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NodeOfRanvier

sc_neurocore_engine::neurons::misc

Struct NodeOfRanvier 

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pub struct NodeOfRanvier {
Show 16 fields
    pub v: f64,
    pub m: f64,
    pub h: f64,
    pub p: f64,
    pub s: f64,
    pub c_m: f64,
    pub g_nat: f64,
    pub g_nap: f64,
    pub g_ks: f64,
    pub g_l: f64,
    pub e_na: f64,
    pub e_k: f64,
    pub e_l: f64,
    pub dt: f64,
    pub sub_steps: usize,
    pub gain: f64,

}
Expand description

Node of Ranvier — McIntyre-Richardson-Grill 2002 model.

Gold-standard nodal model for mammalian myelinated axons. Includes the specific channel complement of nodes of Ranvier:

  • INaT (transient Na, Nav1.6): m³h gating, fast activation
  • INaP (persistent Na, Nav1.6): p³ gating, subthreshold amplification
  • IKs (slow K, Kv7/KCNQ): s gating, membrane stabilisation
  • IKf (fast K, Kv3.1-like): fast repolarisation (n⁴ HH-style, optional)
  • IL (leak)

The persistent Na current (INaP) is critical — it provides subthreshold amplification and lowers the effective firing threshold, a key feature of Nav1.6-rich nodes that distinguishes them from generic HH models.

C dV/dt = -(INaT + INaP + IKs + IL) + I_ext

Gating uses Boltzmann steady-state + time-constant formulation (not alpha/beta) following MRG convention.

McIntyre, Richardson & Grill, J Neurophysiol 87:995, 2002.

Fields§

§v: f64§m: f64§h: f64§p: f64§s: f64§c_m: f64§g_nat: f64§g_nap: f64§g_ks: f64§g_l: f64§e_na: f64§e_k: f64§e_l: f64§dt: f64§sub_steps: usize§gain: f64

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impl NodeOfRanvier

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pub fn new() -> Self

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fn boltz(v: f64, v_half: f64, k: f64) -> f64

Boltzmann steady-state: 1 / (1 + exp(-(V - V_half) / k))

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pub fn step(&mut self, current: f64) -> i32

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pub fn reset(&mut self)

Trait Implementations§

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impl Clone for NodeOfRanvier

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fn clone(&self) -> NodeOfRanvier

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for NodeOfRanvier

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for NodeOfRanvier

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fn default() -> Self

Returns the “default value” for a type. Read more

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fn borrow_mut(&mut self) -> &mut T

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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