Bayesian Optimization of Neurostimulation (BOONStim)

bioRxiv [Preprint]. 2024 Mar 28:2024.03.08.584169. doi: 10.1101/2024.03.08.584169.

Abstract

Background: Transcranial magnetic stimulation (TMS) treatment response is influenced by individual variability in brain structure and function. Sophisticated, user-friendly approaches, incorporating both established functional magnetic resonance imaging (fMRI) and TMS simulation tools, to identify TMS targets are needed.

Objective: The current study presents the development and validation of the Bayesian Optimization of Neuro-Stimulation (BOONStim) pipeline.

Methods: BOONStim uses Bayesian optimization for individualized TMS targeting, automating interoperability between surface-based fMRI analytic tools and TMS electric field modeling. Bayesian optimization performance was evaluated in a sample dataset (N=10) using standard circular and functional connectivity-defined targets, and compared to grid optimization.

Results: Bayesian optimization converged to similar levels of total electric field stimulation across targets in under 30 iterations, converging within a 5% error of the maxima detected by grid optimization, and requiring less time.

Conclusions: BOONStim is a scalable and configurable user-friendly pipeline for individualized TMS targeting with quick turnaround.

Publication types

  • Preprint