Table 3. Parameters for each synapse type.
| Parameter | PN to KC | KC to EN |
|---|---|---|
| τsyn | 3.0 | 8.0 |
| ϕ | 0.93 | 8.0 |
| g | 0.25 | [0, 2.0] |
| τc | N/A | 40ms |
| τd | N/A | 20ms |
The parameter τsyn is the time constant for synapses, ϕ represents the quantity of neurotransmitter released per synapse, and g is the weight per synapse. Note that the weights of connections from vPN to KC are fixed whereas the weights from KC to EN are bounded to the range of 0 to 2.0. The parameter τc is the time constant for Izhikevich type synaptic eligibility trace in KC-EN synapses, and τd is the Biogenic Amine concentration time constant.