diff --git a/models/LIFACnoise.py b/models/LIFACnoise.py
index 1195ff1..8a82e76 100644
--- a/models/LIFACnoise.py
+++ b/models/LIFACnoise.py
@@ -300,10 +300,10 @@ def simulate_fast(rectified_stimulus_array, total_time_s, parameters: np.ndarray
         noise = noise_strength * noise_value / np.sqrt(step_size)
 
         input_voltage[i] = input_voltage[i - 1] + (
-                    (-input_voltage[i - 1] + rectified_stimulus_array[i] + noise) / dend_tau) * step_size
+                    (-input_voltage[i - 1] + rectified_stimulus_array[i]) / dend_tau) * step_size
 
         output_voltage[i] = output_voltage[i - 1] + ((v_base - output_voltage[i - 1] + v_offset + (
-                    input_voltage[i] * input_scaling) - adaption[i - 1]) / mem_tau) * step_size
+                    input_voltage[i] * input_scaling) - adaption[i - 1] + noise) / mem_tau) * step_size
 
         adaption[i] = adaption[i - 1] + ((-adaption[i - 1]) / tau_a) * step_size