Coupled dynamics of T-SKONE. (A) Frequency modulation: FFT power density spectra of the neuron for Configuration I (solid blue line) and Configuration II (dashed magenta line), for all five skyrmions (Sk1–Sk5). (B) Zoomed-in plot of (A). (C) to (F) Amplitude modulation: amplitudes of oscillation for all five skyrmions shown at a range of frequencies for Configuration I (blue circles) and Configuration II (magenta triangles).