Identify the UR, US, CR, and CS in this example: A cyclist was attacked by a dog while riding down county road 5. On subsequent trips down that road, the cyclist's heart pumps extra fast and he experiences greater anxiety.

A dog attacked a cyclists while ridding down county road 5 (CS)

On subsequent trips down the road (CS)

The cyclist's heart pumps extra fast (US).

He experience greater anxiety (UR)

Explanation:

Unconditioned Response (UR) - This is a response to a natural stimulus (Unconditioned Stimulus)

Unconditioned stimulus (US) refers to any stimulus that naturally and automatically triggers a specific response in humans or organisms.

Conditioned Stimulus (CS) - This is a learned substitute stimulus that have the same response as Unconditioned Stimulus.

Conditioned Response (CR) - This refers to as a response to learned stimulus and also to unconditioned stimulus.