PMID- 31946497 OWN - NLM STAT- MEDLINE DCOM- 20200511 LR - 20200928 IS - 2694-0604 (Electronic) IS - 2375-7477 (Linking) VI - 2019 DP - 2019 Jul TI - A simulated environment for early development stages of reinforcement learning algorithms for closed-loop deep brain stimulation. PG - 2900-2904 LID - 10.1109/EMBC.2019.8857533 [doi] AB - In recent years, closed-loop adaptive deep brain stimulation (aDBS) for Parkinson's disease (PD) has gained focus in the research community, due to promising proof-of-concept studies showing its suitability for improving DBS therapy and ameliorating related side effects.The main challenges faced in the aDBS control problem is the presence of non-stationary/non-linear dynamics and the heterogeneity of PD's phenotype, making the exploration of data-driven dynamics-aware control algorithms a promising research direction. However, due to the severe safety constraints related to working with patients, aDBS is a sensitive research field that requires surrogate development platforms with growing complexity, as novel control algorithms are validated.With our current contribution, we propose the characterization and categorization of non-stationary dynamics found in the aDBS problem. We show how knowledge about these dynamics can be embedded in a surrogate simulation environment, which has been designed to support early development stages of aDBS control strategies, specifically those based on reinforcement learning (RL) algorithms. Finally, we present a comparison of representative RL methods designed to cope with the type of non-stationary dynamics found in aDBS.To allow reproducibility and encourage adoption of our approach, the source code of the developed methods and simulation environment are made available online. FAU - Castano-Candamil, Sebastian AU - Castano-Candamil S FAU - Vaihinger, Mara AU - Vaihinger M FAU - Tangermann, Michael AU - Tangermann M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Annu Int Conf IEEE Eng Med Biol Soc JT - Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference JID - 101763872 SB - IM MH - *Algorithms MH - *Deep Brain Stimulation MH - Humans MH - Nonlinear Dynamics MH - *Parkinson Disease/therapy MH - Reproducibility of Results EDAT- 2020/01/18 06:00 MHDA- 2020/05/12 06:00 CRDT- 2020/01/18 06:00 PHST- 2020/01/18 06:00 [entrez] PHST- 2020/01/18 06:00 [pubmed] PHST- 2020/05/12 06:00 [medline] AID - 10.1109/EMBC.2019.8857533 [doi] PST - ppublish SO - Annu Int Conf IEEE Eng Med Biol Soc. 2019 Jul;2019:2900-2904. doi: 10.1109/EMBC.2019.8857533.