Anyone good at psycology? ! i need

question 1
the flight-or-fight response is mobilized by the nervous system.

a. central

b. somatic

c. sympathetic

d. parasympathetic

question 2
ali is in the hospital about to undergo a brain-imaging process that involves taking many x-rays from different angles. what type of imaging technique is being used?

a. electroencephalography (eeg)

b. magnetic resonance imaging (mri)

c. positron-emission tomography (pet)

d. computed tomography (ct)

question 3
which of the following statements is true?

a. many parts of the brain appear to have no useful function in today’s world.

b. losses of small areas of certain parts of the brain rarely cause devastating, often permanent, losses of function.

c. all the brain areas become active on brain scans at one time or another as we think, feel, and

d. every part of the brain has a redundant backup, which is why brain injuries are so rarely serious.

question 4
kayla and layla are twins who were separated at birth. a researcher interested in studying heredity tracks them down and speaks to their different families about the benefits that can be achieved by studying the two young girls. the girls and their different sets of parents agree to participate, and studies begin assessing various areas of the girls’ lives. in order for this type of twin study to be most effective, what kind of twins should kayla and layla be?

a. conjoined

b. monozygotic

c. amorphous

d. dizygotic

question 5
the gland is sometimes called the emergency center of the body.

a. pineal

b. pituitary

c. thyroid

d. adrenal

question 6
when a neuron fires, it fires in a(n) fashion, as there is no such thing as “partial” firing.

a. all-or-none

b. rapid fire

c. accidental patterned

d. quick succession

question 7
andy has decided to seek medical for mood disturbances and sleep problems. which neurotransmitter is most likely involved in the problems andy is experiencing?

a. gaba

b. dopamine

c. serotonin

d. acetylcholine

question 8
jack suffered a brain injury as a result of hitting his head while waterskiing. one of the problems that developed was that jack could not pronounce certain words correctly for a long period of time until he had extensive speech therapy and can now speak as he did before his accident. this is an example of the brain’s which allowed the structure and function of his brain cells to change to adjust to the trauma.

a. adaptology

b. stagnation

c. plasticity

d. reflex arc

question 9
within neurons, the term potentiation refers to

a. synapses that show stronger and prolonged excitatory responses

b. structural changes in the neuron

c. neural plasticity

d. maturational development

question 10
marta was in an automobile accident and suffered an injury to her brain, resulting in paralysis of her left arm. what part of marta’s brain was injured?

a. auditory association area

b. motor cortex

c. somatosensory cortex

d. broca’s area