Final answer:
Retrograde amnesia is the inability to remember events in one's life that occurred prior to a brain injury.
Step-by-step explanation:
Retrograde amnesia is the inability to remember events in one's life that occurred prior to a brain injury. It is a type of amnesia that affects the ability to recall past memories. For example, if someone suffers a head injury and wakes up in the hospital with retrograde amnesia, they may not recognize their spouse, children, or parents because they have no memory of them.