Method and device for producing a desired brain state

A method for producing a desired brain state in an individual by continuously measuring and controlling a brain signal comprising:

• measuring an electroencephalogram signal indicating a brain state of an individual by electrodes positioned on the head of the individual;
• amplifying the measured electroencephalogram signal;
• converting the amplified electroencephalogram signal into a digital signal;
• comparing the characteristics of the digital electroencephalogram signal to the characteristics of a desired electroencephalogram signal using a computational system to determine the difference between the digital electroencephalogram signal and the desired electroencephalogram signal;
• applying a magnetic field having parameters, the parameters being magnet position, field magnitude, pulse frequency, and pulse train duration, to alter the brain state of the individual by positioning magnets on the head of the individual, wherein a value for at least one parameter is selected to alter the brain state and achieve the desired electroencephalogram signal;
• measuring a resulting electroencephalogram signal, the resulting electroencephalogram signal corresponding to the selected value of the at least one parameter;
• and
• comparing the characteristics of the resulting electroencephalogram signal to the characteristics of the desired electroencephalogram signal to determine the need to further alter the brain state, wherein the steps are under computer control, the method is continuous, and the at least one parameter is varied according to a gradient descent algorithm.

A device for producing a desired brain state in an individual by measuring and controlling a brain signal comprising;

• means for measuring a brain signal indicating a brain state of an individual;
• a computational system for comparing characteristics of the measured brain state to characteristics of a desired brain state to determine the difference between the measured brain state and the desired brain state;
• and
• means for applying a magnetic field having parameters to the brain of the individual to alter the brain state, the parameters being magnet position, field magnitude, pulse frequency, and pulse train duration.

A device for producing a desired brain state in an individual by measuring and controlling an electroencephalogram signal comprising:

• electrodes for measuring the electroencephalogram signal of an individual, the electrodes being adapted to be positioned on the surface of the skull and having wires for relaying the electroencephalogram signal;
• a lattice for holding the electrodes on the surface of the skull;
• a multi-channel opto-isolation amplifier for receiving the electroencephalogram signal from the wires of the electrodes and amplifying the electroencephalogram signal relayed by the electrodes;
• an analog/digital converter for converting the measured signal into a digital signal;
• a computational system including quantitative electroencephalogram software for monitoring the electroencephalogram signal and comparing the signal to a desired electroencephalogram signal to determine the difference between the measured electroencephalogram signal and the desired electroencephalogram signal;
• a pulse train generator for generating a magnetic field having a field magnitude, a pulse frequency, and a pulse train duration in accordance with the determination of the computational system;
• magnets to apply the magnetic field to the brain of the individual to alter the brain state;
• and
• a positioning apparatus for controlling the position of the magnets on the skull of the individual in accordance with the determination of the computational system, the positioning apparatus using a bar holding the magnets, the bar being moveable along a track by a motor, and the positioning apparatus enabling movement of the magnets between the front and back of the skull.