An individual receives frequent injections of drugs, which are administered in a small examination room at a clinic. The drug itself causes increased heart rate but after several trips to the clinic, simply being in the small room causes increased heart rate. Accelerated Heart rate The accelerated heart rate to the room. The Drug Listen 1. Unconditioned Stimulus (UCS) 2. Unconditioned Response (UCR) 3. Conditioned Stimulus (CS) 4. Conditioned Response (CR) The small room