One day while gardening, Greg tripped over a coil of wound-up hose and fell face first on the pavement. He suffered damage to hi
s hippocampal region, and while recovering in the hospital, he consistently greeted his friends and family as though he was seeing them again for the first time in a long time. Greg often forgot what he was doing during the day. However, he could still recall, without effort, adventures from his teenage years. MOST likely, Greg has what would be called:
Disfiguration that causes anterograde amnesia involves the hippocampus region including the limbic system and temporal lobe.
It can be said to be the loss which takes away the ability to build memories, which comes up after the memory loss(amnesia). It totally cause the inability to remember the recent past happenings, while memories that are long past are very much intact.