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Updated: Jun 26, 2026

Simultaneous Data Collection of fMRI and fNIRS Measurements Using a Whole-Head Optode Array and Short-Distance Channels
Published on: October 20, 2023
Estimation of single-trial fMRI BOLD responses using combined EEG and fMRI measurements
Perttu O Ranta-aho1, Eini I Niskanen, Stefanos Georgiadis
1Department of Physics, University of Kuopio, and Department of Clinical Neurophysiology, Kuopio University Hospital, Kuopio, Finland.
Abstract:
In this paper, we present a method for modeling human brain response using combined fMRI and EEG measurements. A subspace is formed using the eigenvectors of data correlation matrix of augmented measurements. This subspace is then used for regularization of the fitting of parametric model to fMRI BOLD signal. The approach is utilized for single-trial estimation of blood oxygenation level dependent (BOLD) responses in fMRI time series.

