Those who knows how Derren and other "media-hypnotists" work knows that all the shows are prepared beforehand, chosing subject most likely to enter
a trance state etc.
Although flashes as shown in the video *do* induce sezisures etc. in some individuals and is also used in EEG testing to see whether a person suffer
from "light-induced" sezisures which may indicate epilepsy (spelled correctly?) it is highly unlikely IMHO that this should happen as shown in the
video.
One of my kids went trough EEG-testing after having a sezisure some years back. The strobe-flashing the doctors tested on him would show if he was
affected by flashes. When asked how this could manifest itself, the doctors said that it could be everything to be out of focus *a couple of seconds*
to a grand mal sezisure.
What we see in the video is nothing of that, but a "light-induced" trance state. How could this happen? Easy, it was inserted as a post-hypnotic
suggestion by Derren in the preparation of the show.
Rest assured that the guys friends was in on the whole thing.
If your are interested in the mechanism of stage hypnosis I recommend the book
The New Encyclopedia of Stage Hypnotism, by Ormond McGill
www.amazon.com...=1118857957/sr=1-1/ref=sr_1_1/102-6243598-9720163?v=glance&s=books
// kickass