Table 3.
Network layout, connectivity, and stimulation protocol
| Layout | Symbol | Value | Connectivity | Symbol | Value | Stimulation | Symbol | Value |
|---|---|---|---|---|---|---|---|---|
| Cortical patch size | Cps | 2.0 × 1.5 mm | Axonal conduction speed | V | 0.2 m/s | Background noise PYR (encoding) | 650 Hz | |
| Simulated HCs (each network) | nHC | 12 | Myelinated axonal speed | Vmyel | 2 m/s | Background noise PYR (recall) | 450 Hz | |
| Simulated MCs (each network) | nMC | 120 | Minimal synaptic delay | 1.5 ms | Background noise BA | 75 Hz | ||
| Simulated MCs per HC | 10 | HC diameter | dHC | 0.5 mm | Background conductance | ± 1.5 nS | ||
| Number of items | nITEM | 4 (from 10) | Distance between networks | 10 mm | Stimulation duration | tstim | 250 ms | |
| Number of contexts | nCONTEXT | 10 (from 10) | PYR-PYR recurrent cp | cpPP | 0.2 | Stimulation rate | rstim | 500 Hz |
| Layer 2/3 pyramidal per MC | 30 | PYR-PYR long-range cp | cpPPL | 0.25 | Cue stimulation length | tcue | 50 ms | |
| Basket cells per MC | 2 | PYR-PYR associative cp | cpPPA | 0.02 | Cue stimulation rate | rcue | 400 Hz | |
| MC grid size (Item + Context) | 24 × 10 | PYR-BA cp, BA-PYR cp | cpPB, cpBP | 0.7 | Stimulation and cue conductance | gstim | +1.5 nS | |
| PYR-BA cc | gPB | 3 nS | Interstimulus interval | Tstim | 500 ms | |||
| BA-PYR cc | gBP | −7 nS | Attractor detection threshold | rth | 10 Hz |
PYR, pyramidal cell; BA, basket cell; cp, connection probability; cc, connection conductance.