We present a non-parametric joint estimation method for fMRI task activation values and the hemodynamic response function (HRF). The HRF is modeled as a Gaussian process, making continuous evaluation possible for jittered paradigms and providing a variance estimate at each point.
Cite
@article{arxiv.1708.09762,
title = {Gaussian Processes for HRF estimation for BOLD fMRI},
author = {Michael Eickenberg and Aina Frau-Pascual and Andrés Hoyos-Idrobo},
journal= {arXiv preprint arXiv:1708.09762},
year = {2017}
}