The police found a man wandering through the downtown area. the man was disheveled and seemed to be in a daze. when the police asked the man for his name, he seemed bewildered. a search of missing persons reports revealed he had been reported missing three months ago in a town more than 700 miles away. the man is most likely suffering from .

Dissociative fugue.

Explanation:

Dissociative fugue is an uncommon type of dissociative amnesia that makes people forget their identity or significant autobiographical information. Usually includes some kind of unforeseen travel.

Dissociative fugue can last from a few hours and up to several months, if not longer, in which case the affected may wander away from home, create a new personality, and start a new life, unaware of the situation.

answer; no longer than a reasonable period of time;

answer; posthypnotic;