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. 2014 Mar 13;9(3):e90480. doi: 10.1371/journal.pone.0090480

Table 1. Commonly used abbreviations.

Symbol Description
0D zero-dimensional, i.e. single-compartment or space clamp models; whose spatial extents are confined to a point
1D cable-like, multi-compartment spatial structure; homo-morphic to line
2D etc. two- or more dimensional, refers to the number of states that describe the excitable system’s dynamics
AIS the axon’s initial segment
AP Action potential
ASA Adjoint Sensitivity Analysis
BCI brain-computer interface
BMI brain-machine interface
BVP Boundary-value [ODE solution] problem
BVDP the Bonhoeffer-Van der Pol oscillator-dynamics model; also known as the Fitzhugh-Nagumo model
DBS Deep-brain stimulation
ES Electrical stimulation
FHOC Finite-Horizon Optimal-Control
FP Fixed point of system dynamics → vanishing derivative(s)
HH or HHM Hodgkin and Huxley’s [model of excitable membranes]
IM the Izhikevich model
LM the Linear sub-threshold model; also known in computational neuroscience as leaky integrate & fire
MRG the McIntyre, Richardson, and Grill model
OC Optimal-Control
ODE Ordinary Differential equation; see also PDE
PDE Differential equation involving partial derivatives; see also ODE
LAP the Least-Action Principle
RN Ranvier-node
RHS right-hand side
SD strength-duration [curve]
W.R.T. with respect to