Belief in God or the devil?

[FreeTony]

I know most atheists either wrestle with the concept of a God or feel inclined to dismiss it all together and would figure this goes for demonic activity also. However I've never directly asked, do most atheists believe there is anything to demonic possession, ghosts, psychic mediums, weigi boards or the like? Or are these just psychological situations that can be explained away by science as hoaxes?.

Depends what you mean by a hoax. The person involved may believe they are possessed, just as some mediums believe they are the real deal.

Demonic posession: No evidence of any supernatural occurences, despite the fact it should be fairly easy to video an "The Excorcist" style posession. Tends to occur in psychologically disturbed teenage girls.
Ghosts: No evidence of anything that . Lots of hoaxes too.
Mediums: None have been scientifically shown to do anything other than guessing. Lots have been exposed as frauds.
Ouji Boards: Same concept as the medium table trick. It's just a magic trick. Different pressures applied by different people causes the movement. It would be a boring game if no one touched the circle bit as it would never move.

If you are interested, James Randi's book deals with many of these. He has had hundreds of people claim to have these powers. Some of these people have even fooled some scientists. However they were all using simple magic tricks.

So to sum up. Lots of solid evidence for hoaxing and lots of scientific understanding of the psychological processes at work in those who do believe*. Zero evidence that anything supernatural has occured.

*There's a good reason why people tend to hear ghosts at night in houses when they are on their own, and most importantly when it has been suggested to them a ghost lives there. Well actually there is more than one - Sleep Paralysis explain why both Alien Abductions and Ghost sightings occur most often when people are in bed.

en.wikipedia.org/wiki/Sleep_paralysis