Ever wonder why you can’t remember anything that happened when you were a baby? Babies can certainly form memories- but they don’t store them in a way that allows them to access those memories when they’re older. It’s called infantile amnesia, and new research is shedding light on a possible physical mechanism for the phenomenon.
It turns out that when you’re a baby, new brain cells are generated at such a fast rate that essentially there’s too much cell turnover to allow the infant to store memories. They can form memories, but if they can’t store those memories, they can’t access them when they get older.
Through research in rodents, guinea pigs and degus, researchers found that changing the rate of neurogenesis (generating new brain cells) affects memory storage. Animals who had their neuron production slowed down were able to remember things better than those that had their neuron production sped up (like the high rate of neurogenesis in infants).
It’s possible that lack of language skills and emotional development still play a role in infantile amnesia, but investigation into the rate of neurogenesis is certainly interesting. By looking into other effects of changing the rate of neurogenesis, could a treatment or prevention for Alzheimer’s be on the horizon? What do you think?
Read more about it here: