A magnetic field generator includes a plurality of conductive windings comprising a first conductive winding arranged in a first plane and a second conductive winding arranged in a second plane that is substantially parallel to the first plane. The plurality of conductive windings are configured to generate, when supplied with a drive current, a first component of a compensation magnetic field. The first component of the compensation magnetic field is configured to actively shield a magnetic field sensing region located between the first conductive winding and the second conductive winding from ambient background magnetic fields along a first axis that is substantially orthogonal to the first plane and the second plane.

A magnetic field generator includes a first planar substrate, a second planar substrate positioned opposite to the first planar substrate and separated from the first planar substrate by a gap, a first wiring set on the first planar substrate, a second wiring set on the second planar substrate, and one or more interconnects between the first planar substrate and the second planar substrate. The one or more interconnects electrically connect the first wiring set with the second wiring set to form a continuous electrical path. The continuous electrical path forms a conductive winding configured to generate, when supplied with a drive current, a first component of a compensation magnetic field configured to actively shield a magnetic field sensing region located in the gap from ambient background magnetic fields along a first axis that is substantially parallel to the first planar substrate and the second planar substrate.

A magnetic field measurement system, non-transitory computer-readable medium or method can include instructions for, or performance of, actions including receiving output of multiple first magnetic field sensors and multiple second magnetic field sensors; and demixing, using the output of the first and second magnetic field sensors, at least one signal from at least one target source from signals from other magnetic field sources. The demixing may be performed using a model in which the output of the first magnetic field sensors includes the at least one signal from the at least one target source and that the output of the second magnetic field sensors does not include the at least one signal from the at least one target source.

A system for detecting bioelectrical signals of a user comprising: a set of sensors configured to detect bioelectrical signals from the user, each sensor in the set of sensors configured to provide non-polarizable contact at the body of the user; an electronics subsystem comprising a power module configured to distribute power to the system and a signal processing module configured to receive signals from the set of sensors; a set of sensor interfaces coupling the set of sensors to the electronics subsystem and configured to facilitate noise isolation within the system; and a housing coupled to the electronics subsystem, wherein the housing facilitates coupling of the system to a head region of the user.

A system and method for controlling a non-tactile device including a receiving device configured to receive signals corresponding to a user's brain waves or movements, the brain waves or movements corresponding to a series of directional intentions, the intentions defining at least one line pattern, a processor configured to process the at least one line pattern, each of said at least one line patterns associated with an action of the device, and output a control signal to the non-tactile device related to the action.

According to one embodiment, a magnetic sensor includes first and second elements, first and second interconnects, a first circuit portion electrically connected to the first and second interconnects and a second circuit portion electrically connected to the first and second elements. The first circuit portion supplies a first alternating current to the first interconnect and supplies a second alternating current to the second interconnect. The second circuit portion supplies a first element current to the first element and supplies a second element current to the second element. At a first time, the first alternating current has a first alternating current orientation, and the second alternating current has a second alternating current orientation. At a second time, the first alternating current has an opposite orientation to the first alternating current orientation, and the second alternating current has an opposite orientation to the second alternating current orientation.

Provided are methods to measure and or monitor consciousness in a subject, including analyzing brain activity with weighted symbolic mutual information (wSMI) and/or Kolgomorov symbolic complexity (KSC). In addition, methods and apparatus to administer a stimulus and/or a medicament to a subject according to their consciousness level which has been determined using the method described herein are also provided.

According to one embodiment, a magnetic sensor includes a first element, a first wire, and a first magnetic part. The first element includes a first magnetic layer, a first counter magnetic layer, and a first nonmagnetic layer provided between the first magnetic layer and the first counter magnetic layer. A direction from the first counter magnetic layer toward the first magnetic layer is along a first direction. The first wire extends in a second direction crossing the first direction. The first magnetic part includes a first region and a first counter region. At least a portion of the first wire is between the first region and the first counter region in the first direction.

Embodiments of the present systems and methods may relate to a non-invasive system with diagnostic and treatment capacities that use a unified code that is intrinsic to physiological brain function. For example, in an embodiment, a computer-implemented method for affecting living neural tissue may comprise receiving at least one signal from at least one read modality, the signal representing release of photons from mitochondria of the living neural tissue, computing at least one signal to effect alterations to the living neural tissue based on the received input signal, the computed signal adapted to cause transmission of photons to the living neural tissue, and delivering the photons to the living neural tissue to effect alterations to the living tissue.

A magnetic measuring device includes a magnetic sensor and multiple plate parts. At least one of the plate parts holds the magnetic sensor, and the plate parts are detachably joined to each other at edges of the plate parts.