netcon.inc is a general summed synapse mechanism based on  
 
Lytton WW. Optimizing synaptic conductance calculation for network simulations 
Neural Computation, 8:501--510, 1996.   
 
eg 
COMMENT 
USAGE: for most receptors 
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    NEURON { 
      POINT_PROCESS NAME 
    } 
 
    PARAMETER { 
      Cdur	= 1.08	(ms)		: transmitter duration (rising phase) 
      Alpha	= 1	(/ms mM)	: forward (binding) rate 
      Beta	= 0.02	(/ms)		: backward (unbinding) rate 
      Erev	= -80	(mV)		: reversal potential 
    } 
     
    INCLUDE "netcon.inc" 
 *****************************************************************************