How does the brain primarily interpret the strength of a stimulus in the nervous system?
a. based on the size of the action potential
b. based on the frequency of the action potential
c. based on how much potassium is in the nerve cell
d. based on which chemicals are released at nerve junctions

The brain primarily interpret the strength of a stimulus in the nervous system based on the frequency of the action potential.

Option B

Explanation:

The sign that is transmitted down the axon is called action potential. It passes quickly through the axon. At the axon terminal the entry of the action potential by and large causes the arrival of a transmitter that influences the layer of the objective neuron.

The activity possibilities imprint times at which the cell layer at the neuronal cell body arrives at the terminating limit.  In this manner, there is an arrangement of action potential containing data about the layer potential at the neuronal cell body.

It is the data conveyed by the train of activity possibilities that gives data at the projection focuses for the neurons. Thus it is inferred that brain uses the frequency of the action potential to interpret the primary stimulus.

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."