I can’t find the article, but when the kiddo was biting more, I remember reading that you can’t tell a child not to bite when they are flooded (Gottman term for the amygdala being in charge), and just telling them not to bite when they are calm doesn’t work – they can’t remember in the heat of the moment. You have to role play appropriate responses.
Like training for martial arts so that when you are in fight/flight/freeze your automatic reflexes take over.
We have a policy that once calm and we’ve figured out what the problem was, we have to roleplay a healthier/more adaptive method at least 3 times so that those neural pathways are reinforced more than the maladaptive ones that were defaulted to. And for really big things like hitting or biting we do at least 5 – and include variations. Basically the “What Would Danny Do?” (there is a Darla one out now too) books, but instead acting them out and using our situations. We also tell (and keep meaning to write up) “choose your own adventure” versions – the first is what actually happened and why, and then we come up with two or three more other options and results.
This can also help with theory of mind and empathy. It is the reason that pretend play is so important and if it doesn’t come naturally, it should get modeled. The Hot Wheels City videos on YouTube actually helped us with that. The kiddo didn’t like watching real life people but that one only shows the hands using toys to do pretend play.