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53 lines
1.6 KiB
53 lines
1.6 KiB
2 years ago
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from neuron import h
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from .terminal import Terminal
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class SimpleTerminal(Terminal):
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"""
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Simple terminal using netcon.
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"""
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def __init__(self, pre_sec, target_cell, spike_source=None, loc=0.5):
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"""
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Parameters
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----------
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pre_sec : :obj: `NEURON Section`
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The presynaptic section that is monitored for spikes. The voltage
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in this section is monitored to trigger the postsynaptic conductance
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as the spike source
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spike_source : :obj: `NEURON Section`
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Overrides the pre_sec as the spike source for this terminal.
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terminal : :obj: `Synapse Terminal`
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The presynaptic Terminal instance
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loc : float, default=0.5
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Position on the postsynaptic section to insert the mechanism, from [0..1].
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"""
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Terminal.__init__(self, pre_sec)
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if spike_source is None:
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spike_source = pre_sec(loc)._ref_v
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self.spike_source = spike_source
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self.pre_sec = pre_sec
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def connect(self, post, weight):
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"""
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Connect this terminal to a postsynaptic cell section
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The synaptic delay is 0.5 msec, and the presynaptic
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action potential threshold is -20 mV.
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Parameters
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----------
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post : :obj: `NEURON Section`
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weight : float
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Strength of the connection
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"""
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thresh = -20
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delay = 0.5
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self.netcon = h.NetCon(
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self.spike_source, post, thresh, delay, weight, sec=self.pre_sec
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)
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self.netcon.weight[0] = weight
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