minor edit to evstdp syn

Author: ago109

ngclearn/components/synapses/hebbian/eventSTDPSynapse.py

@@ -56,7 +56,7 @@ class EventSTDPSynapse(DenseSynapse): # event-driven, post-synaptic STDP
 
     # Define Functions
     def __init__(self, name, shape, eta, lmbda=0.01, A_plus=1., A_minus=1.,
-                 presyn_win_len=1., w_bound=1., weight_init=None, resist_scale=1.,
+                 presyn_win_len=2., w_bound=1., weight_init=None, resist_scale=1.,
                  p_conn=1., batch_size=1, **kwargs):
         super().__init__(name, shape, weight_init, None, resist_scale, p_conn,
                          batch_size=batch_size, **kwargs)