What is the scientific term for the tendency to see familiar patterns in things, that are actually something completely different? One of the most common examples of this bias, is the perception of human faces in clouds, cars and all kinds of other objects.
What I am looking for is a lower level misperception, which people are usually aware of on a higher, cognitive level. I.e., people either are, or can easily become aware of the fact that they are not actually seeing a face (or another familiar pattern).