Parameter values of the monaural auditory brainstem model described in Figure 1a
| Synapse no. | Strength | τ (ms) | Delay (ms) | Polarity | Target | Origin |
|---|---|---|---|---|---|---|
| 1 | 1.6 | 1.6 | NA | Excitatory | CN | AN |
| 2 | 0.9 | 2.0 | 1.0 | Inhibitory | CN | IN1 |
| 3 | 3 | 1.0 | NA | Excitatory | IC BE | CN |
| 4 | 3.3 | 3.0 | 2.0 | Inhibitory | IC BE | IN2 |
| 5 | 3 | 1.0 | NA | Excitatory | IC BS | CN |
| 6 | 5 | 3.0 | 2.0 | Inhibitory | IC BS | IC BE |
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↵aThe auditory-nerve (AN) inputs were high-spontaneous-rate fibers simulated using the model of Zilany et al. (2014). The best frequency was specified for the AN fiber and inherited by higher-level cells. The IC band-enhanced (BE) cell model was based on the Same-Frequency Inhibitory-Excitatory model of Nelson and Carney (2004) with parameters based on cell “C” in their Figure 8. The present model is an extension of the Nelson-Carney model in that it includes the band-suppressed cell model. Each synaptic activation was represented by an α function with a time constant, τ. The “delay” value represents the relative delay between excitatory and inhibitory synaptic signals converging on a common target. BS, Band-suppressed; IN1 and IN2, interneuron 1 and 2; NA, not applicable.