On the topic of stress, there is an interesting Dutch investigation into military personnel. I believe though that the report might be of interest for anyone working in a high stress environment.
http://tinyurl.com/m9kwpga
Short summary of the above PDF: The "scientifical" words for what others call easy things like "roll-back" (I like that expression) is perceptual narrowing and indeed it messes up your perception. One of the first senses to be disregarded is hearing unless it is short, distinctive and preferrably in your mother tongue. Motor skills deteriorate because smaller muscles aren't provided with enough oxygen due to the fight-or-flight state that adrenaline dictates where it is most useful to have a good flow in your large muscles to be able to do either. Loss of near vision is also among the things that hampers your performance.
EDIT: Another one, more directly related to stress in aviation:
http://tinyurl.com/pflgb95
If the radome found belongs to the missing plane, it looks very clean and I see no visible hail marks or scorching as by lightning.