What’s the name for when you see something and think it’s something else? [8.5]

For example when you see a leaf in the road and think it’s a bird for half a second, or mistake a coat hanging on a chair for a person for a moment, or like you see a log and think it’s a pig for half a second? I am googling my question and I can’t find an answer. But I get that effect when I’m high. Does anyone else?