Identify the UCS, UCR, CS, CREmily is driving in a heavy snow storm when the brake lights on the car ahead of her come. She hits her brakes but is unable to avoid hitting the car. She is badly shaken up and the next time she is driving in the snow she notices that she tenses up every time she sees brake lights come on ahead of her.

UCS = the car accident

UCR = anxiety (shaken up; tenses up)

CS = brake lights

CR = anxiety about brake lights

Explanation:

In classical conditioning, a new behavior is learned through the pairing of a strong stimulus with a previously neutral stimulus. UCS stands for unconditioned stimulus, UCR for unconditioned response, CS for conditioned stimulus, and CR for conditioned response.

In the passage, the UCR car accident becomes associate with a neutral stimulus, brake lights. Before the accident, brake lights did not cause any tensing up in Emily; they merely meant the car in front of her was slowing down. Because of the accident, brake lights took on a new meaning and began to cause her UCR anxiety. Now, a new behavior has been conditioned. CS brake lights have become a synonym for accident, causing CR anxiety.