drammock · Oct 19, 2026 · Oct 14, 2026 · Oct 14, 2026 · Oct 15, 2026
@@ -0,0 +1 @@
+Fix bug with :func:`mne.preprocessing.annotate_muscle_zscore` where channels in ``raw.info["bads"]`` were included in the computation of the muscle artifact scores, by `Hamza Abdelhedi`_.
diff --git a/mne/preprocessing/artifact_detection.py b/mne/preprocessing/artifact_detection.py
@@ -117,7 +117,7 @@ def annotate_muscle_zscore(
         logger.info("Using %s sensors for muscle artifact detection", ch_type)
     else:
         _check_option("ch_type", ch_type, ["mag", "grad", "eeg"])
-    raw_copy.pick(ch_type)
+    raw_copy.pick(ch_type, exclude="bads")
 
     raw_copy.filter(
         filter_freq[0],

diff --git a/mne/preprocessing/tests/test_artifact_detection.py b/mne/preprocessing/tests/test_artifact_detection.py
@@ -174,6 +174,12 @@ def test_muscle_annotation(meas_date, events):
     onset = onset.astype(int)
     assert_array_equal(scores[onset].astype(int), np.array([23, 10]))
     assert annot_muscle.duration.size == 2
+    # Bad channels are excluded
+    raw.info["bads"] = ["MEG0111"]
+    _, scores_bads = annotate_muscle_zscore(raw, ch_type="mag", threshold=10)
+    raw_drop = raw.copy().drop_channels(raw.info["bads"])
+    _, scores_drop = annotate_muscle_zscore(raw_drop, ch_type="mag", threshold=10)
+    assert_allclose(scores_bads, scores_drop)
     raw.set_annotations(annot_muscle)
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Fix bug with :func:`mne.preprocessing.annotate_muscle_zscore` where channels in ``raw.info["bads"]`` were included in the computation of the muscle artifact scores, by `Hamza Abdelhedi`_.