CSD: Caption Scene Dataset

Each folder contains the raw image files along with corresponding JSON metadata.Preprocessed time-series data The preprocessed time-series data is stored in /derivatives/ppdata/sub-xx/ and include the following components:anat: high signal-to-noise ratio T1 structural image obtained by averaging multiple scans; design: experimental design file for each CSD run, with elements represented as N or 0. Here, N indicates the stimulus index (1-indexed) and marks the onset of image presentation, while 0 denotes other time points; func: preprocessed functional time-series data aligned to the individual’s native volume spaceThe corresponding stimulus index file can be found at /stimuli/COCO_CN/Stimulus_index.tsv.Preprocessed beta data Preprocessed Beta data are stored in /derivatives/pp_betas/sub-xx/.

These data are derived from the preprocessed time-series data, projected onto each participant’s native surface space, and calculated using GLMSingle. The data are organized separately for each run and hemisphere, with lh representing the left hemisphere and rh representing the right hemisphere. Each H5 file contains two datasets: beta (Beta weights computed by GLMSingle); beta_zscore (z-score standardized beta values within the same session)Freesurfer reconstruction results Freesurfer reconstruction results are stored in /derivatives/freesurfer_results/sub-xx/. Pycortex database Pycortex database results are stored in /derivatives/pycortex_db/ and can be used for flattened visualizations of individual brain surfaces.StimuliExperimental stimuli are stored in the /stimuli/ directory, including:COCO_CN: stimulus images used in the experiment, corresponding text descriptions, English translations, and stimulus sequence information; CSD: scripts recording stimulus presentation, encoded in GBK