I don't believe that we just experience one pure emotion.usually we experience a couple of emotions together or one emotion morphing into another.so we may experience fear and then it goes into something else........we see a lion then have fear then think run.........now what I believe happens when people are paralysed with fear is again a mixture of emotions happening at once. It is the mixture that sends them into brainfart mode and makes them inactive

....I have experienced this myself at work, when I had a lot of deadlines to meet,quickly and I was given a couple more tasks which consumed a lot of my freetime, but also they were things that I had never done before

.so I quickly found myself making stupid mistakes and wishing that I was somewhere else........also many years ago I witnessed a motorcycle accident...and I experienced what folks call the "Halo" effect where you don't believe something is happening.....the kind of thing were you think No I'm imagining this

..................and if you combine all these things into one package you get the paralysed by fear/brainfart mode.........you can see this sort of thing in crime statistics or crime reports. Rape victims do not believe that it is happening to them, even when it is

....folks don't believe they are being robbed.years ago I witnessed an armed Robbery on a cash in transit vehicle.and I did not believe what I was seeing

......................Now a lot of folks look to the military or the police for ideas about this sort of thing, but that is very wrong.unless you belong to either of these organisations.........they pick up things subliminaly and by experience, we all do.but from our own work experiences.......I am quite blase about courts and dealing with police officers because I do it all the time...I am useless in a medical environment
but my wife being a nurse has no problems.
So what does that say about warriors and fighting spirit.........well pretty much that it is what they do and they get used to it...on the flip side however you have insurgents or terrorists.........now in some way perhaps they are greater warriors than the military, because they don't have all that training and it's sort of funny because as a warrior society has given you permission to ignore the usual morality that most people live by,,,,,,,this permission hasn't been given to the insurgent.so he has gone against all the rules imposed on him by society.maybe he is the true warrior

..............if you look at it from a bravery viewpoint .who is the braver the military guy shooting his heavy machine gun in his attack helicopter a mile away.or the roadside bomber...neither in my book.
How do we apply this to martial arts...well all the traditional martial arts in Japan are military in nature.karate isn't really a traditional martial art it's a "Contempary" art,,,compare shotokan history to katori shinto ryu and you have a difference of about 500 years of practise

...if you are looking for "Self Defence" then you have to dig a bit deeper.......... a lot of western concepts and ideas are far better, boxing, CQB etc