Simultaneous EEG-fMRI dataset

This multimodal neuroimaging repository comprises simultaneously and independently acquired Electroencephalographic (EEG) and Magnetic Resonance Imaging (MRI) data, originally presented in our research article: “Preservation of EEG spectral power features during simultaneous EEG-fMRI”. Eyes-closed and eyes-open resting-state EEG data were recorded outside the Magnetic Resonance (MR) environment, inside the MR scanner without image acquisition and during the simultaneous acquisition of functional MRI (fMRI). Additionally, participants performed an eyes opening-eyes closure block-design task during the outside scanner and simultaneous EEG-fMRI conditions. The EEG data acquired outside the scanner provides a reference signal free of MR-related artifacts, the data acquired inside the scanner records the contribution of the ballistocardiographic (BCG) but not the gradient artifact, and the EEG recorded during fMRI acquisition captures both the gradient and the BCG artifacts. Functional MRI data were obtained with and without simultaneous EEG recording, and structural images were collected with and without the subjects wearing the EEG cap. This represents one of the largest open-access EEG-fMRI datasets available and will enable other researchers to: 1) Characterize the impact of gradient and BCG artifacts on EEG data, 2) Assess the effectiveness of novel artifact removal approaches, 3) Perform hardware-setup comparison studies, 4) Address the quality of structural and functional MRI data collected with this EEG cap, and 5) Validate multimodal integrative analysis on simultaneously acquired resting-state and task EEG-fMRI.

本多模态神经影像数据集库包含同步且独立采集的脑电图（Electroencephalographic, EEG）与磁共振成像（Magnetic Resonance Imaging, MRI）数据，其相关成果最初发表于我们的研究论文《同步EEG-fMRI过程中脑电图频谱功率特征的保留》。闭眼与睁眼静息态脑电图数据分别在磁共振（Magnetic Resonance, MR）环境外、MR扫描仪内未进行图像采集时，以及功能磁共振成像（functional MRI, fMRI）同步采集过程中录制。此外，受试者在扫描仪外以及同步EEG-fMRI采集场景下完成了睁眼-闭眼块设计任务。扫描仪外采集的脑电图数据可提供无磁共振相关伪影的参考信号；扫描仪内未进行图像采集时采集的脑电图数据仅记录心冲击图（ballistocardiographic, BCG）伪影，无梯度伪影；而fMRI同步采集过程中录制的脑电图数据则同时包含梯度伪影与心冲击图伪影。功能磁共振成像数据采集包含同步脑电图录制与不同步脑电图录制两种场景，结构像采集则包含受试者佩戴脑电图帽与未佩戴两种情况。本数据集是目前公开可用的规模最大的EEG-fMRI数据集之一，可为其他研究者提供如下支持：1）解析梯度伪影与心冲击图伪影对脑电图数据的影响；2）评估新型伪影去除方法的有效性；3）开展硬件配置对比研究；4）探究佩戴该脑电图帽时采集的结构与功能磁共振成像数据的质量；5）针对同步采集的静息态与任务态EEG-fMRI数据，验证多模态整合分析方法的可行性。

搜集汇总

背景与挑战

背景概述

该数据集是一个多模态神经影像数据集，包含20名健康男性参与者的同时和独立获取的EEG和MRI数据，用于研究EEG在fMRI环境中的伪影影响及其去除方法。数据集提供了在MR环境内外采集的EEG数据，以及有/无EEG帽时的MRI数据，支持多种研究目的，如伪影特征分析、去除方法评估和多模态数据分析验证。