I don't know what the state-of-the-art is, but there was some work done that suggested that memories are formed encoded in the language you know at the time of formation.
I dug up some of this a while back[1].
My dad, who taught our language to immigrants, mentioned that it was known in that field that immigrants who lost their native language would also lose a lot of the knowledge they had from their home country, like stuff taught at schools.
Thus the memories might be there, one just can't make sense of them anymore and so they become forgotten.
I dug up some of this a while back[1].
My dad, who taught our language to immigrants, mentioned that it was known in that field that immigrants who lost their native language would also lose a lot of the knowledge they had from their home country, like stuff taught at schools.
Thus the memories might be there, one just can't make sense of them anymore and so they become forgotten.
[1]: https://news.ycombinator.com/item?id=37204047