A physiological information measurement system capable of achieving decrease in time for attachment of a plurality of sensors to a subject and preparation for measurement is provided. A head-mounted measurement system includes a housing attachable to and removable from a head of a subject, a plurality of sensors held by the housing, and a control unit (signal processing unit) that synchronizes signals outputted from the plurality of sensors with each other. The plurality of sensors include an NIRS probe (a first sensor) that measures brain activities and an ultra-wide-angle camera (a second sensor) that obtains an image of a face of the subject.

A physiological information measurement system capable of achieving decrease in time for attachment of a plurality of sensors to a subject and preparation for measurement is provided. A head-mounted measurement system includes a housing attachable to and removable from a head of a subject, a plurality of sensors held by the housing, and a control unit (signal processing unit) that synchronizes signals outputted from the plurality of sensors with each other. The plurality of sensors include an NIRS probe (a first sensor) that measures brain activities and an ultra-wide-angle camera (a second sensor) that obtains an image of a face of the subject.

A biomagnetic field measurement device to measure a biomagnetic field includes a superconducting quantum interference device (SQUID) sensor, and includes a flux locked loop unit. The SQUID sensor includes an adjustment device configured to adjust a loop gain of the flux locked loop unit.

A biomagnetic field measurement device to measure a biomagnetic field includes a superconducting quantum interference device (SQUID) sensor, and includes a flux locked loop unit. The SQUID sensor includes an adjustment device configured to adjust a loop gain of the flux locked loop unit.

Devices and systems as described herein is configured to sense a signal, such as a signal from an individual. In some embodiments, a signal is a magnetic field. In some embodiments, a source of a signal is an individual's organ, such as a heart muscle. A device or system, in some embodiments, comprises one or more sensors, such as an array of sensors configured to sense the signal. A device or system, in some embodiments, comprises a shield or portion thereof to reduce noise and enhance signal collection.

Devices and systems as described herein is configured to sense a signal, such as a signal from an individual. In some embodiments, a signal is a magnetic field. In some embodiments, a source of a signal is an individual's organ, such as a heart muscle. A device or system, in some embodiments, comprises one or more sensors, such as an array of sensors configured to sense the signal. A device or system, in some embodiments, comprises a shield or portion thereof to reduce noise and enhance signal collection.

A method of analyzing a complex rhythm disorder in a human heart includes accessing signals from a plurality of sensors disposed spatially in relation to the heart, where the signals are associated with activations of the heart, and identifying a region of the heart having an activation trail that is rotational or radially emanating, where the activation trail is indicative of the complex rhythm disorder and is based on activation times associated with the activations of the heart.

Devices and techniques for magnetic detection of myocardial forces are generally described. In some examples, cardiac tissue may be cultured such that the cardiac tissue adheres to a first post and a second post. In further examples, a magnetometer may detect a change in a magnetic field resulting from a deflection of the first post in a first direction from a first position to a second position. In some other examples a signal corresponding to the change in the magnetic field may be generated. In still other examples, frequencies of the signal outside of a first frequency range may be excluded to produce a filtered signal. In various examples, the first frequency range may include frequencies associated with beating of cardiac tissue. In still further examples, a force exerted by the cardiac tissue may be determined based at least in part on the filtered signal.

An organ evaluation device, system, or method is configured to receive electrophysiological data from a patient or model organism and integrates the data in a computational backend environment with anatomical data input from an external source, spanning a plurality of file formats, where the input parameters are combined to visualize and output current density and/or current flow activity having ampere-based units displayed in the spatial context of heart or other organ anatomy.

A method for determining the vital functions of a vehicle occupant enables precise measurements and is easy to use without negatively affecting the vehicle occupant. The method includes determining the vital functions of the vehicle occupant using a sensor device integrated in a vehicle seat of a motor vehicle, and acquiring measurement signals of the vehicle occupant from which cardiogram signals are acquired. The method further includes using an evaluation unit to ascertain the vital functions of the vehicle occupant from the cardiogram signals. The sensor device is a magnetic field sensor device, and the cardiogram signals are magnetic cardiogram signals.