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pull example descriptions under example subheadings
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sappelhoff committed Jan 12, 2024
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Expand Up @@ -504,25 +504,24 @@ has to be updated, then for MEG it could be considered to be a new session.

Empty-room MEG recordings capture the environmental and recording system's noise.

It is RECOMMENDED to explicitly specify which empty-room recording should be used with which experimental run(s) or session(s). This can be done via the [`AssociatedEmptyRoom`](../glossary.md#associatedemptyroom-metadata) field in the `*_meg.json` sidecar files.
It is RECOMMENDED to explicitly specify which empty-room recording should be used with which experimental run(s) or session(s).
This can be done via the [`AssociatedEmptyRoom`](../glossary.md#associatedemptyroom-metadata) field in the `*_meg.json` sidecar files.

Empty-room recordings may be collected once per day, where a single empty-room recording may be shared between multiple subjects and/or sessions (see [Example 1](#example-1)).
Empty-room recordings can also be collected for each individual experimental session (see [Example 2](#example-2)).

In the case of empty-room recordings being associated with multiple subjects and/or sessions ([Example 1](#example-1)), it is RECOMMENDED to store the empty-room recording inside a subject directory named `sub-emptyroom`.
If a [`session-<label>`](../appendices/entities.md#ses) entity is present, its label SHOULD be the date of the empty-room recording in the format `YYYYMMDD`, that is `ses-YYYYMMDD`.
The `scans.tsv` file containing the date and time of the acquisition SHOULD also be included.
The rationale is that this naming scheme will allow users to easily retrieve the empty-room recording that best matches a particular experimental session, based on date and time of the recording.
It should be possible to query empty-room recordings just like usual subject recordings, hence all metadata sidecar files (such as the `channels.tsv`) file SHOULD be present as well.

In the case of empty-room recordings being collected for the individual experimental session ([Example 2](#example-2)), it is RECOMMENDED to store the empty-room recording along with that subject and session.

Empty-room recordings may also be collected for each individual experimental session (see [Example 2](#example-2)).
In either case, the label for the [`task-<label>`](../appendices/entities.md#task) entity in the empty-room recording SHOULD be set to `noise`.

### Example 1

One empty-room recording per day, applying to all subjects for that day.

In the case of empty-room recordings being associated with multiple subjects and/or sessions,
it is RECOMMENDED to store the empty-room recording inside a subject directory named `sub-emptyroom`.
If a [`session-<label>`](../appendices/entities.md#ses) entity is present, its label SHOULD be the date of the empty-room recording in the format `YYYYMMDD`, that is `ses-YYYYMMDD`.
The `scans.tsv` file containing the date and time of the acquisition SHOULD also be included.
The rationale is that this naming scheme will allow users to easily retrieve the empty-room recording that best matches a particular experimental session, based on date and time of the recording.
It should be possible to query empty-room recordings just like usual subject recordings, hence all metadata sidecar files (such as the `channels.tsv`) file SHOULD be present as well.

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One empty-room recording per each participant's session, stored within the session directory.

In the case of empty-room recordings being collected for the individual experimental session,
it is RECOMMENDED to store the empty-room recording along with that subject and session.

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A guide for using macros can be found at
https://github.com/bids-standard/bids-specification/blob/master/macros_doc.md
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