Final answer:
If a person cannot form new memories after a brain injury, it is likely that the injury affected the hippocampus, which is responsible for the formation of new memories.
Step-by-step explanation:
If a person suffered a brain injury and could not form new memories, the injury most likely affected the hippocampus. The hippocampus is a region of the brain that is crucial for the formation of new memories. It plays a central role in converting short-term memories into long-term memories. Damage to the hippocampus can result in anterograde amnesia, where the person is unable to form new memories after the injury.
Learn more about brain injury and memory formation