Classical Conditioning: Zo's Cats and the Kitty Treat Box - Identify the Conditioned Stimulus

a. CS (conditioned stimulus), formerly the NS (neutral stimulus). 7. Zo’s cats salivate when she shakes their box of kitty treats because, in the past, she had shaken the box before giving them a treat. In this case, shaking the box serves as the: a. CS (conditioned stimulus), formerly the NS (neutral stimulus). b. UCR (unconditioned response), formerly the CR (conditioned response). c. NS (neutral stimulus), formerly the CS (conditioned stimulus). d. UCS (unconditioned stimulus), formerly the UCR (unconditioned response).