CurrentInjection

CurrentInjection(pre, post, target, name=None, copied=False, net_id=0)

Inject current from a rate-coded population into a spiking population.

The pre-synaptic population must be be rate-coded, the post-synaptic one must be spiking, both must have the same size and no plasticity is allowed.

For each post-synaptic neuron, the current g_target (e.g. g_excor g_inh) will be set at each time step to the firing rate r of the pre-synaptic neuron with the same rank.

The projection must be connected with connect_current(), which takes no parameter and does not accept delays. It is equivalent to one_to_one(weights=1.0).

Example:

inp = net.create(100, ann.Neuron(equations="r = 5*sin(t/1000)"))
pop = net.create(100, ann.Izhikevich)

proj = net.connect(ann.CurrentInjection(inp, pop, 'exc'))
proj.connect_current()

Parameters

Name	Type	Description	Default
pre	Population	pre-synaptic population.	required
post	Population	post-synaptic population.	required
target	str	type of the connection.	required
name	str	optional name.	None