Seismonastic or thigmonastic movements of Mimosa pudica L result most from the fast loss of water from swollen motor cells, generating temporarily collapse of cells and inducing quick curvature in the parts where they are located. Because this simple reason, this plant has been much studied since the 18th century, leading us to think about the classical binomial stimulus-response (action-reaction) compared with animals. Mechanic and electrical stimulus were used to investigate an analogy of the mimosa's branch with animal's neuron models. Mechanic and electric stimuli were tested to observe the action potential propagation through the mimosa's branch. Boolean function applied to the mimosa´s branch in analogy with an artificial neuron model is one of the peculiarities of this interesting plant in our hypothesis.