Spontaneous switching in coupled biological oscillator systems constructed with living cells of the true slime mold

Coupled oscillator systems with oscillating cells of plasmodium of the true slime mold were constructed with a cell pattering method using microfabrication technique. Parameters in this system such as coupling strength can be systematically controlled like in computer simulations. We constructed three-oscillator systems in rings and observed spontaneous switching among typical spatio-temporal patterns even when coupling strength was fixed.