The reason to lose memory of childhood is elucidated

Bylovecatz

Even if I remember my childhood memory, I remember it was about 3 and a half years old, and there seems to be few people who remember the previous memories. This phenomenon is called "Infantile amnesia"It is said that the research in recent years has begun to accurately clarify what is happening in the brain.

Why You Can not Remember Being a Kid
http://nautil.us/issue/58/self/this-is-where-your-childhood-memories-went-rp

Toronto Children's HospitalMr. Paul Franklund of the neuroscientist said, "Infantile amnesia suggests that our brain must destroy much of childhood memory to become an adult." .

"Infantile amnesia" was a psychiatrist in AustriaSigmund FreudHe gave a name at the beginning of the 1900 's. Mr. Freud insists that awakening of sex has erased memory of childhood, and some psychologists agreed with this claim. However, the most commonly accepted view was that children were not able to form stable memories until the age of seven. After that, research has been carried out based on this view for about 100 years.

Child psychology reform will begin in the late 1980s.Emory UniversityPatricia Bauer and other psychologists create simple toys. After letting the young child learn how to play it, I tested how long the child can play with the correct procedure.

ByMarco Verch

Experimental results show that the memory of young children aged 3 and under varies depending on age but continues for a certain period of time. At 6 months of age, I remember that memory is 1 day, 9 months after birth for about 1 month, 2 years at about 1 year. Also, in a study conducted in 1991, it turned out that a child aged four and a half could remember the detailed memory that went to Disney World 18 months ago.

However, it turned out that children began to lose memory since about 6 years of age. According to an experiment conducted by Mr. Bauer in 2005, children aged 5 and a half remembered more than 80% of the experience at the age of 3, but children 7 and half had only less than 40% of the memories.

Through this research, young children can access memories produced during the very beginning of their lives, but many of these memories will disappear at a momentum far exceeding "forget" experienced as adults It became clear. And I showed that there is a contradiction in the idea that "stable memories can not be formed until the age of 7" of "childhood amnesia".

Mr. Bauer says, "While the child's brain is experiencing long-term development outside the womb, it is still growing, and large-scale and complex brain tissue like our adult brain is not completed As a result, the long - term memory obtained in the first three years is an unstable memory created by the immature brain, so it tends to be lost as it gets aged. "

Mr. Frankland and his wife, Sina Jossellin, are experimental on mice and show the results that will be a hint for elucidating "childhood amnesia". It is said that a baby's mouse could only retain about one day of memory like a human being, but using a drug or genetic engineering to grow the brainNervous developmentIt seems that it hindered the baby 's mouse from having a stable memory.

ByMichael Neel

Furthermore, when examining how brain cells change by growth of mice, older cells do not replace new cells, rather they are growing in the form of new cells being added to existing brain cells It is said that. This seems to indicate that the old memories have not been wiped out by neurogenesis. However, it has been shown that memory has been thoroughly reconstructed in the brain by the addition of new cells.

Mr. Franklund says, "By joining new brain cells and replacing the memory retrieval scheme with new ones, we can not believe that we can not read the memories of children who can only access with the old scheme," he said, It seems that thinking that it is losing access to the memory of the brain leads to elimination of memory.