diff --git a/models/LIFAC.py b/models/LIFAC.py
index f9840e6..4a76379 100644
--- a/models/LIFAC.py
+++ b/models/LIFAC.py
@@ -60,35 +60,6 @@ class LIFACModel(AbstractModel):
         step_size = self.parameters["step_size"]
         return current_a + (step_size * (-current_a)) / self.parameters["tau_a"]
 
-    def set_parameters(self, params):
-        self._test_given_parameters(params)
-
-        for k in params.keys():
-            self.parameters[k] = params[k]
-
-        for i in range(len(self.KEYS)):
-            if self.KEYS[i] not in self.parameters.keys():
-                self.parameters[self.KEYS[i]] = self.VALUES[i]
-
-    def get_parameters(self):
-        return self.parameters
-
-    def set_variable(self, key, value):
-        if key not in self.KEYS:
-            raise ValueError("Given key is unknown!\n"
-                             "Please check spelling and refer to list LIFAC.KEYS.")
-        self.parameters[key] = value
-
-    def _set_default_parameters(self):
-        for i in range(len(self.KEYS)):
-            self.parameters[self.KEYS[i]] = self.VALUES[i]
-
-    def _test_given_parameters(self, params):
-        for k in params.keys():
-            if k not in self.KEYS:
-                err_msg = "Unknown key in the given parameters:" + str(k)
-                raise ValueError(err_msg)
-
     def min_stimulus_strength_to_spike(self):
         return self.parameters["threshold"] - self.parameters["v_base"]