I got a request of Karin Jensen, who wants to handle survey data in BIDS next to the MRI data.

I directed her to the Participants file section of our specification (see here), where we talk about the phenotype directory.

Unfortunately, the paragraph is not accompanied by an example, so there are several open questions such as:

1. where do I place the /phenotype directory?
2. how do I name my files in the /phenotype directory?

Does somebody have an example at hand to share and discuss? It would also be great to update the specification with an example (a constructed, simplified one).