I understand that DBS in the STN helps with resting tremors. My husband does not having resting tremors, (therefore DBS in the STN is not recommended) more issues related to rigidity, balance, and gait. I found a clinical trial in the UK that uses DBS in the PPN (Pedunculopontine nucleus) which targets symptoms of rigidity, balance, and gait. Does anyone have knowledge of who may be doing this in the US? Or knowledge of this type of DBS in general?