Models

livn ships with several built-in neuron models spanning different levels of biophysical detail. Each model implements the Model protocol and is compatible with one or more backends.

Model	Type	Backends	Description
RCSD	Two-compartment	brian2, NEURON, Diffrax	Booth-Rinzel-Kiehn motoneuron & Pinsky-Rinzel interneuron with calcium dynamics
CA1	Multi-compartment	NEURON	Morphologically detailed hippocampal pyramidal neurons
Izhikevich	Point neuron	brian2	Quadratic integrate-and-fire with recovery variable
LIF	Point neuron	brian2	Leaky integrate-and-fire
SLIF	Point neuron	Diffrax	Event-driven spiking LIF for differentiable simulation

Choosing a model

• For biophysically detailed simulations with the NEURON backend, use RCSD (the default) or CA1.
• For differentiable simulation with JAX/Diffrax, use RCSD or SLIF.
• For fast prototyping with brian2, use Izhikevich or LIF.