Mental event

A mental event is a particular occurrence of something going on in the mind

For example, if Mary is walking through a park and she sees City Hall, that instance of seeing City Hall is an instance of perception&mdash;something that is supposed to be going on in Mary's mind. That instance of seeing is a mental event. It is an event because it is something that happens, and it is mental because it happens in someone's mind. If Mary thinks to herself, "I am a human being," that thought is a mental event; if she feels happy after doing well on an exam, that is a mental event. And so on.