: The .7z extension indicates that the dataset is compressed using the 7-Zip format to handle the massive file sizes typical of high-resolution neuroimaging. Why you might see "Proper":
(or the corresponding journal version published in Scientific Data or similar venues depending on the version). Key Details of the Paper: MMBB.7z
In the context of dataset sharing (especially on platforms like Hugging Face, Academic Torrents, or OpenNeuro), "proper" often distinguishes the of the data from preliminary or "leaked" versions. : The paper describes the acquisition, preprocessing, and
: The paper describes the acquisition, preprocessing, and validation of the brain imaging data to ensure it is "properly" formatted for machine learning and neuroscience research. : The paper describes the acquisition
: It contains multi-modal brain imaging data, typically including MRI (structural, functional, diffusion), and sometimes clinical or demographic metadata.