Multimodal EEG and fNIRS Biosignal Acquisition during Motor Imagery Tasks in Patients with Orthopedic Impairment

This dataset consists of raw 18-channel EEG and functional near infrareds(fNIRS) from 7 human paticipants with orthopedic Impairment during motor imagery(MI). The participants performed a series of MI-related trials across three sessions. These sessions comprised 40 trials, of which four different MI tasks were presented in random order (e.g., Reach → Twist → Lift → Reach → Grasp → Grasp → Twist → Reach → Lift → Reach). Each trial began with 3 s of fixation cross. The monitor then displayed a 4 s visual cue, followed by 3 s of letters indicating the ready state with a gray screen to eliminate the afterimage. The participants were then instructed to perform the imaginary movement for 5 s in the given order.本数据集包含7名骨科功能障碍受试者在运动想象（Motor Imagery, MI）过程中采集的原始18通道脑电图（electroencephalogram, EEG）与功能近红外光谱（functional near infrareds, fNIRS）信号。受试者在三次实验会话中完成了一系列与运动想象相关的试次，每轮会话包含40个试次，四种不同的运动想象任务以随机顺序呈现（例如：伸手→扭转→举起→伸手→抓握→抓握→扭转→伸手→举起→伸手）。每个试次均以3秒的注视十字点启动，随后显示器将呈现4秒的视觉提示，接着是3秒的字母提示以表明准备状态，同时配合灰色屏幕以消除视觉后像。之后受试者需按照指定顺序完成时长5秒的想象运动任务。

搜集汇总

背景与挑战

背景概述

该数据集包含7名骨科损伤患者的原始18通道EEG和fNIRS多模态生物信号，采集于运动想象任务期间，任务涉及40个试验，涵盖四种不同的运动想象动作（如Reach、Twist、Lift、Grasp）。数据集采用BIDS标准格式，文件大小为616.57MB，包含89个文件，适用于研究运动想象在康复或神经工程中的应用。