As mentioned in the title I am looking for a word to describe someone who does an action and forgets soon after. I do not mean that one's simply being forgetful but rather that they have a psychological problem, for instance:
A man wakes up at 8:00 a.m. and goes to work. At noon, halfway through his shift the man becomes confused, only having remembered leaving his house in the morning.
The word that I'm looking for is if this is a common occurrence in that person's life.