diff --git a/spm_funcs.py b/spm_funcs.py
index 450c1ab..d4b3ac8 100644
--- a/spm_funcs.py
+++ b/spm_funcs.py
@@ -55,6 +55,13 @@ def get_spm_globals(fname):
         SPM global metric for each 3D volume in the 4D image.
     """
     # +++your code here+++
+    img = nib.load(fname)
+    data = img.get_fdata()
+    spm_vals = []
+    for i in range(data.shape[-1]):
+        vol = data[..., i]
+        spm_vals.append(spm_global(vol))
+    return spm_vals
     # return