Facing pain is effortful: key role of the supplementary motor area and anterior midcingulate cortex

Description This dataset contains derivatives generated for the study Facing pain is effortful: key role of the supplementary motor area and anterior midcingulate cortex. Participants underwent one fMRI session during which they performed a visuomotor force-matching task. The task included two experimental factors: Temperature (None, Warm, Pain) and Force (5% and 30% of the maximal voluntary contraction). The goals of this study were to identify 1) brain regions related to visuomotor task execution during pain and 2) brain regions associated with the perception of effort. Dataset Description N = 40 (20 female, 20 male; range 18–40 years; mean age 27.55 years; all right-handed) Exclusion criteria included any history of chronic pain, neurological or psychiatric disorders, major medical conditions (e.g., cancer or cardiovascular disease), musculoskeletal impairments affecting hand function, uncorrected visual deficits, and current use of psychotropic or analgesic medications. Scanner & Acquisition Scanner: 3T Siemens Prisma Fit with a 32-channel head coil. Functional sequence: T2∗-weighted gradient echo-planar imaging sequence (Multiband acceleration factor: 3; TR: 0.832 s; TE: 20 ms; flip angle: 70°; voxel size: 3 × 3 × 3 mm; acquisition matrix: 64 × 64; number of slices: 51). Project Organization The data are separated into two subfolders: `PainxEffort.fmriprep`: folder containing the preprocessed fMRI data in MNI152NLin2009CAsym space as well as the events files and the confounds files. `PainxEffort.glm`: folder containing first-level, second-level and group-level derivatives Two subfolders are included in `PainxEffort.glm` : `PainxEffort_task.glm`: folder containing first-level, second-level and group-level derivatives generated from events files defining trials over 30s. The files generated in this folder refers to the modelization of the activity related to the task execution from the onset to the offset of handgrip contraction, and thermal stimulation from its onset to its offset corresponding to 30s. `PainxEffort_onspain.glm`: folder containing first-level and group-level derivatives generated from events files defining the trials from the beginning of the thermal stimulation to the beginning of the motor contraction. The files generated in this folder refers to the modelization of the activity relatd to the thermal stimulation. Usage notes Please refer to the README.md in the zip files for more information regarding the data structure and specific usage notes.研究概况 本数据集为研究《直面疼痛需付出认知努力：辅助运动区（supplementary motor area）与前中扣带回皮层（anterior midcingulate cortex）的关键作用》生成的衍生数据。 受试者接受了一次功能磁共振成像（fMRI）扫描，期间完成了视动力量匹配任务。该实验包含两个实验因素：温度刺激（无刺激、温热、疼痛）与握力强度（分别为最大自主收缩力的5%与30%）。本研究的目标为：1）识别疼痛状态下参与视动任务执行的脑区；2）关联与努力感知相关的脑区。 数据集详情 样本量N=40（女性20名，男性20名；年龄范围18~40岁，平均年龄27.55岁；均为右利手） 排除标准包括：慢性疼痛病史、神经或精神疾病、严重内科疾病（如癌症或心血管疾病）、影响手部功能的肌肉骨骼损伤、未矫正的视觉缺陷，以及当前正在使用精神类药物或镇痛药物者。 扫描设备与采集参数 扫描设备：3T西门子Prisma Fit磁共振扫描仪，搭配32通道头部线圈。 功能成像序列：T2*加权梯度回波平面成像序列（多波段加速因子：3；重复时间TR：0.832秒；回波时间TE：20毫秒；翻转角：70°；体素尺寸：3×3×3毫米；采集矩阵：64×64；扫描层数：51层）。 项目数据组织 本数据集分为两个子文件夹： `PainxEffort.fmriprep`：该文件夹包含MNI152NLin2009CAsym空间下预处理后的功能磁共振成像数据，以及事件文件和混淆变量文件。 `PainxEffort.glm`：该文件夹包含一级、二级及组级分析衍生数据。 `PainxEffort.glm` 内含两个子文件夹： `PainxEffort_task.glm`：该文件夹包含基于定义30秒试次的事件文件生成的一级、二级及组级分析衍生数据。本文件夹内的文件对应任务执行相关的神经活动建模：从握力收缩开始至结束，以及热刺激从开始至结束（对应时长30秒）的神经活动。 `PainxEffort_onspain.glm`：该文件夹包含基于定义从热刺激开始至运动收缩开始的试次的事件文件生成的一级及组级分析衍生数据。本文件夹内的文件对应热刺激相关的神经活动建模。 使用须知 有关数据集结构与具体使用说明的更多信息，请参阅压缩包内的README.md文件。