diff --git a/CellData.py b/CellData.py
index 6538714..dbb8bd1 100644
--- a/CellData.py
+++ b/CellData.py
@@ -100,14 +100,14 @@ class CellData:
 
         return contrast
 
-    def get_mean_isi_frequencies(self):
+    def get_mean_fi_curve_isi_frequencies(self):
         if self.mean_isi_frequencies is None:
             self.time_axes, self.mean_isi_frequencies = hf.all_calculate_mean_isi_frequency_traces(
                 self.get_fi_spiketimes(), self.get_sampling_interval())
 
         return self.mean_isi_frequencies
 
-    def get_time_axes_mean_frequencies(self):
+    def get_time_axes_fi_curve_mean_frequencies(self):
         if self.time_axes is None:
             self.time_axes, self.mean_isi_frequencies = hf.all_calculate_mean_isi_frequency_traces(
                 self.get_fi_spiketimes(), self.get_sampling_interval())
@@ -116,7 +116,7 @@ class CellData:
 
     def get_base_frequency(self):
         base_freqs = []
-        for freq in self.get_mean_isi_frequencies():
+        for freq in self.get_mean_fi_curve_isi_frequencies():
             delay = self.get_delay()
             sampling_interval = self.get_sampling_interval()
             if delay < 0.1:
diff --git a/introduction/old_helper_functions.py b/introduction/old_helper_functions.py
index cb8ccf5..8688e47 100644
--- a/introduction/old_helper_functions.py
+++ b/introduction/old_helper_functions.py
@@ -84,8 +84,8 @@ def crappy_smoothing(signal:list, window_size:int = 5) -> list:
 
 def plot_frequency_curve(cell_data, save_path: str = None, indices: list = None):
     contrast = cell_data.get_fi_contrasts()
-    time_axes = cell_data.get_time_axes_mean_frequencies()
-    mean_freqs = cell_data.get_mean_isi_frequencies()
+    time_axes = cell_data.get_time_axes_fi_curve_mean_frequencies()
+    mean_freqs = cell_data.get_mean_fi_curve_isi_frequencies()
 
     if indices is None:
         indices = np.arange(len(contrast))