Which of the following is an example of retrograde amnesia?

• A. A person experiences sudden episodes of intense fear without warning.
• B. A person cannot recall events that occurred before a traumatic brain injury.
• C. A person is unable to form new memories after a traumatic event.
• D. A person has difficulty recognizing familiar faces.

Answer: (B)

Verified step by step guidance

1. Understand the definition of retrograde amnesia: it is a type of memory loss where a person cannot recall events that happened before a specific incident, such as a traumatic brain injury.
2. Review each option and identify whether it involves memory loss related to events before or after the incident.
3. Option 1 describes sudden episodes of intense fear, which relates to emotional or anxiety symptoms, not memory loss.
4. Option 2 states that a person cannot recall events that occurred before a traumatic brain injury, which matches the definition of retrograde amnesia.
5. Option 3 involves inability to form new memories after a traumatic event, which is characteristic of anterograde amnesia, not retrograde amnesia.