(I'm only vaguely aware of the field, but nothing I've heard has suggested that credibly.)

My comment was mostly based off DNA left by interbreeding between Neanderthal and Sapiens. Modern humans do carry a small but significant share of DNA inherited from our Neanderthal ancestors [1]. My point was that Genes left by these ancestors were heavily filtered by natural selection for brain-related regions.

That being said, loking it up again now, it seems that more recent publications draw more nuanced conclusions [2]. So maybe my knowledge is out of date, and it's time to pick up the books again :)

[1]: https://en.wikipedia.org/wiki/Neanderthal_genetics [2]: https://www.johnhawks.net/p/many-people-have-a-little-neande...