2.   Anterograde amnesia is loss in the ability to remember any new information or create new memories due to brain trauma.  You are only able to remember past events and experiences prior to the anterograde amnesia.  The area of the brain usually affected by this is the hippocampus.  You are no longer able to consolidate memories as a result of this.  In retrograde amnesia, the opposite happens.  You lose the ability to remember your past and any episodic memories.  For example, I wouldn't remember that last month I celebrated my friend's engagement at a Meditteranean restaurant in North Bergen.  You would also no longer recognize your family members, relatives, or friends.....so you would no longer be able to nurture those relationships or have the same connection you once did.