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[FIX] make iEEG ToC more consistent with MEG and EEG (#191)
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* made the section headings and ToC consistent with meg and eeg
- removed the space-<xxx> from the filename in the section headings, it is still part of the actual specification

* small updated to phrasing, no conceptual changes

* Update 04-intracranial-electroencephalography.md
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robertoostenveld authored and sappelhoff committed Apr 8, 2019
1 parent cacd627 commit c4a7358
Showing 1 changed file with 33 additions and 32 deletions.
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Expand Up @@ -262,28 +262,28 @@ TR1 TRIG n/a n/a n/a good n/a
Restricted keyword list for field type in alphabetic order (shared with the MEG
and EEG modality; however, only types that are common in iEEG data are listed here):

| Keyword | Description |
| :------- | :---------------------------------------------------------------- |
| EEG | Electrode channel from electroencephalogram |
| ECOG | Electrode channel from electrocorticogram (intracranial) |
| SEEG | Electrode channel from stereo-electroencephalogram (intracranial) |
| DBS | Electrode channel from deep brain stimulation (intracranial) |
| VEOG | Vertical EOG (electrooculogram) |
| HEOG | Horizontal EOG |
| EOG | Generic EOG channel if HEOG or VEOG information not available |
| ECG | ElectroCardioGram (heart) |
| EMG | ElectroMyoGram (muscle) |
| TRIG | System Triggers |
| AUDIO | Audio signal |
| PD | Photodiode |
| EYEGAZE | Eye Tracker gaze |
| PUPIL | Eye Tracker pupil diameter |
| MISC | Miscellaneous |
| SYSCLOCK | System time showing elapsed time since trial started |
| ADC | Analog to Digital input |
| DAC | Digital to Analog output |
| REF | Reference channel |
| OTHER | Any other type of channel |
| Keyword | Description |
| :------- | :--------------------------------------------------------------------- |
| EEG | Electrode channel from electroencephalogram |
| ECOG | Electrode channel from electrocorticogram (intracranial) |
| SEEG | Electrode channel from stereo-electroencephalogram (intracranial) |
| DBS | Electrode channel from deep brain stimulation electrode (intracranial) |
| VEOG | Vertical EOG (electrooculogram) |
| HEOG | Horizontal EOG |
| EOG | Generic EOG channel if HEOG or VEOG information not available |
| ECG | ElectroCardioGram (heart) |
| EMG | ElectroMyoGram (muscle) |
| TRIG | System Triggers |
| AUDIO | Audio signal |
| PD | Photodiode |
| EYEGAZE | Eye Tracker gaze |
| PUPIL | Eye Tracker pupil diameter |
| MISC | Miscellaneous |
| SYSCLOCK | System time showing elapsed time since trial started |
| ADC | Analog to Digital input |
| DAC | Digital to Analog output |
| REF | Reference channel |
| OTHER | Any other type of channel |

The free text field for the channel description can for example be specified as
intracranial, stimulus, response, vertical EOG, horizontal EOG, skin
Expand All @@ -303,12 +303,13 @@ sub-<label>/
File that gives the location, size and other properties of iEEG electrodes. Note
that coordinates are expected in cartesian coordinates according to the
`iEEGCoordinateSystem` and `iEEGCoordinateSystemUnits` fields in
`*_coordsystem.json`. **If an `*_electrodes.tsv` file is specified, a
`*_coordsystem.json` file MUST be specified as well**.
`*_coordsystem.json`. If an `*_electrodes.tsv` file is specified, a
`*_coordsystem.json` file MUST be specified as well.

The optional space label (`*[_space-<label>]_electrodes.tsv`) can be used to
indicate the way in which electrode positions are interpreted. Potential labels
need to be taken from the list in [Appendix VIII](../99-appendices/08-coordinate-systems.md)
indicate the way in which electrode positions are interpreted. The space label
needs to be taken from the list in
[Appendix VIII](../99-appendices/08-coordinate-systems.md)

For examples:

Expand Down Expand Up @@ -351,11 +352,11 @@ SHOULD be present:

MAY be present:

| Column name | Definition |
| :---------- | :------------------------------------------------------------------------------------------------------------------------------------------------ |
| type | OPTIONAL. Optional type of the electrode, e.g., cup, ring, clip-on, wire, needle, ... |
| impedance | OPTIONAL. Impedance of the electrode in kOhm. |
| dimension | OPTIONAL. Size of the grid/strip/probe that this electrode belongs to. Must be of form `[AxB]` with the smallest dimension first (e.g., `[1x8]`). |
| Column name | Definition |
| :---------- | :-------------------------------------------------------------------------------------------------------------------------------------------------------- |
| type | OPTIONAL. Optional type of the electrode, e.g., cup, ring, clip-on, wire, needle, ... |
| impedance | OPTIONAL. Impedance of the electrode in kOhm. |
| dimension | OPTIONAL. Size of the group (grid/strip/probe) that this electrode belongs to. Must be of form `[AxB]` with the smallest dimension first (e.g., `[1x8]`). |

Example:

Expand Down Expand Up @@ -483,7 +484,7 @@ EEG technician and provided to the epileptologists (e.g., see Burneo JG et al.
2014 [https://doi.org/10.1016/j.clineuro.2014.03.020](https://doi.org/10.1016/j.clineuro.2014.03.020)).

```Text
sub-0002_ses-001_acq-render_photo.jpg (for volume rendering)
sub-0002_ses-01_acq-render_photo.jpg
```

![volume rendering of the cortical surface](images/ieeg_electrodes2.png "volume rendering of the cortical surface")
Expand Down

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