Final answer:
Retrograde amnesia is the type of amnesia where a person cannot remember events that occurred prior to a trauma, such as a head injury.
Step-by-step explanation:
Retrograde amnesia is the type of amnesia where a person cannot remember events that occurred prior to a trauma, such as a head injury. It is characterized by the difficulty in remembering episodic memories. For example, if someone experiences a car accident and wakes up in the hospital with no recollection of their life before that moment, it is likely a case of retrograde amnesia. Retrograde amnesia is different from anterograde amnesia, which refers to the inability to remember new information.