I've started searching through my notes from a year ago, but this is what I came up with so far (a reference to the research, not a research paper itself) : https://www.news-medical.net/news/20200914/Babies-of-depressed-or-anxious-mothers-exhibit-physiologically-stronger-signs-of-stress.aspx#:~:text=%22We%20found%20that%20if%20a,the%20non%2Dinteractive%20phase%22.