An access control system comprising: an access control panel including a touchable surface for receiving a user touch comprising a first component and a second component, the first component comprising a micro-motion that is involuntary for the user, the second component consisting of a motion repertoire that is voluntary to the user; a touch sensor under the touchable surface, the touch sensor to capture the user touch; a processor coupled to the touch sensor, wherein the processor is configured to identify the first component for the user by using a neurological algorithm; distinguish the first component from the second component; perform signal processing of the first component of the user touch to determine a first signal that is based upon the involuntary micro-motion for the user; and in response to user calibration parameters associated with the user, extract unique values of predetermined features from the first signal to form a first identifier that uniquely identifies the user touching the touch sensor, the first identifier based upon the first component and the neurological algorithm. an access control panel including a touchable surface for receiving a user touch comprising a first component and a second component, the first component comprising a micro-motion that is involuntary for the user, the second component consisting of a motion repertoire that is voluntary to the user; a touch sensor under the touchable surface, the touch sensor to capture the user touch; a processor coupled to the touch sensor, wherein the processor is configured to identify the first component for the user by using a neurological algorithm; distinguish the first component from the second component; perform signal processing of the first component of the user touch to determine a first signal that is based upon the involuntary micro-motion for the user; and in response to user calibration parameters associated with the user, extract unique values of predetermined features from the first signal to form a first identifier that uniquely identifies the user touching the touch sensor, the first identifier based upon the first component and the neurological algorithm. the first component comprising a micro-motion that is involuntary for the user, the second component consisting of a motion repertoire that is voluntary to the user; a touch sensor under the touchable surface, the touch sensor to capture the user touch; a processor coupled to the touch sensor, wherein the processor is configured to identify the first component for the user by using a neurological algorithm; distinguish the first component from the second component; perform signal processing of the first component of the user touch to determine a first signal that is based upon the involuntary micro-motion for the user; and in response to user calibration parameters associated with the user, extract unique values of predetermined features from the first signal to form a first identifier that uniquely identifies the user touching the touch sensor, the first identifier based upon the first component and the neurological algorithm. identify the first component for the user by using a neurological algorithm; distinguish the first component from the second component; perform signal processing of the first component of the user touch to determine a first signal that is based upon the involuntary micro-motion for the user; and in response to user calibration parameters associated with the user, extract unique values of predetermined features from the first signal to form a first identifier that uniquely identifies the user touching the touch sensor, the first identifier based upon the first component and the neurological algorithm.