[tomek_ycomb]

It's not entirely clear from a brief Google what behavior extinction is.

However, I don't really think this is particularly parallel let alone same as any sort of prescriptive process for reward/training which the brief search on Google suggested behavior extinction is about.

I'm not going to totally deny that there are any parallels between any behavior reinforcement mechanism m, but I'd sooner redirect to reading more about body keeps score before making the parallels to another concept (in this case)