This repository contains fMRI (BOLD) duration statistics extracted from the OpenNeuro datasets.

Note:

• If a csv file for a dataset is not present, it means that the dataset could not be processed (likely BIDSLayout error).
• If a csv file for a dataset is present, but contains no data rows (only header), it was processed but no _bold.nii[.gz] files were found (or none could be read).

Polars schema for reading:

pl.Schema(
    {
        "dataset": pl.String,
        "gitsha": pl.String,
        "timestamp": pl.Int64,
        "file": pl.String,
        "nvol": pl.Int64,
        "tr": pl.Float64,
    }
)

Gitsha and timestamp refer to the latest commit in the dataset and should be the same for all files.

See https://hub.psychoinformatics.de/msz/mri-hours for code used for generation and example processing script.