.. currentmodule:: brian

.. index::
   pair: example usage; NeuronGroup
   pair: example usage; run
   pair: example usage; Synapses
   pair: example usage; StateMonitor

.. _example-synapses_synapse_construction:

Example: synapse_construction (synapses)
========================================

An example of constructing synapses.

::

    
    from brian import *
    import time
    
    N=10
    
    P=NeuronGroup(N,model='dv/dt=1/(10*ms):1',threshold=1,reset=0)
    Q=NeuronGroup(N,model='v:1')
    S=Synapses(P,Q,model='w:1',pre='v+=w')
    
    S[:,:]='i==j'
    S.w='2*i'
    
    M=StateMonitor(Q,'v',record=True)
    
    run(40*ms)
    
    for i in range(N):
        plot(M.times/ms,M[i]+i*2,'k')
    show()