Leaky Process

Description:

A standard LIN implementation. Holds good for most systems so long as the decay time constant is at least twice the iterative time step.

Accepts additive ('add') (x1 + x2 ... + xn), shunt multiplicative ('shunt') (x1 ... xn x (p + xn+1 ... xm) and shunt divisive ('shunt_div') (x1 ... xn / (p + xn+1 ... xm) (see state data for a description of p)

State data:

tau_membrane (SINGLE) (num_units x 1 / 1 x 1):

The membrane time constant. Can be a single value for all units, or an explict value for every unit in the sheet. If using the explicit mode please note that ALL data must be explicitly specified.

sigma_membrane (SINGLE) (num_units x 1 / 1 x 1) (default = 0):

The synaptic noise. Is currently normally distributed with zero offset only. Can be a single value for all units, or an explict value for every unit in the sheet. If using the explicit mode please note that ALL data must be explicitly specified.

p (SINGLE) (num_units x 1 / 1 x 1) (default = 1):

The shunting offset. This only affects cells connected by multiplicative shunting or divisive shunting types (e.g. (x1 ... xn x (p + xn+1 ... xm) or (x1 ... xn / (p + xn+1 ... xm)). Can be a single value for all units, or an explict value for every unit in the sheet. If using the explicit mode please note that ALL data must be explicitly specified.

pos_reversal_potential (SINGLE) (num_units x 1 / 1 x 1) (default = inf):

Positive reversal potential, describes the unit's membrane's self restoring reaction to positive inputs - effectively provides a upper limit for the effect of positive inputs. Can be a single value for all units, or an explict value for every unit in the sheet. If using the explicit mode please note that ALL data must be explicitly specified.

neg_reversal_potential (SINGLE) (num_units x 1 / 1 x 1) (default = -inf):

Negative reversal potential, describes the unit's membrane's self restoring reaction to negative inputs - effectively provides a lower limit for the effect of negative inputs. Can be a single value for all units, or an explict value for every unit in the sheet. If using the explicit mode please note that ALL data must be explicitly specified.