The reason that the article doesn't go into that sort of thing is it was written for the general public. I am not expert in this area. I do know that over the y

The reason that the article doesn't go into that sort of thing is it was written for the general public. I am not expert in this area. I do know that over the years I have read a great many articles for the general public that refer to scientific study of infant-mother interaction. If you are seriously interested, do some research and read up about it. Let me add that, I do understand that people in the therapy field often make claims that are unsupported by scientific research, and so I can understand that you are suspicious in this case. But this field is different, there is lots of sound research.