Ultra high-field (7 T) multi-resolution fMRI data for orientation decoding in visual cortex

Abstract

Multivariate pattern classification methods have been successfully applied to decode orientation of visual grating stimuli from BOLD fMRI activity recorded in human visual cortex (Kamitani and Tong, 2005; Haynes and Rees, 2005) [12], [10]. Though there has been extensive research investigating the true spatial scale of the orientation specific signals (Op de Beeck, 2010; Swisher et al., 2010; Alink et al., 2013; Freeman et al., 2011, 2013) [2], [15], [1], [4], [5], it remained inconclusive what spatial acquisition resolution is required, or is optimal, for decoding analyses. The research article entitled “The effect of acquisition resolution on orientation decoding from V1 BOLD fMRI at 7 T” Sengupta et al. (2017) [14] studied the effect of spatial acquisition resolution and also analyzed the strength and spatial scale of orientation discriminating signals. In this article, for the first time, we present empirical ultra high-field fMRI data, obtained as a part of the aforementioned study, which were recorded at four spatial resolutions (0.8 mm, 1.4 mm, 2 mm, and 3 mm isotropic voxel size) for orientation decoding in visual cortex. The dataset is compliant with the BIDS (Brain Imaging Data Structure) format, and freely available from the OpenfMRI portal (dataset accession number: http://openfmri.org/dataset/ds000113c ds000113c).

The psychosis human connectome project: Design and rationale for studies of visual neurophysiology

“…For each usage case, approximately 150–200 high-quality datasets (including repeated scans) are publicly available to support future analyses. We know of very few other 7 T fMRI or MRS data sets that are currently publicly available, and even fewer that are designed to investigate visual functioning ( Allen et al, 2022 ; Benson et al, 2018 ; Sengupta et al, 2017 ) and / or psychotic psychopathology.…”

Fine Perceptive GANs for Brain MR Image Super-Resolution in Wavelet Domain

“…Multi-resolution 7T (MultiRes 7T) functional MR images data was acquired with Siemens 7T scanner from OpenfMRI database with accession number: ds000113c [30]. The dataset consists of ultra high-field functional MR images recorded at four spatial resolutions (0.8 mm, 1.4 mm, 2.0 mm and 3.0 mm isotropic voxel size) from 7 participants.…”