It’s likely that there are significant gaps in your childhood memories, and what you do remember may seem unclear or jumbled. While almost everyone experiences childhood amnesia, the reasons behind this phenomenon are still not entirely understood. Here are four possible explanations for why we struggle to recall much from our pre-school days.
1. Your Brain Was Still Developing
Many experts in neuroscience believe that infants cannot form long-term memories because their brains are not yet fully developed.
Although infants can create certain types of memories, two key brain systems involved in memory formation—the hippocampus and the medial temporal lobe—are already functional by age one. However, the prefrontal cortex, which plays a crucial role in forming episodic memories (memories related to personal experiences), doesn’t fully mature until the early twenties. Before this development, while infants can learn skills or recognize familiar objects, they can’t fully store memories of specific events.
2. Your Language Skills Were Limited
Some psychologists suggest that our inability to remember infancy stems from not having the language skills to frame our memories – meaning we couldn’t properly categorize or store them. Think about it: learning a language fundamentally changed the way you viewed the world. For instance, during your first doctor’s visit, you didn’t think in terms of 'stethoscopes,' 'scales,' or 'syringes.' Before you had the words to describe your environment, your thoughts were likely more abstract. As a result, memories from your pre-verbal days might not be as vivid, since your way of mentally representing the world was different.
While language isn’t strictly necessary to form memories, it certainly aids in the process of rehearsing them, both out loud and in your mind. For example, you might not have recalled the time Tommy wet his pants in third grade unless you frequently discussed it with him (and yourself). But if you were too young to articulate what happened, you’d have missed the chance to replay and solidify the memory through conversation.
3. You Didn’t Have a Sense of Self
Certain psychologists argue that babies must first develop a sense of self in order to create autobiographical memories—those related to personal experiences. Without a clear understanding of who they are, infants struggle to identify what events are personally significant and worth remembering.
One study on self-awareness and memory supported this theory. Psychologist Hark Howe examined whether infants could recognize themselves in a mirror. Afterward, he let them play with a stuffed animal and instructed them to place it in a drawer for safekeeping. Two weeks later, he returned and found that only the babies who recognized themselves in the mirror were able to remember where they had hidden the toy. Those who couldn’t recognize themselves had no memory of what they did with the teddy bear.
4. You Lacked Retrieval Cues
Other psychologists propose that we don't struggle to form memories, but rather to retrieve them as we grow older. Our childhood memories may fade simply because there are no triggers to bring them back. Even if you’ve lived in the same house your whole life, the world now is very different from the way it looked when you were a baby. Consider how your first birthday party might have seemed from your perspective at that time: towering furniture, difficult-to-eat food, and strangers speaking an unfamiliar language. As an adult, you’re unlikely to encounter a picnic table surrounded by people speaking Esperanto, so there’s nothing to prompt the memory of Grandma introducing you to buttercream frosting. The drastic change in your perspective since childhood makes it hard for anything to jog your memory.
Shameless conversation-starter: What's the earliest memory you have from childhood?
