diff --git a/src/spikeinterface/extractors/neoextractors/intan.py b/src/spikeinterface/extractors/neoextractors/intan.py
index 9d4db3103c..50fda79123 100644
--- a/src/spikeinterface/extractors/neoextractors/intan.py
+++ b/src/spikeinterface/extractors/neoextractors/intan.py
@@ -27,8 +27,8 @@ class IntanRecordingExtractor(NeoBaseRecordingExtractor):
         If True, data that violates integrity assumptions will be loaded. At the moment the only integrity
         check we perform is that timestamps are continuous. Setting this to True will ignore this check and set
         the attribute `discontinuous_timestamps` to True in the underlying neo object.
-    use_names_as_ids : bool or None, default: None
-        If True, use channel names as IDs. If None, use default IDs.
+    use_names_as_ids : bool, default: False
+        If True, use channel names as IDs. If False, use default IDs inherited from neo.
     """
 
     mode = "file"
diff --git a/src/spikeinterface/extractors/toy_example.py b/src/spikeinterface/extractors/toy_example.py
index 2f007cca88..55b787f3ed 100644
--- a/src/spikeinterface/extractors/toy_example.py
+++ b/src/spikeinterface/extractors/toy_example.py
@@ -62,13 +62,13 @@ def toy_example(
     seed : int or None, default: None
         Seed for random initialization.
     upsample_factor : None or int, default: None
-        A upsampling factor used only when templates are not provided.
+        An upsampling factor, used only when templates are not provided.
     num_columns : int, default:  1
         Number of columns in probe.
     average_peak_amplitude : float, default: -100
-        Average peak amplitude of generated templates
+        Average peak amplitude of generated templates.
     contact_spacing_um : float, default: 40.0
-        Spacing between probe contacts.
+        Spacing between probe contacts in micrometers.
 
     Returns
     -------
diff --git a/src/spikeinterface/preprocessing/filter.py b/src/spikeinterface/preprocessing/filter.py
index d18227ca83..93462ac5d8 100644
--- a/src/spikeinterface/preprocessing/filter.py
+++ b/src/spikeinterface/preprocessing/filter.py
@@ -11,7 +11,9 @@
 _common_filter_docs = """**filter_kwargs : dict
         Certain keyword arguments for `scipy.signal` filters:
             filter_order : order
-                The order of the filter
+                The order of the filter. Note as filtering is applied with scipy's
+                `filtfilt` functions (i.e. acausal, zero-phase) the effective
+                order will be double the `filter_order`.
             filter_mode :  "sos" | "ba", default: "sos"
                 Filter form of the filter coefficients:
                 - second-order sections ("sos")