Glutamate and Dysconnection in the Salience Network: Neurochemical, Effective-connectivity, and Computational Evidence in Schizophrenia

The group folder comprises all competing PEBs and a demo script. After saving this folder in the SPM directory in MATLAB, the interested reader can reproduce the Bayesian model comparison procedure by running the relevant script. Furthermore, glutamate data and parameter estimates of sensory PE and prior beliefs can be extracted from any PEB model comprising the relevant regressor. The subjects folder comprises all subjects’ dynamic causal models (including the fMRI timeseries for the relevant regions of interest). The excel file comprises the four conditions of the Stroop task performed by the subjects.本分组文件夹包含所有待比较的参数经验贝叶斯（Parametric Empirical Bayes，PEB）模型与一份演示脚本。将此文件夹保存至MATLAB中的SPM（Statistical Parametric Mapping）目录后，感兴趣的研究者可通过运行对应脚本复现贝叶斯模型比较流程。此外，从包含相关回归变量的任意PEB模型中，均可提取谷氨酸数据，以及感觉预测误差（sensory Prediction Error，PE）与先验信念的参数估计值。受试者文件夹包含所有受试者的动态因果模型（Dynamic Causal Models，DCM），其中涵盖对应感兴趣脑区（Regions of Interest，ROI）的功能性磁共振成像（functional Magnetic Resonance Imaging，fMRI）时间序列数据。该Excel文件包含受试者完成斯特鲁普任务（Stroop Task）的四种实验条件数据。