lena has a crush on someone she sits next to in her class. Her crush drinks Red Bull during every class. Recently, Elena smelled Red Bull when she was in the library and immediately felt her heart rate increase because it reminded her of her classroom crush. Determine what the US, UR, CS, and CR are: conditioned response, unconditioned stimulus, conditioned stimulus, unconditioned response
Increase in heart rate in the presence of her crush
The presence of her crush
Smell of Red Bull
Increase in heart rate due to Red Bull