Behavioral and ROI-level fMRI Data from the Balloon Analogue Risk Task (BART)

This dataset contains behavioral and fMRI data collected during a Balloon Analogue Risk Task (BART), a widely used paradigm to assess risk-taking behavior.
The behavioral data include trial-by-trial measures such as reward, pump count, explosion, and reaction time (RT), recorded from participants while performing the BART inside the scanner.
The fMRI data have been preprocessed and reduced to ROI-level signals. Specifically, we extracted the average BOLD signal time series from 200 predefined brain regions of interest (ROIs) using a standard parcellation scheme (http://neurovault.org/images/39711). These ROI features are provided in .csv format, with each file corresponding to one participant. Each row represents a time point, and each column represents an ROI.

Contents:

/behavioral/: Trial-level behavioral data in CSV format (one file per participant).

/fmri_roi/: Preprocessed fMRI data, extracted as ROI-level time series in CSV format (one file per participant).
Participants:
The dataset includes data from N =155 healthy participants, recruited from Southwest University, China.
Usage Notes:
This dataset is intended for use in research on risk-taking, decision-making, and neural correlates of behavior. Users are encouraged to cite this dataset using the provided DOI.

本数据集包含气球模拟风险任务（Balloon Analogue Risk Task, BART）过程中采集的行为学与功能磁共振成像（fMRI）数据，该任务是评估风险倾向行为的通用经典范式。
行为学数据包含逐试次测量指标，具体包括奖励金额、泵压次数、气球爆炸状态以及反应时（reaction time, RT），数据采集自扫描仪内完成BART任务的被试。
功能磁共振成像数据已完成预处理并降维至感兴趣脑区（region of interest, ROI）信号层面。具体而言，我们采用标准脑分区方案（http://neurovault.org/images/39711），从200个预先定义的感兴趣脑区中提取了平均血氧水平依赖（blood oxygen level-dependent, BOLD）信号时间序列。上述ROI特征以逗号分隔值（comma-separated values, CSV）格式存储，每个文件对应一名被试，其中每行代表一个时间点，每列代表一个感兴趣脑区。

数据集内容：
/behavioral/：存储逐试次行为学数据的CSV格式文件，每名被试对应一个文件。
/fmri_roi/：预处理后的功能磁共振成像数据，以ROI层面时间序列的CSV格式存储，每名被试对应一个文件。

被试信息：本数据集包含来自中国西南大学招募的155名健康被试的数据（N=155）。

使用说明：本数据集旨在服务于风险行为、决策制定以及行为神经关联机制相关研究。鼓励使用者依据提供的数字对象唯一标识符（DOI）引用本数据集。