Schematic. Potentiation is modeled with Halfgate-Sets (rectangles with indentions), chambers (Q-V) and solutes (a-f). Specific solute concentrations (input symbols) influence Halfgates and corresponding actuators change the concentrations of a solute (indention). Graph. Concentration [a] in Q chamber (thin line) represents a high frequency input to neuron. [b] in R (heavy black line) shows an increasing slope emulating EPSP. [c] in R (light gray line) embodies memory. [c] in R controls the slope of [b] in R.