[SCHEMA] electrodes.tsv is RECOMMENDED if EEGChannelCount > 0

bids-standard · Jul 14, 2023 · befd54c · befd54c
1 parent b5a222a
commit befd54c
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/src/schema/rules/checks/meg.yaml b/src/schema/rules/checks/meg.yaml
@@ -0,0 +1,14 @@
+# Rules for MEG data that cannot be defined in tables
+---
+MEGElectrodesRecommended:
+  issue:
+    code: MEG_EEG_ELECTRODES_RECOMMENDED
+    message: |
+      A nonzero EEGChannelCount for MEG datasets indicates the presence of EEG
+      channels. A corresponding `electrodes.tsv` file should be be added.
+    level: warning
+  selectors:
+    - suffix == "meg"
+    - sidecar.EEGChannelCount > 0
+  checks:
+    - type(associations.electrodes) != 'null'