Niagara Falls, Ontario's Nightmares Fear Factory has a Flickr feed full of visitors being terrorized in its environs. Interesting to note the emotional response (and a few ones that do not) facing a understood false danger, suspension of disbelief in action.
@ Scientific American, Mental exercises with neurofeedback may ease symptoms of attention-deficit disorder, epilepsy and depression--and even boost cognition in healthy brains
from Hauser, Robert M. 2002. "Meritocracy, cognitive ability, and the sources of occupational success." CDE Working Paper 98-07 (rev). Center for Demography and Ecology, The University of Wisconsin-Madison, Madison, Wisconsin
None of us can know the answers for sure until our own time comes, but the few individuals who have their brush with death interrupted by a last-minute reprieve can offer some intriguing insights.