 um or you hear the noise of the ac in the background and it could be quite irritating at first but very quickly you just don't notice it anymore right so all these are perceptual examples but our emotional reactions to things it could be a dog barking it's like the neighbor got a new dog and it's really scary and we have a fear reaction but the second time less so and the third time less so so there's perceptual habituation there's emotional habituation um