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Fig. 7 | The Journal of Mathematical Neuroscience

Fig. 7

From: Frequency Preference Response to Oscillatory Inputs in Two-dimensional Neural Models: A Geometric Approach to Subthreshold Amplitude and Phase Resonance

Fig. 7

Snapshots of the moving phase-plane diagram for the linear system (29)–(30) for α=1, ϵ=0.1, f=1 and representative values of t within one cycle (T=1000). The solid-red lines represent the moving v-nullcline. The dashed-red lines represent the v-nullclines for A t =0 (middle), A t =1 (top), and A t =−1 (bottom). The solid-green line represents the (fixed) w-nullcline. The fixed solid-red line and the solid-green line represent the v- and w-nullclines for the unforced system ( A t =0), respectively. The dashed-red lines represent the v-nullclines for A t =1 (above), A t =0 (middle), and A t =−1 (below). As t increases, the red nullcline moves cyclically between the two dashed-red lines. The blue dot indicates the initial location of the trajectory (t=0=1000)

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