Final answer:
Perception is the brain's interpretation of a sensation and refers to the extent to which the brain's processing activity is devoted to a particular stimulus.
Step-by-step explanation:
Perception refers to the extent to which the brain's processing activity is devoted to a particular stimulus. It is the brain's interpretation of a sensation and occurs at higher levels in the nervous system. Neurons dedicated to a particular stimulus synapse with specific neurons in the brain or spinal cord.