Answer: Hippocampus
Explanation:
Hippocampus is the part of limbic system present in temporal lobe that supports learning, memorizing ability , regulation of emotion, motivation etc.It hippocampus faces any damage then memory loss, inability in creation of new memory,Alzheimer,not able to retrieve earlier learned information etc can be experienced by the person.
According to the question,Lucia has damaged her hippocampus of limbic system in the accident due to injury.Thus, she is experiencing inability to retrieve her own house structure and other things of house .