Alexis uses cocaine, which activates her sympathetic nervous system. Expecting her dealer, her hands shake and her heart pounds when she hears a knock on the door. Which alternation below CORRECTLY identifies the neutral stimulus, the CS, and the UCS?A. Neutral stimulus ---- knock on the door; CS---cocaine; UCS----cocaineB. Neutral stimulus ---- knock on the door; CS---knock on the door; UCS ---- pounding heartC. Neutral stimulus ---- knock on the door; CS--- Knock on the door; UCS cocaineD. Neutral stimulus ---- cocaine; CS--- Knock on the door; UCS cocaine
The correct answer is C. Neutral stimulus: knock on the door; CS: knock on the door; UCS: cocaine.
Explanation:
According to Pavlov, an individual can acquire a certain behavior by relating it to various stimulus.
At first, the knock on the door is considered a neutral stimulus, since it does not trigger any certain response.
The cocaine is an unconditioned stimulus since at first it only generates Alexis's shakiness and heart pound.
Once the neutral stimulus mixes with the unconditioned stimulus, the neutral stimulus (knocking on the door) becomes a conditioned stimulus since it will make Alexis nervous as she is expecting the dealer.
