diff --git a/notebooks/invivo_python.ipynb b/notebooks/invivo_python.ipynb
index 7d4ca4c..2063305 100644
--- a/notebooks/invivo_python.ipynb
+++ b/notebooks/invivo_python.ipynb
@@ -116,11 +116,11 @@
     "## Visualize interactive KDE ridgelines \n",
     "\n",
     "* In the manuscript, `invivo3` was selected for visualization. You can select `invivo1` and `invivo2` as well. \n",
-    "* In the `WM`, sampN was `37000`\n",
-    "* In the `GM`, sampN was `20000`\n",
-    "* For metric `T1` `lowlim: 0` and `uplim: 2.5`  (WM)\n",
-    "* For metric `MTR` `lowlim: 35` and `uplim: 70` (WM)\n",
-    "* For metric `MTsat` `lowlim: 1` and `uplim: 8` (WM)"
+    "* In the `wm`, sampN was `37000`\n",
+    "* In the `gm`, sampN was `20000`\n",
+    "* For metric `T1` `lowlim: 0` and `uplim: 2.5`  (wm)\n",
+    "* For metric `MTR` `lowlim: 35` and `uplim: 70` (wm)\n",
+    "* For metric `MTsat` `lowlim: 1` and `uplim: 8` (wm)"
    ]
   },
   {
@@ -129,10 +129,10 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "fig = plot_ridgelines('invivo3',sessions,'T1','WM',colors,sides,37000,0.5,2)\n",
-    "#plot_ridgelines('invivo3',sessions,'MTR','WM',colors,sides,37000,35,70)\n",
-    "#plot_ridgelines('invivo3',sessions,'MTsat','WM',colors,sides,37000,1,8)\n",
-    "#plot_ridgelines('invivo3',sessions,'T1','GM',colors,sides,20000,0.5,2)\n",
+    "fig = plot_ridgelines('invivo3',sessions,'T1','wm',colors,sides,37000,0.5,2)\n",
+    "#plot_ridgelines('invivo3',sessions,'MTR','wm',colors,sides,37000,35,70)\n",
+    "#plot_ridgelines('invivo3',sessions,'MTsat','wm',colors,sides,37000,1,8)\n",
+    "#plot_ridgelines('invivo3',sessions,'T1','gm',colors,sides,20000,0.5,2)\n",
     "\n",
     "plot(fig, filename = 'fig.html')\n",
     "display(HTML('fig.html'))"