“Why does the nature of the traumatic event exert so much influence over whether what happened will be remembered in words? It appears that sudden, fast events completely overcome any defenses that a small child can muster. Long-standing events, on the other hand, stimulate defensive operations—denial, splitting, self-anesthesia, and dissociation. These defenses interfere with memory formation, storage, and retrieval. When the defenses are completely overrun by one sudden, unanticipated terror, brilliant, overly clear verbal memories are the result. On the other hand, when the defenses are set up in advance in order to deal with the terrors the child knows to be coming, blurry, partial, or absent verbal memories are retained. The child may even develop blanket amnesia for certain years in the past.”