ht_connection – Synapse with depression after Hill & Tononi (2005)

Description

This synapse implements the depression model described in [1, p 1678]. See docs/model_details/HillTononi.ipynb for details.

Synaptic dynamics are given by

P’(t) = ( 1 - P ) / tau_P P(T+) = (1 - delta_P) P(T-) text{ for T : time of a spike } \ P(t=0) = 1

w(t) = w_{max} * P(t) is the resulting synaptic weight

Parameters

The following parameters can be set in the status dictionary:

tau_P	ms	Synaptic vesicle pool recovery time constant
delta_P	real	Fractional change in vesicle pool on incoming spikes (unitless)
P	real	Current size of the vesicle pool [unitless, 0 <= P <= 1]

References

1

Hill S, Tononi G (2005). Modeling sleep and wakefulness in the thalamocortical system. Journal of Neurophysiology. 93:1671-1698. DOI: https://doi.org/10.1152/jn.00915.2004

Transmits

SpikeEvent

See also

Synapse, Hill-Tononi Plasticity