Kayla fell and broke her arm at the age of two, but when asked if she remembers, she notes that she has no recollection of the incident. Kayla's inability to recall the event might be best explained as

• A. retrograde amnesia.
• B. infantile amnesia.
• C. anterograde amnesia.
• D. autobiographical amnesia.

Answer: (B)

Verified step by step guidance

1. Understand the concept of infantile amnesia: It refers to the inability of adults to retrieve episodic memories (memories of situations or events) from before the age of about 2-4 years.
2. Consider the age at which the event occurred: Kayla was two years old when she broke her arm.
3. Evaluate the typical memory development in early childhood: Most people cannot recall events from their early childhood due to the normal development of the brain and memory systems.
4. Differentiate between types of amnesia: Retrograde amnesia involves losing existing memories, anterograde amnesia involves the inability to form new memories, and autobiographical amnesia involves difficulty recalling personal history.
5. Conclude that Kayla's inability to remember the event is consistent with infantile amnesia, as it is common for individuals to not remember events from such an early age.