High-quality multimodal MRI with simultaneous EEG using conductive ink and polymer-thick film nets

This dataset contains raw 3T and 7T anatomical and functional MRI data from 1 phantom and 8 human subjects (5 subjects at 3T and 3 subjects at 7T). At 3T, 1 phantom and 5 human subjects underwent a set of anatomical MRI scans with and without the Inknet EEG net. At 7T, 3 human subjects completed a visual task with and without the Inknet EEG net. The visual stimulus was a full-field flickering stimulus.

For the 3T phantom MRI scan (sub-01), the set of anatomical MRI scans included a T1-weighted MPRAGE, B1 map, and SWI scan. These scans were run without an EEG cap, with the conventional copper wire EEG net (Cu-Net), and with the Inknet.

For the 3T human MRI scans (sub-02 through sub-06), the set of anatomical MRI scans included a T1-weighted MPRAGE, B1 map, FLAIR, SWI, and T2-weighted scan. One subject's (sub-04) T2-weighted sequence was not acquired and one subject's (sub-05) FLAIR image was excluded because of severe head motion. These were all run with and without the Inknet EEG cap.

For the 7T human MRI scans (sub-07 through sub-09), the anatomical MRI scan is a T1-weighted MPRAGE. The functional scan is a BOLD-weighted gradient-echo EPI sequence. In fMRI runs, participants performed a block design visual task with 16-second ON and 16-second OFF blocks to assess visual responses. ON blocks consisted of a 12 Hz flickering radial checkerboard, and OFF blocks consisted of a median luminance grey screen.