Quote Originally Posted by Gooer View Post
Hm, i just looked it up. Since there are no pain receptors in the brain, but around the brain, such as the skull or muscles, in order for Datu to feel a headache, his brain would of had to swell, meaning that looking at the image would of done something to him that made his brain inflame (or other locations in the head, but the brain seems most likely)
Good point. Thickening of the tissues, swelling of the brain, increased blood flow...heck, even eye strain.
Was it causing him to turn or acting on the part of him that had turned?

So, has this happened over and over again? The Yeti, Abominable Snowmen, Sasquatch, Trolls all from past episodes? That could be why ancient symbols seem to cause the reactions. Or, it could be responsible for points of evolution in our species. Man, this is rich stuff to think about.