Interactive effects of dopamine transporter genotype and aging on resting-state functional networks

The resting-state fMRI data are fully preprocessed and arranged in 4D nifti files. Preprocessing was carried out using SPM 12 (slice-time correction, spatial unwarping, normalizing to MNI space, smoothing with an 8 mm Gaussian kernel) and FSL's ICA-AROMA (additional head-motion correction). Furthermore, the resting-state fMRI data were bandpass filtered (band: 0.009 - 0.08 Hz) and mean WM and CSF signals were regressed out. Behavioral data contain information on age, sex and the individual scores on the Raven's matrices test, the Stroop test (variables: accuracy on incongruent color and reaction time of incongruent color), the spot-a-word test and the identical pictures test.

本数据集的静息态功能磁共振成像（resting-state fMRI）数据已完成全流程预处理，并以4维NIfTI文件格式存储。预处理流程采用SPM 12完成，涵盖切片时间校正、空间去畸变、标准化至MNI空间以及使用8mm高斯核进行平滑；同时结合FSL的ICA-AROMA工具完成额外的头动校正。此外，还对静息态功能磁共振成像数据进行了0.009~0.08Hz通带范围的带通滤波，并将白质（WM）与脑脊液（CSF）的平均信号进行回归剔除。行为学数据涵盖受试者的年龄、性别信息，以及瑞文推理测验（Raven's matrices test）、斯特鲁普测验（Stroop test，变量包括色冲突试次正确率与色冲突试次反应时）、单词识别测验（spot-a-word test）与相同图片测验（identical pictures test）的个体得分。