An access control unit having a novel structure and arrangement, including a first layer comprising an electrostimulation contact interface, a second layer including a biometric sensor coupled to the electrostimulation contact interface, and a third layer including a microprocessor unit in communication with the electrostimulation contact interface. The second layer is sandwiched between the first layer and the third layer. The electrostimulation contact interface comprises one or more anode/cathode arrays configured to deliver neurostimulative excitations to the electrostimulation contact interface to elicit behavior modification.

An access control unit having a novel structure and arrangement, including a first layer comprising an electrostimulation contact interface, a second layer including a biometric sensor coupled to the electrostimulation contact interface, and a third layer including a microprocessor unit in communication with the electrostimulation contact interface. The second layer is sandwiched between the first layer and the third layer. The electrostimulation contact interface comprises one or more anode/cathode arrays configured to deliver neurostimulative excitations to the electrostimulation contact interface to elicit behavior modification.

Embodiments of the disclosure provide for variable electrostimulative behavior modification. A method for variable electrostimulative behavior modification includes sensing placement of a first anatomical portion of a body in contact to a surface of a target object adapted for behavior modification with a multiplicity of electrostimulative end points coupled to an energy source. The method additionally includes delivering an electrical neurostimulus through one of the end points nearest to the placement of the first anatomical portion in proximity to the surface the electrical neurostimulus including a waveform promoting a modification of behavior associated with the placement of the first anatomical portion in proximity to the surface. Thereafter, an anomalous characteristic of the sensed placement indicating a failure to modify the behavior may be detected and a profile of the waveform of the electrical neurostimulus changes to a different waveform in response to the anomalous characteristic of the sensed placement.

A method of neurostimulation may include delivering an electrical signal to a plurality of electrodes connected to a patient. The electrical signal may include a plurality of spaced-apart packets of electrical pulses. The method may include modulating at least one of a quantity of the plurality of electrical pulses within ones of the plurality of packets of electrical pulses, a width in time of the plurality of electrical pulses within ones of the plurality of packets of electrical pulses, an amplitude in voltage of the plurality of electrical pulses within ones of the plurality of packets of electrical pulses, a separation in time between adjacent ones of the plurality of electrical pulses within ones of the plurality of packets of electrical pulses, and a separation in time between adjacent ones of the plurality of packets of electrical pulses to modulate the electrical signal.

A method of galvanic vestibular stimulation (GVS) may include delivering an electrical signal via transdermal electrical stimulation using a plurality of electrodes connected to a patient. The electrical signal may include an amplitude and a carrier frequency. The method may include modulating at least one of the amplitude and the carrier frequency based on a modulation waveform to modulate the electrical signal, the modulation waveform may include a modulation frequency that is less than the carrier frequency.

A method of neurostimulation may include delivering an electrical signal to a plurality of electrodes connected to a patient. The electrical signal may include an amplitude and a carrier frequency. The method may include modulating the electrical signal based on an audio waveform. In some embodiments, the modulating may include modulating at least one of the amplitude and the carrier frequency based on the audio waveform to modulate the electrical signal.

A method of neurostimulation may include delivering a modulated electrical signal to a patient through galvanic vestibular stimulation (GVS) and delivering a time varying thermal waveform to the patient through caloric vestibular stimulation (CVS) simultaneous with the delivery of the modulated electrical signal through GVS.

A method of neurostimulation may include delivering an electrical signal to a plurality of electrodes connected to a patient. The electrical signal may include a plurality of spaced-apart packets of electrical pulses. The method may include modulating at least one of a quantity of the plurality of electrical pulses within ones of the plurality of packets of electrical pulses, a width in time of the plurality of electrical pulses within ones of the plurality of packets of electrical pulses, an amplitude in voltage of the plurality of electrical pulses within ones of the plurality of packets of electrical pulses, a separation in time between adjacent ones of the plurality of electrical pulses within ones of the plurality of packets of electrical pulses, and a separation in time between adjacent ones of the plurality of packets of electrical pulses to modulate the electrical signal.

A method of galvanic vestibular stimulation (GVS) may include delivering an electrical signal via transdermal electrical stimulation using a plurality of electrodes connected to a patient. The electrical signal may include an amplitude and a carrier frequency. The method may include modulating at least one of the amplitude and the carrier frequency based on a modulation waveform to modulate the electrical signal, the modulation waveform may include a modulation frequency that is less than the carrier frequency.

A method of neurostimulation includes delivering an electrical signal to a plurality of electrodes (215A, 215B) connected to a patient. The electrical signal is characterized by an amplitude and a carrier frequency. The method includes modulating an electrical signal based on an audio waveform. In some cases, the modulation may include modulating at least one of an amplitude and a carrier frequency based on the audio waveform. A neurostimulation device (200) comprising first and second electrodes is also disclosed.