Grief Ghosts

A scientific explanation of ghosts. But what about scary ghosts like the ones in movies that rips your guts out? Are those a hallucination?

There are hints that the type of grief hallucinations might also differ across cultures. Anthropologists have told us a great deal about how the ceremonies, beliefs and the social rituals of death differ greatly across the world, but we have few clues about how these different approaches affect how people experience the dead after they have gone. Carlos Sluzki, the owner of the shadow cat and a cross-cultural researcher at George Mason University, suggests that in cultures of non-European origin the distinction between “in here” and “out there” experiences is less strictly defined, and so grief hallucinations may not be considered so personally worrying.

Via Scientific American