stdp

stdp - Synapse model for spike-timing dependent plasticity

Description

stdp_synapse is a synapse with spike-timing dependent plasticity (as defined in [1]). Here the weight dependence exponent can be set separately for potentiation and depression. Examples:

Multiplicative STDP

[2]

mu_plus = mu_minus = 1

Additive STDP

[3]

mu_plus = mu_minus = 0

Guetig STDP

[1]

mu_plus, mu_minus in [0, 1]

Van Rossum STDP

[4]

mu_plus = 0 mu_minus = 1

References

Parameters

Name

Physical unit

Default value

Description

d

ms

1ms

Synaptic transmission delay

lambda

real

0.01

tau_tr_pre

ms

20ms

tau_tr_post

ms

20ms

alpha

real

1

mu_plus

real

1

mu_minus

real

1

Wmax

real

100.0

Wmin

real

0.0

State variables

Name

Physical unit

Default value

Description

w

real

1.0

Synaptic weight

pre_trace

real

0.0

post_trace

real

0.0

Source code

The model source code can be found in the NESTML models repository here: stdp.

Characterisation