diff --git a/src/04-modality-specific-files/02-magnetoencephalography.md b/src/04-modality-specific-files/02-magnetoencephalography.md index 8b03fbc5ce..669da045c3 100644 --- a/src/04-modality-specific-files/02-magnetoencephalography.md +++ b/src/04-modality-specific-files/02-magnetoencephalography.md @@ -100,27 +100,27 @@ Specific MEG fields MUST be present: SHOULD be present: -| Field name | Definition | -| -------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | -| MEGChannelCount | RECOMMENDED. Number of MEG channels (e.g. 275) | -| MEGREFChannelCount | RECOMMENDED. Number of MEG reference channels (e.g. 23). For systems without such channels (e.g. Neuromag Vectorview), `MEGREFChannelCount`=0 | -| EEGChannelCount | RECOMMENDED. Number of EEG channels recorded simultaneously (e.g. 21) | -| ECOGChannelCount | RECOMMENDED. Number of ECoG channels | -| SEEGChannelCount | RECOMMENDED. Number of SEEG channels | -| EOGChannelCount | RECOMMENDED. Number of EOG channels | -| ECGChannelCount | RECOMMENDED. Number of ECG channels | -| EMGChannelCount | RECOMMENDED. Number of EMG channels | -| MiscChannelCount | RECOMMENDED. Number of miscellaneous analog channels for auxiliary signals | -| TriggerChannelCount | RECOMMENDED. Number of channels for digital (TTL bit level) triggers | -| RecordingDuration | RECOMMENDED. Length of the recording in seconds (e.g. 3600) | -| RecordingType | RECOMMENDED. Defines whether the recording is `continuous` or `epoched`; this latter limited to time windows about events of interest (e.g., stimulus presentations, subject responses etc.) | -| EpochLength | RECOMMENDED. Duration of individual epochs in seconds (e.g. 1) in case of epoched data | -| ContinuousHeadLocalization | RECOMMENDED. Boolean (`true` or `false`) value indicating whether continuous head localisation was performed. | -| HeadCoilFrequency | RECOMMENDED. List of frequencies (in Hz) used by the head localisation coils (‘HLC’ in CTF systems, ‘HPI’ in Elekta, ‘COH’ in BTi/4D) that track the subject’s head position in the MEG helmet (e.g. `[293, 307, 314, 321]`) | -| MaxMovement | RECOMMENDED. Maximum head movement (in mm) detected during the recording, as measured by the head localisation coils (e.g., 4.8) | -| SubjectArtefactDescription | RECOMMENDED. Freeform description of the observed subject artefact and its possible cause (e.g. "Vagus Nerve Stimulator", "non-removable implant"). If this field is set to `n/a`, it will be interpreted as absence of major source of artifacts except cardiac and blinks. | -| AssociatedEmptyRoom | RECOMMENDED. Relative path in BIDS folder structure to empty-room file associated with the subject’s MEG recording. The path needs to use forward slashes instead of backward slashes (e.g. `sub-emptyroom/ses-/meg/sub-emptyroom_ses-_task-noise_run-_meg.ds`). | -| HardwareFilters | RECOMMENDED. [Object] of temporal hardware filters applied, or `"n/a"` if the data is not available. Each key:value pair in the JSON object is a name of the filter and an object in which its parameters are defined as key:value pairs. E.g., `{"Highpass RC filter": {"Half amplitude cutoff (Hz)": 0.0159, "Roll-off": "6dB/Octave"}}` | +| Field name | Definition | +| -------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | +| MEGChannelCount | RECOMMENDED. Number of MEG channels (e.g. 275) | +| MEGREFChannelCount | RECOMMENDED. Number of MEG reference channels (e.g. 23). For systems without such channels (e.g. Neuromag Vectorview), `MEGREFChannelCount`=0 | +| EEGChannelCount | RECOMMENDED. Number of EEG channels recorded simultaneously (e.g. 21) | +| ECOGChannelCount | RECOMMENDED. Number of ECoG channels | +| SEEGChannelCount | RECOMMENDED. Number of SEEG channels | +| EOGChannelCount | RECOMMENDED. Number of EOG channels | +| ECGChannelCount | RECOMMENDED. Number of ECG channels | +| EMGChannelCount | RECOMMENDED. Number of EMG channels | +| MiscChannelCount | RECOMMENDED. Number of miscellaneous analog channels for auxiliary signals | +| TriggerChannelCount | RECOMMENDED. Number of channels for digital (TTL bit level) triggers | +| RecordingDuration | RECOMMENDED. Length of the recording in seconds (e.g. 3600) | +| RecordingType | RECOMMENDED. Defines whether the recording is `continuous` or `epoched`; this latter limited to time windows about events of interest (e.g., stimulus presentations, subject responses etc.) | +| EpochLength | RECOMMENDED. Duration of individual epochs in seconds (e.g. 1) in case of epoched data | +| ContinuousHeadLocalization | RECOMMENDED. Boolean (`true` or `false`) value indicating whether continuous head localisation was performed. | +| HeadCoilFrequency | RECOMMENDED. List of frequencies (in Hz) used by the head localisation coils (‘HLC’ in CTF systems, ‘HPI’ in Elekta, ‘COH’ in BTi/4D) that track the subject’s head position in the MEG helmet (e.g. `[293, 307, 314, 321]`) | +| MaxMovement | RECOMMENDED. Maximum head movement (in mm) detected during the recording, as measured by the head localisation coils (e.g., 4.8) | +| SubjectArtefactDescription | RECOMMENDED. Freeform description of the observed subject artefact and its possible cause (e.g. "Vagus Nerve Stimulator", "non-removable implant"). If this field is set to `n/a`, it will be interpreted as absence of major source of artifacts except cardiac and blinks. | +| AssociatedEmptyRoom | RECOMMENDED. Relative path in BIDS folder structure to empty-room file associated with the subject’s MEG recording. The path needs to use forward slashes instead of backward slashes (e.g. `sub-emptyroom/ses-/meg/sub-emptyroom_ses-_task-noise_run-_meg.ds`). | +| HardwareFilters | RECOMMENDED. [Object][] of temporal hardware filters applied, or `"n/a"` if the data is not available. Each key:value pair in the JSON object is a name of the filter and an object in which its parameters are defined as key:value pairs. E.g., `{"Highpass RC filter": {"Half amplitude cutoff (Hz)": 0.0159, "Roll-off": "6dB/Octave"}}` | Specific EEG fields (if recorded with MEG) SHOULD be present: