neuroimaging

This term is primarily used within scientific, medical, and academic registers. It serves as an umbrella term encompassing various specific technologies such as fMRI, PET scans, and CT scans, shifting the focus from the specific machine used to the broader process of visualizing neural activity.

As a technical mass noun, it describes a field of study or a methodology. It is rarely used in the plural because it refers to the general practice or the conceptual application of imaging technology rather than individual image files, which would instead be referred to as scans or images.