An arrhythmic heartbeat with three distinct beats is called a Trigeminy Pulse. This piece divides three screens into grids, each square of the grids simulating a variation of a neuron-firing model (FitzHugh-Nagomo, 1961). The squares pulse, push, and pull against each other, each with distinct behavior yet indistinct boundaries, never repeating. The central screen mimics a heart, beating in an irregular triple rhythm. The side screens form lungs, expanding and contracting in a slow, synchronized rhythm.