Figure 7.

Bipolar signals ${V_{\mathrm{\text{e}}}}^2-{V_{\mathrm{\text{e}}}}^1$ recorded at 1 kHz for three selected curvatures κ = π/2 cm⁻¹(A), 0 cm⁻¹(B), andπ/2 cm⁻¹(C) for bath size ℓ_b = 6 mm and varying muscle thickness ℓ_m. The case of mucles thickness 25 μm correspends to the case of two-dimensional manifolds in three-dimensional simulations. When the muscle thickness is small (25 μm) the peak of the signal is shifted because the wavefront propagates faster. In that case, the amplitude of the signal is also extremely small. Substantial differences in the amplitude of the signals can be found at larger muscle thicknesses. The curvature of the domain does not play a major role in the recorded signals.