[MISC] minor wording and consistency improvements for channels.tsv in EEG, MEG, iEEG

src/04-modality-specific-files/02-magnetoencephalography.md

@@ -218,14 +218,13 @@ Date time information MUST be expressed as indicated in [Units](../02-common-pri
 
 {{ MACROS___make_filename_template(datatypes=["meg"], suffixes=["channels"]) }}
 
-This file is RECOMMENDED as it provides easily searchable information across
-BIDS datasets for example, general curation, response to queries or batch
-analysis.
-To avoid confusion, the channels SHOULD be listed in the order they
-appear in the MEG data file.
-Missing values MUST be indicated with `n/a`.
-
-The columns of the Channels description table stored in `*_channels.tsv` are:
+This file is RECOMMENDED as it provides easily searchable information across BIDS datasets.
+For example for general curation, response to queries, or for batch analysis.
+To avoid confusion, the channels SHOULD be listed in the order they appear in the MEG data file.
+Any number of additional columns MAY be added to provide additional information about the channels.
+Missing values MUST be indicated with `"n/a"`.
+
+The columns of the channels description table stored in `*_channels.tsv` are:
 
 MUST be present **in this specific order**:
 

src/04-modality-specific-files/03-electroencephalography.md

@@ -184,23 +184,21 @@ Date time information MUST be expressed as indicated in [Units](../02-common-pri
 
 {{ MACROS___make_filename_template(datatypes=["eeg"], suffixes=["channels"]) }}
 
-This file is RECOMMENDED as it provides easily searchable information across
-BIDS datasets for example, general curation, response to queries or batch
-analysis.
-To avoid confusion, the channels SHOULD be listed in the order they
-appear in the EEG data file.
-Any number of additional columns may be added to provide additional information
-about the channels.
-
-Note that electrode positions SHOULD NOT be added to this file, but to [`*_electrodes.tsv`](./03-electroencephalography.md#electrodes-description-_electrodestsv).
+This file is RECOMMENDED as it provides easily searchable information across BIDS datasets.
+For example for general curation, response to queries, or for batch analysis.
+To avoid confusion, the channels SHOULD be listed in the order they appear in the EEG data file.
+Any number of additional columns MAY be added to provide additional information about the channels.
+
+Note that electrode positions SHOULD NOT be added to this file, but to
+[`*_electrodes.tsv`](./03-electroencephalography.md#electrodes-description-_electrodestsv).
 Furthermore, the entries in `*_electrodes.tsv` and `*_channels.tsv` do not have to match exactly,
 as for example in the case of recording a single `EOG` channel from a bipolar referencing scheme
 of two electrodes, or a data channel originating from an auxiliary, non-electrode device.
 That is, in most cases `*_electrodes.tsv` will have more entries than `*_channels.tsv`.
 See the examples for `*_channels.tsv` below, and for `*_electrodes.tsv` in
 ["Electrodes description"](./03-electroencephalography.md#electrodes-description-_electrodestsv).
 
-The columns of the Channels description table stored in `*_channels.tsv` are:
+The columns of the channels description table stored in `*_channels.tsv` are:
 
 MUST be present **in this specific order**:
 

src/04-modality-specific-files/04-intracranial-electroencephalography.md

@@ -204,21 +204,17 @@ Date time information MUST be expressed as indicated in [Units](../02-common-pri
 
 {{ MACROS___make_filename_template(datatypes=["ieeg"], suffixes=["channels"]) }}
 
-A channel represents one time series recorded with the recording system (for
-example, there can be a bipolar channel, recorded from two electrodes or contact
-points on the tissue).
+A channel represents one time series recorded with the recording system
+(for example, there can be a bipolar channel, recorded from two electrodes or contact points on the tissue).
 Although this information can often be extracted from the iEEG recording,
-listing it in a simple `.tsv` document makes it easy to browse or search (for example,
-searching for recordings with a sampling frequency of >=1000 Hz).
-Hence, the channels.tsv is RECOMMENDED.
-Channels SHOULD appear in the table in the same order they do in the iEEG data
-file.
-Any number of additional columns may be provided to provide additional
-information about the channels.
-Note that electrode positions SHOULD NOT be added to this file but to
-`*_electrodes.tsv`.
-
-The columns of the Channels description table stored in `*_channels.tsv` are:
+listing it in a simple `.tsv` document makes it easy to browse or search
+(for example, searching for recordings with a sampling frequency of >=1000 Hz).
+Hence, the `channels.tsv` file is RECOMMENDED.
+Channels SHOULD appear in the table in the same order they do in the iEEG data file.
+Any number of additional columns MAY be provided to provide additional information about the channels.
+Note that electrode positions SHOULD NOT be added to this file but to `*_electrodes.tsv`.
+
+The columns of the channels description table stored in `*_channels.tsv` are:
 
 MUST be present **in this specific order**: