1. A method of eliciting a response to external stimuli by a robotic device, comprising the steps of: determining a static range of potential first stimuli; inputting said static range of each of said first stimuli into a first memory device; determining an actual range of each of said first stimuli; sensing the actual value of each of said first stimuli; calculating the absolute value of said actual value of each of said first stimuli; comparing all of said absolute values of said first stimuli with each other to determine the intensity of each of said first stimuli; comparing said actual value of each of said first stimuli with said static range of each of said first stimuli to establish an impact variation; and determining whether said impact variation of each of said first stimuli is within said static range of each of said first stimuli.