of emotion from tone of voice increased the activity of the

Your Answer:

left hemisphere.

Correct Answer:

right frontal cortex.

37.

Correct People with volitional facial paresis are unable to

Your Answer:

voluntarily move their facial muscles.

38.

Correct Which statement best illustrates the James-Lange theory of emotion?

Your Answer:

A fit of laughter leads to increased happiness.

39.

Correct The results of research by Hohmann (1966) on patients with spinal cord injuries suggest that the intensity of their emotional states is related to

Your Answer:

the level of injury to the spinal cord.