Is there any documentation or valid observations from experienced keepers of agressive behavior effects due to natural sunlight exposure? I was recently told that there is a syndrome called "psycho sympatic" (sp?) that causes natural "wild" behavior to be expressed more intensly in reptiles. After visiting with a large tame BT I was asking one of the pros at the shop questions trying to discover some reasoning to my BT's aggressive behavior. Besides the inborn temperment theory I wanted to determine if there were any variables that might be worth changing. He had mentioned this syndrome. Whether it has anything to do with my BT's behavior I would like to learn about it if it is true? Thanks for any input!