As If You're Really There

I recently read of some research showing a person's brain reacted just as if it was in the real situation when the person was reading an engrossing book.

I suspect writing to blogs and FB and the like also feels as if it were the real thing when one is really caught up in it.

Likewise when I am talking with someone face to face it probably feels like I am really interacting with them, but I am not.

I am trapped 'behind' my brain and mind which tweeks and colors and interprets all inputs to and outputs from an ever changing 'self'.