Lara is trying to remember events from her life at 18 months of age. however, as hard as she might try, she has no conscious memory for anything that occurred before her third birthday. this is likely due to the fact that her , which is involved in storing explicit memories, was not fully developed at that age.

This would be the hippocampus. This structure in the brain is responsible for encoding, storing, and retrieving memories. At ages before around 3 years, this structure does not fully develop and memories from before that age are not readily available. Most "earliest" memories that people can recall are at about this timeframe.

They are called independent