. 2021 Mar 24;11:6719. doi: 10.1038/s41598-021-85827-w

Table 1.

Synapse parameters of the SNN detector. A connection between two neurons (Fig. 1d) is characterized by the positive (excitatory, exc) or negative (inhibitory, inh) current in fA and the time constant.

Connection	Name	Connection strength (fA)	Polarity	Time constant $τ$ (ms)
Input UP spikes to second layer	$S_{u p - s l}$	[7 14]	exc	[3 6]
Input DN spikes to second layer	$S_{d n - s l}$	[7 14]	inh	$τ_{S_{u p - s l}}$ -[0.1 1]
Input UP spikes to dis-inhibitory neuron	$S_{u p - d i}$	21	exc	5
Input DN spikes to dis-inhibitory neuron	$S_{d n - d i}$	21	exc	5
Dis-inhibitory neuron to global-inhibitory neuron	$S_{d i - g i}$	17.5	inh	20
Poisson to global-inhibitory neuron	$S_{p o i s s - g i}$	-	exc	5
Global-inhibitory neuron to second layer	$S_{g i - s l}$	24.5	inh	5