Question

to feel pain, there must be sufficient of a neuron to create , which is the first step in neural communication.
suppression; propagation
reception; transmission
stimulation; an action potential
inhibition; a response
question 8 (2.5 points)
psychologists know that the brain rewires itself throughout life. which of the following is true about how this occurs?
if rewiring occurs later in life, it can only happen after someone experiences significant physical trauma.
the brain can rewire by changing existing connections among neurons, making new connections among neurons, and/or growing new neurons.
most neural pathways do not disappear, and few neural pathways are created. however, the arrangement of neural pathways changes dramatically.
when the brain rewires, it forges new neural pathways, and new neurons are grown; older connections and neurons are still maintained.

Explanation:

First Question (About Neural Communication for Pain Sensation)

To feel pain, a neuron needs sufficient stimulation to generate an action potential, which is the initial step in neural communication. "Suppression" would reduce activity, "reception" is about detecting, not the trigger for action potential, and "inhibition" reduces activity. So "stimulation; an action potential" fits.

Brain rewiring (neuroplasticity) involves changing existing neuron connections, forming new ones, and/or growing new neurons. The first option is wrong (rewiring isn’t only after trauma), the third is wrong (neural pathways do change in creation/disappearance), and the fourth is wrong (older connections/neurons aren’t always maintained). The second option correctly describes neuroplasticity mechanisms.

Answer:

C. stimulation; an action potential

Second Question (About Brain Rewiring)