Without sounding superstitious, I will love to say that this is a good sign in the areas of research in paediatrics.
I guess this post is targeted at making findings on this rare occurrence. Am a medical personnel and I promise to get back to you on this.
Thanks for sharing this @swissclive
Congratulations on the arrival. He's such a cute baby.
It will be interesting to know how common this occurrence is. There was one other video I found, but in that one the baby was held upright and the head just rocked back. It wasn't a conscious move.