The first thing to keep in mind is not to confuse them with nightmares, of which the child is agreed. What most characterizes the night terror is amnesia (do not remember) what happened. The episode can be bulky and makes feel the parents on the verge of impotence and not knowing what to do, since signs of vegetative activation of intense character: sweating, tachycardia, crying, eyes open and sometimes exorbitant, gestures nervous, uncoordinated and fast, capable of scaring anyone and most self-sacrificing parents. The event usually has a duration between 1 and 10 minutes, after which, normally the child back to sleep peacefully. We should remember that unlike nightmares the child doesn't remember, and we can ask ourselves why doesn't remember.
Simple, night terror occurs in the non-REM phase, i.e. when the child doesn't dream, or in the passage from the non-REM phase to the REM (dream) phase. What happens is a hiperactivacion of the central nervous system, which prevents a transaction fluid between the various stages of sleep. The more normal causes of night terrors are: tiredness, being sick, being stressed by some circumstance any new medication that your outlet produces simple neurological alterations. Sleep in an environment away from home or different. Loss of loved ones or pets.
If episodes are very repetitive, should be ruled out possible flattering medications, neurological problems (rarely and usually have a genetic component), and above all and the psychological loss of a loved one, pet, divorces, change of residence, stressful situation at home. These psychological aspects, are those that a small child, with a magical thinking, where everything is and shall be in accordance with their wishes, can not develop, behaving in a State of distress without a referent clear for him or with guilt that develops these episodes by nervous imbalance. Especially from age 6 to 12, the child begins to understand death, as such, as irreversible, which brings him a true disorder in his conception of things. Hear other arguments on the topic with Jeff Feig.