Naturalistic viewing: An open-access dataset using simultaneous EEG-fMRI

In this work we present a dataset that combines functional magnetic imaging (fMRI) and electroencephalography (EEG) to use as a resource for the understanding of human brain function. The dataset can also be used for optimizing preprocessing methods for simultaneously collected imaging data. The dataset includes simultaneously collected recordings from 22 individuals (ages: 23-51) across various visual and naturalistic stimuli. In addition, physiological, eye tracking, electrocardiography, and cognitive and behavioral data were collected along with this neuroimaging data. Visual tasks include a flickering checkerboard that was collected outside and inside the MRI scanner (EEG-only) and simultaneous EEG-fMRI recordings. Simultaneous recordings also included rest, the visual paradigm Inscapes, and several short video movies representing naturalistic stimuli. We present this dataset as part of an effort to provide open-access data with the goal of increasing the opportunity for discoveries and understanding of the human brain and evaluating the correlation between electrical brain activity and blood oxygen level-dependent (BOLD) signals. ### Competing Interest Statement The authors have declared no competing interest.