I think some foster moms here must have experience with this sort of thing. I would be interested in both research and "just" opinions.
We are a short term foster family and had a baby here when she was 6-8 months old, so for two months. While with us, she was held and carried in a wrap all the time, slept in the same room with me, etc. However, she also kept on having visit with birth family and went through some rather traumatic things during this time period. She was then reunited with birth parents, until a couple of weeks ago.
She has now been placed in another foster family. (This kills me, but we were caring for another baby when she was placed in crisis care and I was never even told that she had been taken from the parents. I had no legal right to know, although the social workers knew how attached we all were to her.) I just happened to bump into her and the new foster mom. As I knew nothing about her new situation, it was a huge shock to me. Now I am wondering, if at any level she remembered me. It had been 5 months since she left, so, rationally, I would say no. Yet, I cannot help wondering.