Chapter 4 has examined in detail the functional and dynamic elements required to model neurons and small BNNs using the locus approach. These have included pure delays to emulate spike propagation down axons, one- and two-time-constant low-pass filters to emulate the production of epsps and ipsps, low-pass attenuation and delays to emulate psp propagation on passive dendrites and soma membranes, and finally IPFM and RPFM models for spike generation.
The locus models were applied in studies of hypothetical neural signal processing operations (the T-neuron and band detector) and also central pattern generation, including reciprocal inhibition (RI), ring oscillators, and other "resonant" neural structures. The simple RI pair, as modeled here, was shown to be a positive feedback system incapable of firing alternate, two-phase bursts.
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