"Overall, our results demonstrate that the development of global motion perception is affected by prenatal exposure to alcohol or marijuana but not nicotine or methamphetamine.
Our finding that global motion perception was improved by marijuana exposure and that marijuana reduced the negative effect of alcohol exposure may provide a foundation for further studies investigating new ways to prevent or ameliorate the negative developmental effects of prenatal drug exposure."
As atm you know druguse seems unadvisable.
That paper does offer some suprises mainly about Weed.
Does seems risk wouldn t advocate it druguse during.
i have no clue even what Valproic Acid might do.
Which was prescribed to me un-needed for bi-polar [wrong diagnose].
Had an indirect effect via my sperm on,
conceiving/ impregnating. the egg that became my son.
My ex was real strong quit smoking/ everything as soon as she knew.

imo in the way she just stopped everything at once [no Cannabis user btw]. To me she was mean, but my kids she nourished as best as she could.
Colostrum, breastfed and all in one bed.
Can t not love her for that what she did,
she did better then her parents who smoked and doped,
100 x better