xenificity/FlankerTask

This dataset was obtained from the OpenfMRI project (http://www.openfmri.org). Accession #: ds102 Description: Flanker task (event-related) The "NYU Slow Flanker" dataset comprises data collected from 26 healthy adults (age and sex included in Slow_Flanker_age_sex.txt) while they performed a slow event-related Eriksen Flanker task. **Please note that all data have been uploaded regardless of quality it is up to the user to check for data quality (movement etc). On each trial (inter-trial interval (ITI) varied between 8 s and 14 s; mean ITI=12 s),participants used one of two buttons on a response pad to indicate the direction of a central arrow in an array of 5 arrows. In congruent trials the flanking arrows pointed in the same direction as the central arrow (e.g., < < < < <), while in more demanding incongruent trials the flanking arrows pointed in the opposite direction (e.g., < < > < <). Subjects performed two 5-minute blocks, each containing 12 congruent and 12 incongruent trials, presented in a pseudorandom order. Functional imaging data were acquired using a research dedicated Siemens Allegra 3.0 T scanner, with a standard Siemens head coil, located at the NYU Center for Brain Imaging. We obtained 146 contiguous echo planar imaging (EPI) whole-brainfunctional volumes (TR=2000 ms; TE=30 ms; flip angle=80, 40 slices, matrix=64x64; FOV=192 mm; acquisition voxel size=3x3x4mm) during each of the two flanker task blocks. A high-resolution T1-weighted anatomical image was also acquired using a magnetization prepared gradient echo sequence (MPRAGE, TR=2500 ms; TE= 3.93 ms; TI=900 ms; flip angle=8; 176 slices, FOV=256 mm). Please cite one of the following references if you use these data: Kelly, A.M., Uddin, L.Q., Biswal, B.B., Castellanos, F.X., Milham, M.P. (2008). Competition between functional brain networks mediates behavioral variability. Neuroimage, 39(1):527-37 Mennes, M., Kelly, C., Zuo, X.N., Di Martino, A., Biswal, B.B., Castellanos, F.X., Milham, M.P. (2010). Inter-individual differences in resting-state functional connectivity predict task-induced BOLD activity. Neuroimage, 50(4):1690-701. doi: 10.1016/j.neuroimage.2010.01.002. Epub 2010 Jan 15. Erratum in: Neuroimage. 2011 Mar 1;55(1):434 Mennes, M., Zuo, X.N., Kelly, C., Di Martino, A., Zang, Y.F., Biswal, B., Castellanos, F.X., Milham, M.P. (2011). Linking inter-individual differences in neural activation and behavior to intrinsic brain dynamics. Neuroimage, 54(4):2950-9. doi: 10.1016/j.neuroimage.2010.10.046 This dataset is made available under the Public Domain Dedication and License v1.0, whose full text can be found at http://www.opendatacommons.org/licenses/pddl/1.0/. We hope that all users will follow the ODC Attribution/Share-Alike Community Norms (http://www.opendatacommons.org/norms/odc-by-sa/); in particular, while not legally required, we hope that all users of the data will acknowledge the OpenfMRI project and NSF Grant OCI-1131441 (R. Poldrack, PI) in any publications.本数据集源自OpenfMRI项目（http://www.openfmri.org）。 存档编号：ds102 数据集描述：事件相关侧翼任务（Flanker Task） **“NYU慢速侧翼任务”数据集包含26名健康成年人的采集数据（年龄与性别信息详见Slow_Flanker_age_sex.txt文件），受试者在实验过程中完成了慢速事件相关埃里克森侧翼任务（Eriksen Flanker Task）。** **请注意：所有数据均已上传，未做质量筛选，数据质量（如头动等）的核查工作需由使用者自行完成。** 每个试次的试次间隔（inter-trial interval, ITI）为8秒至14秒不等，平均试次间隔为12秒。受试者通过反应垫上的两个按键之一，判断由5个箭头组成的阵列中中央箭头的朝向。在一致性试次中，侧翼箭头与中央箭头朝向一致（例如<<<<<）；而在难度更高的非一致性试次中，侧翼箭头与中央箭头朝向相反（例如<<><<）。 受试者共完成两个5分钟的任务块，每个任务块包含12个一致性试次与12个非一致性试次，试次以伪随机顺序呈现。 功能成像数据由位于纽约大学脑成像中心的西门子（Siemens）Allegra 3.0T专用科研磁共振扫描仪采集，搭配标准西门子（Siemens）头部线圈。 在两个侧翼任务块的每个任务块中，我们均采集了146层连续的回波平面成像（Echo Planar Imaging, EPI）全脑功能成像容积，相关参数如下：重复时间（Repetition Time, TR）=2000毫秒，回波时间（Echo Time, TE）=30毫秒，翻转角=80°，共40层切片，矩阵尺寸为64×64，视场角（Field of View, FOV）=192毫米，采集体素大小为3×3×4毫米。同时，我们还使用磁化准备快速梯度回波序列（Magnetization Prepared Gradient Echo, MPRAGE）采集了高分辨率T1加权解剖图像，参数为：TR=2500毫秒，TE=3.93毫秒，反转时间（Inversion Time, TI）=900毫秒，翻转角=8°，共176层切片，视场角（FOV）=256毫米。 若您使用本数据集，请引用以下参考文献之一： 1. Kelly, A.M., Uddin, L.Q., Biswal, B.B., Castellanos, F.X., Milham, M.P. (2008). 调控行为变异性的脑功能网络间的竞争. 《神经影像学》, 39(1):527-537 2. Mennes, M., Kelly, C., Zuo, X.N., Di Martino, A., Biswal, B.B., Castellanos, F.X., Milham, M.P. (2010). 静息态功能连接的个体差异可预测任务诱导的血氧水平依赖（Blood Oxygen Level Dependent, BOLD）活动. 《神经影像学》, 50(4):1690-1701. doi: 10.1016/j.neuroimage.2010.01.002. 2010年1月15日在线发表，勘误信息见《神经影像学》2011年3月1日第55卷第1期第434页 3. Mennes, M., Zuo, X.N., Kelly, C., Di Martino, A., Zang, Y.F., Biswal, B., Castellanos, F.X., Milham, M.P. (2011). 神经激活与行为的个体差异与内在脑动态的关联. 《神经影像学》, 54(4):2950-2959. doi: 10.1016/j.neuroimage.2010.10.046 本数据集基于公共领域贡献与许可协议v1.0（Public Domain Dedication and License v1.0）发布，完整协议文本可访问http://www.opendatacommons.org/licenses/pddl/1.0/查阅。我们希望所有使用者遵循ODC署名-相同方式共享社区规范（http://www.opendatacommons.org/norms/odc-by-sa/）；具体而言，虽然无法律强制要求，但我们恳请所有数据使用者在发表成果时，注明本数据集源自OpenfMRI项目以及美国国家科学基金会（National Science Foundation, NSF）资助项目OCI-1131441（R. Poldrack，项目负责人）。