Sometimes video files contain subtitles or metadata that name the study.
The prefix is frequently used in neuroimaging or neuroscience datasets (e.g., "Natural Scenes" datasets). nsxo_27_45min.mp4
If I know the visual content (e.g., a person talking, a microscope slide, a computer simulation), I can find the specific study or researcher it belongs to. Sometimes video files contain subtitles or metadata that
Look for papers related to the Natural Scenes Dataset (NSD) or specific fMRI study "27." a person talking