Below are the abstract, introduction, and conclusion of a computer science research paper. Please summarize the main contribution of the work in a single sentence. Your response should include the summary and no additional text.

Paper text:

To communicate, to ground hypotheses, to analyse data, neuroscientists often refer to divisions of the brain.
Here we consider atlases used to parcellate the brain when studying brain function.
We discuss the meaning and the validity of these parcellations, from a conceptual point of view as well as by running various analytical tasks on popular functional brain parcellations.
All functional brain parcellations are wrong, but some are useful