CARLsim
6.1.0
CARLsim: a GPU-accelerated SNN simulator
|
A struct to assign a timing-based E-STDP curve. More...
#include <carlsim_datastructures.h>
Public Member Functions | |
TimingBasedCurve (float _alphaPlus, float _tauPlus, float _alphaMinus, float _tauMinus, float _gamma) | |
Public Attributes | |
float | alphaMinus |
the amplitude of the exponential curve at post-pre side More... | |
float | alphaPlus |
the amplitude of the exponential curve at pre-post side More... | |
float | gamma |
the turn-over point More... | |
STDPCurve | stdpCurve |
the type of STDP curve More... | |
float | tauMinus |
the time constant of the exponential curve at post-pre side More... | |
float | tauPlus |
the time constant of the exponential curve at pre-post side More... | |
This E-STDP curve is sensitive to spike timing at the pre-post side. The parameters (_alphaPlus, _tauPlus, gamma) specifies the curve at the pre-post side. The curve is basically an exponential curve, which specified by (_alphaPlus, _tauPlus), transformed by gamma. The value of gamma is the turn-over point. The STDP function at the pre-post side is governed by the following equation:
Simply, if t is larger than gamma, the STDP function is the mirrored exponential curve along x-axis. If t is smaller than gamma, the STDP function is the exponential curve stretched to the turn-over point. The parameters (_alphaMinus, _tauMinus) specifies the exponential curve at the post-pre side. This curve requires _alphaMinus to be a negative value.
[in] | _alphaPlus | the amplitude of the exponential curve at pre-post side |
[in] | _tauPlus | the decay constant of the exponential curve at pre-post side |
[in] | _alphaMinus | the amplitude of the exponential curve at post-pre side |
[in] | _tauMinus | the decay constant of the exponential curve at post-pre side |
Definition at line 758 of file carlsim_datastructures.h.
|
inline |
float alphaMinus |
Definition at line 773 of file carlsim_datastructures.h.
float alphaPlus |
Definition at line 771 of file carlsim_datastructures.h.
float gamma |
Definition at line 775 of file carlsim_datastructures.h.
STDPCurve stdpCurve |
Definition at line 770 of file carlsim_datastructures.h.
float tauMinus |
Definition at line 774 of file carlsim_datastructures.h.
float tauPlus |
Definition at line 772 of file carlsim_datastructures.h.