There are four meanings for "perception":
1 the ability to see, hear, or become aware of something through the senses.
His perception of the bat's squeak was due to his good hearing2 the process of perceiving.
How is your perception of the view affected?3 a way of understanding or interpreting something.
My perception is that this law seems to be unjust.
4 intuitive understanding and insight.
Her sympathy for the child is a result of her perception that he was lonely. — ORIGIN Latin, from percipere ‘seize, understand’.