Slime mould Physarum polycephalum is a single cells visible by unaided eye. The cells shows a wide spectrum of intelligent behaviour. By interpreting the behaviour in terms of computation one can make aslime mould based computing device. The Physarum computers are capable to solve a range of tasks ofcomputational geometry, optimisation and logic. Physarum computers designed so far lack of localisedinputs. Commonly used inputs — illumination and chemo-attractants and repellents — usually act onextended domains of the slime mould’s body. Aiming to design massive-parallel tactile inputs for slimemould computers we analyse a temporal dynamic of P. polycephalum’s electrical response to tactile stimulation. In experimental laboratory studies we discover how the Physarum responds to application andremoval of a local mechanical pressure with electrical potential impulses and changes in its electricalpotential oscillation patterns.