Aperson eats a hamburger at a restaurant and develops a very bad stomachache after finishing eating. as a result of the sudden illness, the person cannot eat hamburgers anymore. just thinking about them makes the person feel sick to the stomach. in this scenario, the thought of a hamburger is:
a) unconditioned stimulus
b) conditioned stimulus
c) conditioned response
d) negative reinforcer

Conditioned stimulus

Explanation:

In the classical conditioned, these terms such as condition stimulus, UCS, CS, NS, etc are being used to modify the behavior of a person, animal, etc. The conditioned stimulus is neutral before as a conditioned stimulus. Ivan Pavlov was the first psychologist who has been used classical conditioning in which a person used CS, UCS, UCR, and CR.  

Thus here in the above statement, the person eats a hamburger. Before used it, it was a neutral stimulus but after using it, it becomes a conditioned stimulus.

false

true

true

false

true

jefferson hoped to establish trade with the native american people of the west and find a water route to the pacific. jefferson also was fascinated by the prospect of what could be learned about the geography of the west, the lives and languages of the native americans, the plants and animals, the soil, the rocks, the weather, and how they differed from those in the east.