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340. Ben Alderson-Day — Presence: The Strange Science and True Stories of the Unseen Other

The Michael Shermer Show

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The Effect of Asynchronous Touches on the Brain

When you get people into this situation and they start to get something essentially a kind of whole body illusion where they feel like either they move forward or that they're touching their own back. And the reason that happens is that our brain takes all the evidence it has, knows we're moving but doesn't know there's another touch behind us. It comes to the conclusion two plus two equals five it's me touching my own back this is all part of me. Not anybody else going on here. People with Parkinson's are particularly susceptible to this phenomenon because you've broken that linkYou set up an expectation of self and then you've pulled the rug with these asynchronous touches.

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