Figure 6.

(A) Appearance of stochastic multi-resonance in experiments in the brain. Dark gray square symbols represent the values of C₀ obtained in the experiments performed in the human auditory cortex. Dashed light gray line corresponds to best model prediction using a neuron with fixed threshold (Yasuda et al., 2008). Solid black line correspond to our model consisting of a FHN neuron and depressing synapses. Gray filled circle symbols shows C₀ when the weak signal is a train of (uncorrelated) Poisson pulses instead of the sinusoidal input (solid line). (B) Schematic overview showing the neuron and synapse mechanisms needed for the appearance of stochastic multi-resonances in feed-forward neural networks. (see (Torres et al., 2011) for more details).