timing_vogels_2011_impl.h File Reference

Timing rule from Vogels 2011. More...

#include <neuron/plasticity/stdp/synapse_structure/synapse_structure_weight_impl.h>
#include "timing.h"
#include <neuron/plasticity/stdp/weight_dependence/weight_one_term.h>
#include <debug.h>
#include <neuron/plasticity/stdp/maths.h>
#include <neuron/plasticity/stdp/stdp_typedefs.h>

Go to the source code of this file.

Data Structures
struct	plasticity_trace_region_data_t
	Configuration information about plasticity traces. More...

Typedefs
typedef int16_t	post_trace_t
	Type of post-traces.
typedef int16_t	pre_trace_t
	Type of pre-traces.

Functions
static int16_t	timing_decay_post (uint32_t time, uint32_t last_time, post_trace_t last_trace)
static int16_t	timing_add_spike (uint32_t time, uint32_t last_time, int16_t last_trace)
	Common code for adding a spike to the trace.
static post_trace_t	timing_get_initial_post_trace (void)
	Get an initial post-synaptic timing trace.
static post_trace_t	timing_add_post_spike (uint32_t time, uint32_t last_time, post_trace_t last_trace)
	Add a post spike to the post trace.
static pre_trace_t	timing_add_pre_spike (uint32_t time, uint32_t last_time, pre_trace_t last_trace)
	Add a pre spike to the pre trace.
static update_state_t	timing_apply_pre_spike (uint32_t time, pre_trace_t trace, uint32_t last_pre_time, pre_trace_t last_pre_trace, uint32_t last_post_time, post_trace_t last_post_trace, update_state_t previous_state)
	Apply a pre-spike timing rule state update.
static update_state_t	timing_apply_post_spike (uint32_t time, post_trace_t trace, uint32_t last_pre_time, pre_trace_t last_pre_trace, uint32_t last_post_time, post_trace_t last_post_trace, update_state_t previous_state)
	Apply a post-spike timing rule state update.

Variables
int16_lut *	tau_lookup
	Lookup table for pre-computed τ

Detailed Description

Timing rule from Vogels 2011.

Citation:
Inhibitory plasticity balances excitation and inhibition in sensory pathways and memory networks, Vogels TP, Sprekeler H, Zenke F, Clopath C, Gerstner W., Science. 2011 Dec 16;334(6062):1569-73.
doi: 10.1126/science.1211095.

Definition in file timing_vogels_2011_impl.h.

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Data Structure Documentation

plasticity_trace_region_data_t

struct plasticity_trace_region_data_t

Configuration information about plasticity traces.

Definition at line 44 of file timing_recurrent_dual_fsm_impl.h.

Data Fields
int32_t	accumulator_depression_plus_one	Threshold above which we won't hit depression trigger after decrement.
int32_t	accumulator_potentiation_minus_one	Threshold below which we won't hit potentiation trigger after increment.
int32_t	alpha

Typedef Documentation

post_trace_t

typedef int16_t post_trace_t

Type of post-traces.

Definition at line 33 of file timing_vogels_2011_impl.h.

pre_trace_t

typedef int16_t pre_trace_t

Type of pre-traces.

Definition at line 35 of file timing_vogels_2011_impl.h.

Function Documentation

timing_decay_post()

static int16_t timing_decay_post ( uint32_t  time, uint32_t  last_time, post_trace_t  last_trace  )

inlinestatic

Definition at line 64 of file timing_vogels_2011_impl.h.

timing_add_spike()

static int16_t timing_add_spike ( uint32_t  time, uint32_t  last_time, int16_t  last_trace  )

inlinestatic

Common code for adding a spike to the trace.

Parameters

[in]	time	the time of the spike
[in]	last_time	the time of the previous spike update
[in]	last_trace	the trace to update

Returns

the updated trace

Definition at line 82 of file timing_vogels_2011_impl.h.

timing_get_initial_post_trace()

static post_trace_t timing_get_initial_post_trace ( void  )

inlinestatic

Get an initial post-synaptic timing trace.

Returns

the post trace

Definition at line 99 of file timing_vogels_2011_impl.h.

timing_add_post_spike()

static post_trace_t timing_add_post_spike ( uint32_t  time, uint32_t  last_time, post_trace_t  last_trace  )

inlinestatic

Add a post spike to the post trace.

Parameters

[in]	time	the time of the spike
[in]	last_time	the time of the previous spike update
[in]	last_trace	the post trace to update

Returns

the updated post trace

Definition at line 108 of file timing_vogels_2011_impl.h.

timing_add_pre_spike()

static pre_trace_t timing_add_pre_spike ( uint32_t  time, uint32_t  last_time, pre_trace_t  last_trace  )

inlinestatic

Add a pre spike to the pre trace.

Parameters

[in]	time	the time of the spike
[in]	last_time	the time of the previous spike update
[in]	last_trace	the pre trace to update

Returns

the updated pre trace

Definition at line 118 of file timing_vogels_2011_impl.h.

timing_apply_pre_spike()

static update_state_t timing_apply_pre_spike ( uint32_t  time, pre_trace_t  trace, uint32_t  last_pre_time, pre_trace_t  last_pre_trace, uint32_t  last_post_time, post_trace_t  last_post_trace, update_state_t  previous_state  )

inlinestatic

Apply a pre-spike timing rule state update.

Parameters

[in]	time	the current time
[in]	trace	the current pre-spike trace
[in]	last_pre_time	the time of the last pre-spike
[in]	last_pre_trace	the trace of the last pre-spike
[in]	last_post_time	the time of the last post-spike
[in]	last_post_trace	the trace of the last post-spike
[in]	previous_state	the state to update

Returns

the updated state

Definition at line 132 of file timing_vogels_2011_impl.h.

timing_apply_post_spike()

static update_state_t timing_apply_post_spike ( uint32_t  time, post_trace_t  trace, uint32_t  last_pre_time, pre_trace_t  last_pre_trace, uint32_t  last_post_time, post_trace_t  last_post_trace, update_state_t  previous_state  )

inlinestatic

Apply a post-spike timing rule state update.

Parameters

[in]	time	the current time
[in]	trace	the current post-spike trace
[in]	last_pre_time	the time of the last pre-spike
[in]	last_pre_trace	the trace of the last pre-spike
[in]	last_post_time	the time of the last post-spike
[in]	last_post_trace	the trace of the last post-spike
[in]	previous_state	the state to update

Returns

the updated state

Definition at line 162 of file timing_vogels_2011_impl.h.

Variable Documentation

tau_lookup

int16_lut* tau_lookup

extern

Lookup table for pre-computed τ

Definition at line 25 of file timing_vogels_2011_impl.c.