FastSRM

The shared response model provides a simple but effective framework to
analyse fMRI data of subjects exposed to naturalistic stimuli.

However when the number of subjects or runs is large,
fitting the model requires a large amount of memory and
computational power, which limits its use in practice.

The FastSRM algorithm relies on an intermediate atlas-based representation. It provides considerable speed-up in time and memory usage, hence it allows easy and fast large-scale analysis of naturalistic-stimulus fMRI data.

FastSRM is freely available: https://github.com/hugorichard/FastSRM

Publications:

Richard, H., Martin, L., Pinho, A. L., Pillow, J., & Thirion, B. (2019). Fast shared response model for fMRI data. arXiv preprint arXiv:1909.12537.