Mirror neuron refers to a neuron that becomes active when a motor action is carried out and when another organism is observed carrying out the same action; cell that is active during a movement and while watching another perform the same movement.
Mirror neuron, likewise, is a neuron in the pre-motor area of the monkey’s cortex that responds when the monkey grasps an object and also when the monkey observes someone else, which can be another monkey or the experimenter grasping the object. Please see also Audiovisual mirror neuron.